@tanstack/start-client-core - npm Package Compare versions

Comparing version 1.147.1 to 1.148.0

dist/esm/client-rpc/createClientRpc.d.ts

@@ -1,6 +0,6 @@
-import { TSS_SERVER_FUNCTION } from '../constants.js';
+import { TSS_SERVER_FUNCTION, ClientFnMeta } from '../constants.js';
 export declare function createClientRpc(functionId: string): ((...args: Array<any>) => Promise<any>) & {
     url: string;
-    functionId: string;
+    serverFnMeta: ClientFnMeta;
     [TSS_SERVER_FUNCTION]: boolean;
 };

dist/esm/client-rpc/createClientRpc.js

@@ -5,2 +5,3 @@ import { TSS_SERVER_FUNCTION } from "../constants.js";
   const url = process.env.TSS_SERVER_FN_BASE + functionId;
+  const serverFnMeta = { id: functionId };
   const clientFn = (...args) => {
@@ -11,3 +12,3 @@ return serverFnFetcher(url, args, fetch);
     url,
-    functionId,
+    serverFnMeta,
     [TSS_SERVER_FUNCTION]: true
@@ -14,0 +15,0 @@ });

dist/esm/client-rpc/createClientRpc.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"createClientRpc.js","sources":["../../../src/client-rpc/createClientRpc.ts"],"sourcesContent":["import { TSS_SERVER_FUNCTION } from '../constants'\nimport { serverFnFetcher } from './serverFnFetcher'\n\nexport function createClientRpc(functionId: string) {\n  const url = process.env.TSS_SERVER_FN_BASE + functionId\n\n  const clientFn = (...args: Array<any>) => {\n    return serverFnFetcher(url, args, fetch)\n  }\n\n  return Object.assign(clientFn, {\n    url,\n    functionId,\n    [TSS_SERVER_FUNCTION]: true,\n  })\n}\n"],"names":[],"mappings":";;AAGO,SAAS,gBAAgB,YAAoB;AAClD,QAAM,MAAM,QAAQ,IAAI,qBAAqB;AAE7C,QAAM,WAAW,IAAI,SAAqB;AACxC,WAAO,gBAAgB,KAAK,MAAM,KAAK;AAAA,EACzC;AAEA,SAAO,OAAO,OAAO,UAAU;AAAA,IAC7B;AAAA,IACA;AAAA,IACA,CAAC,mBAAmB,GAAG;AAAA,EAAA,CACxB;AACH;"}
+{"version":3,"file":"createClientRpc.js","sources":["../../../src/client-rpc/createClientRpc.ts"],"sourcesContent":["import { TSS_SERVER_FUNCTION } from '../constants'\nimport { serverFnFetcher } from './serverFnFetcher'\nimport type { ClientFnMeta } from '../constants'\n\nexport function createClientRpc(functionId: string) {\n  const url = process.env.TSS_SERVER_FN_BASE + functionId\n  const serverFnMeta: ClientFnMeta = { id: functionId }\n\n  const clientFn = (...args: Array<any>) => {\n    return serverFnFetcher(url, args, fetch)\n  }\n\n  return Object.assign(clientFn, {\n    url,\n    serverFnMeta,\n    [TSS_SERVER_FUNCTION]: true,\n  })\n}\n"],"names":[],"mappings":";;AAIO,SAAS,gBAAgB,YAAoB;AAClD,QAAM,MAAM,QAAQ,IAAI,qBAAqB;AAC7C,QAAM,eAA6B,EAAE,IAAI,WAAA;AAEzC,QAAM,WAAW,IAAI,SAAqB;AACxC,WAAO,gBAAgB,KAAK,MAAM,KAAK;AAAA,EACzC;AAEA,SAAO,OAAO,OAAO,UAAU;AAAA,IAC7B;AAAA,IACA;AAAA,IACA,CAAC,mBAAmB,GAAG;AAAA,EAAA,CACxB;AACH;"}

dist/esm/client/ServerFunctionSerializationAdapter.d.ts

 export declare const ServerFunctionSerializationAdapter: import('@tanstack/router-core').SerializationAdapter<{
-    functionId: string;
+    serverFnMeta: {
+        id: string;
+    };
 }, {
     functionId: string;
 }, never>;

dist/esm/client/ServerFunctionSerializationAdapter.js

@@ -11,3 +11,3 @@ import { createSerializationAdapter } from "@tanstack/router-core";
   },
-  toSerializable: ({ functionId }) => ({ functionId }),
+  toSerializable: ({ serverFnMeta }) => ({ functionId: serverFnMeta.id }),
   fromSerializable: ({ functionId }) => createClientRpc(functionId)
@@ -14,0 +14,0 @@ });

dist/esm/client/ServerFunctionSerializationAdapter.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"ServerFunctionSerializationAdapter.js","sources":["../../../src/client/ServerFunctionSerializationAdapter.ts"],"sourcesContent":["import { createSerializationAdapter } from '@tanstack/router-core'\nimport { TSS_SERVER_FUNCTION } from '../constants'\nimport { createClientRpc } from '../client-rpc/createClientRpc'\n\nexport const ServerFunctionSerializationAdapter = createSerializationAdapter({\n  key: '$TSS/serverfn',\n  test: (v): v is { functionId: string } => {\n    if (typeof v !== 'function') return false\n\n    if (!(TSS_SERVER_FUNCTION in v)) return false\n\n    return !!v[TSS_SERVER_FUNCTION]\n  },\n  toSerializable: ({ functionId }) => ({ functionId }),\n  fromSerializable: ({ functionId }) => createClientRpc(functionId),\n})\n"],"names":[],"mappings":";;;AAIO,MAAM,qCAAqC,2BAA2B;AAAA,EAC3E,KAAK;AAAA,EACL,MAAM,CAAC,MAAmC;AACxC,QAAI,OAAO,MAAM,WAAY,QAAO;AAEpC,QAAI,EAAE,uBAAuB,GAAI,QAAO;AAExC,WAAO,CAAC,CAAC,EAAE,mBAAmB;AAAA,EAChC;AAAA,EACA,gBAAgB,CAAC,EAAE,kBAAkB,EAAE,WAAA;AAAA,EACvC,kBAAkB,CAAC,EAAE,WAAA,MAAiB,gBAAgB,UAAU;AAClE,CAAC;"}
+{"version":3,"file":"ServerFunctionSerializationAdapter.js","sources":["../../../src/client/ServerFunctionSerializationAdapter.ts"],"sourcesContent":["import { createSerializationAdapter } from '@tanstack/router-core'\nimport { TSS_SERVER_FUNCTION } from '../constants'\nimport { createClientRpc } from '../client-rpc/createClientRpc'\n\nexport const ServerFunctionSerializationAdapter = createSerializationAdapter({\n  key: '$TSS/serverfn',\n  test: (v): v is { serverFnMeta: { id: string } } => {\n    if (typeof v !== 'function') return false\n\n    if (!(TSS_SERVER_FUNCTION in v)) return false\n\n    return !!v[TSS_SERVER_FUNCTION]\n  },\n  toSerializable: ({ serverFnMeta }) => ({ functionId: serverFnMeta.id }),\n  fromSerializable: ({ functionId }) => createClientRpc(functionId),\n})\n"],"names":[],"mappings":";;;AAIO,MAAM,qCAAqC,2BAA2B;AAAA,EAC3E,KAAK;AAAA,EACL,MAAM,CAAC,MAA6C;AAClD,QAAI,OAAO,MAAM,WAAY,QAAO;AAEpC,QAAI,EAAE,uBAAuB,GAAI,QAAO;AAExC,WAAO,CAAC,CAAC,EAAE,mBAAmB;AAAA,EAChC;AAAA,EACA,gBAAgB,CAAC,EAAE,aAAA,OAAoB,EAAE,YAAY,aAAa;EAClE,kBAAkB,CAAC,EAAE,WAAA,MAAiB,gBAAgB,UAAU;AAClE,CAAC;"}

dist/esm/constants.d.ts

@@ -35,2 +35,20 @@ export declare const TSS_FORMDATA_CONTEXT = "__TSS_CONTEXT";
 export declare function validateFramedProtocolVersion(contentType: string): void;
+/**
+ * Minimal metadata about a server function, available to client middleware.
+ * Only contains the function ID since name/filename may expose server internals.
+ */
+export interface ClientFnMeta {
+    /** The unique identifier for this server function */
+    id: string;
+}
+/**
+ * Full metadata about a server function, available to server middleware.
+ * This information is embedded at compile time by the TanStack Start compiler.
+ */
+export interface ServerFnMeta extends ClientFnMeta {
+    /** The original variable name of the server function (e.g., "myServerFn") */
+    name: string;
+    /** The source file path relative to the project root (e.g., "src/routes/api.ts") */
+    filename: string;
+}
 export {};

dist/esm/constants.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"constants.js","sources":["../../src/constants.ts"],"sourcesContent":["export const TSS_FORMDATA_CONTEXT = '__TSS_CONTEXT'\nexport const TSS_SERVER_FUNCTION = Symbol.for('TSS_SERVER_FUNCTION')\nexport const TSS_SERVER_FUNCTION_FACTORY = Symbol.for(\n  'TSS_SERVER_FUNCTION_FACTORY',\n)\n\nexport const X_TSS_SERIALIZED = 'x-tss-serialized'\nexport const X_TSS_RAW_RESPONSE = 'x-tss-raw'\nexport const X_TSS_CONTEXT = 'x-tss-context'\n\n/** Content-Type for multiplexed framed responses (RawStream support) */\nexport const TSS_CONTENT_TYPE_FRAMED = 'application/x-tss-framed'\n\n/**\n * Frame types for binary multiplexing protocol.\n */\nexport const FrameType = {\n  /** Seroval JSON chunk (NDJSON line) */\n  JSON: 0,\n  /** Raw stream data chunk */\n  CHUNK: 1,\n  /** Raw stream end (EOF) */\n  END: 2,\n  /** Raw stream error */\n  ERROR: 3,\n} as const\n\nexport type FrameType = (typeof FrameType)[keyof typeof FrameType]\n\n/** Header size in bytes: type(1) + streamId(4) + length(4) */\nexport const FRAME_HEADER_SIZE = 9\n\n/** Current protocol version for framed responses */\nexport const TSS_FRAMED_PROTOCOL_VERSION = 1\n\n/** Full Content-Type header value with version parameter */\nexport const TSS_CONTENT_TYPE_FRAMED_VERSIONED = `${TSS_CONTENT_TYPE_FRAMED}; v=${TSS_FRAMED_PROTOCOL_VERSION}`\n\n/**\n * Parses the version parameter from a framed Content-Type header.\n * Returns undefined if no version parameter is present.\n */\nconst FRAMED_VERSION_REGEX = /;\\s*v=(\\d+)/\nexport function parseFramedProtocolVersion(\n  contentType: string,\n): number | undefined {\n  // Match \"v=<number>\" in the content-type parameters\n  const match = contentType.match(FRAMED_VERSION_REGEX)\n  return match ? parseInt(match[1]!, 10) : undefined\n}\n\n/**\n * Validates that the server's protocol version is compatible with this client.\n * Throws an error if versions are incompatible.\n */\nexport function validateFramedProtocolVersion(contentType: string): void {\n  const serverVersion = parseFramedProtocolVersion(contentType)\n  if (serverVersion === undefined) {\n    // No version specified - assume compatible (backwards compat)\n    return\n  }\n  if (serverVersion !== TSS_FRAMED_PROTOCOL_VERSION) {\n    throw new Error(\n      `Incompatible framed protocol version: server=${serverVersion}, client=${TSS_FRAMED_PROTOCOL_VERSION}. ` +\n        `Please ensure client and server are using compatible versions.`,\n    )\n  }\n}\nexport {}\n"],"names":[],"mappings":"AAAO,MAAM,uBAAuB;AAC7B,MAAM,sBAAsB,OAAO,IAAI,qBAAqB;AAC5D,MAAM,8BAA8B,OAAO;AAAA,EAChD;AACF;AAEO,MAAM,mBAAmB;AACzB,MAAM,qBAAqB;AAC3B,MAAM,gBAAgB;AAGtB,MAAM,0BAA0B;AAKhC,MAAM,YAAY;AAAA;AAAA,EAEvB,MAAM;AAAA;AAAA,EAEN,OAAO;AAAA;AAAA,EAEP,KAAK;AAAA;AAAA,EAEL,OAAO;AACT;AAKO,MAAM,oBAAoB;AAG1B,MAAM,8BAA8B;AAGpC,MAAM,oCAAoC,GAAG,uBAAuB,OAAO,2BAA2B;AAM7G,MAAM,uBAAuB;AACtB,SAAS,2BACd,aACoB;AAEpB,QAAM,QAAQ,YAAY,MAAM,oBAAoB;AACpD,SAAO,QAAQ,SAAS,MAAM,CAAC,GAAI,EAAE,IAAI;AAC3C;AAMO,SAAS,8BAA8B,aAA2B;AACvE,QAAM,gBAAgB,2BAA2B,WAAW;AAC5D,MAAI,kBAAkB,QAAW;AAE/B;AAAA,EACF;AACA,MAAI,kBAAkB,6BAA6B;AACjD,UAAM,IAAI;AAAA,MACR,gDAAgD,aAAa,YAAY,2BAA2B;AAAA,IAAA;AAAA,EAGxG;AACF;"}
+{"version":3,"file":"constants.js","sources":["../../src/constants.ts"],"sourcesContent":["export const TSS_FORMDATA_CONTEXT = '__TSS_CONTEXT'\nexport const TSS_SERVER_FUNCTION = Symbol.for('TSS_SERVER_FUNCTION')\nexport const TSS_SERVER_FUNCTION_FACTORY = Symbol.for(\n  'TSS_SERVER_FUNCTION_FACTORY',\n)\n\nexport const X_TSS_SERIALIZED = 'x-tss-serialized'\nexport const X_TSS_RAW_RESPONSE = 'x-tss-raw'\nexport const X_TSS_CONTEXT = 'x-tss-context'\n\n/** Content-Type for multiplexed framed responses (RawStream support) */\nexport const TSS_CONTENT_TYPE_FRAMED = 'application/x-tss-framed'\n\n/**\n * Frame types for binary multiplexing protocol.\n */\nexport const FrameType = {\n  /** Seroval JSON chunk (NDJSON line) */\n  JSON: 0,\n  /** Raw stream data chunk */\n  CHUNK: 1,\n  /** Raw stream end (EOF) */\n  END: 2,\n  /** Raw stream error */\n  ERROR: 3,\n} as const\n\nexport type FrameType = (typeof FrameType)[keyof typeof FrameType]\n\n/** Header size in bytes: type(1) + streamId(4) + length(4) */\nexport const FRAME_HEADER_SIZE = 9\n\n/** Current protocol version for framed responses */\nexport const TSS_FRAMED_PROTOCOL_VERSION = 1\n\n/** Full Content-Type header value with version parameter */\nexport const TSS_CONTENT_TYPE_FRAMED_VERSIONED = `${TSS_CONTENT_TYPE_FRAMED}; v=${TSS_FRAMED_PROTOCOL_VERSION}`\n\n/**\n * Parses the version parameter from a framed Content-Type header.\n * Returns undefined if no version parameter is present.\n */\nconst FRAMED_VERSION_REGEX = /;\\s*v=(\\d+)/\nexport function parseFramedProtocolVersion(\n  contentType: string,\n): number | undefined {\n  // Match \"v=<number>\" in the content-type parameters\n  const match = contentType.match(FRAMED_VERSION_REGEX)\n  return match ? parseInt(match[1]!, 10) : undefined\n}\n\n/**\n * Validates that the server's protocol version is compatible with this client.\n * Throws an error if versions are incompatible.\n */\nexport function validateFramedProtocolVersion(contentType: string): void {\n  const serverVersion = parseFramedProtocolVersion(contentType)\n  if (serverVersion === undefined) {\n    // No version specified - assume compatible (backwards compat)\n    return\n  }\n  if (serverVersion !== TSS_FRAMED_PROTOCOL_VERSION) {\n    throw new Error(\n      `Incompatible framed protocol version: server=${serverVersion}, client=${TSS_FRAMED_PROTOCOL_VERSION}. ` +\n        `Please ensure client and server are using compatible versions.`,\n    )\n  }\n}\n\n/**\n * Minimal metadata about a server function, available to client middleware.\n * Only contains the function ID since name/filename may expose server internals.\n */\nexport interface ClientFnMeta {\n  /** The unique identifier for this server function */\n  id: string\n}\n\n/**\n * Full metadata about a server function, available to server middleware.\n * This information is embedded at compile time by the TanStack Start compiler.\n */\nexport interface ServerFnMeta extends ClientFnMeta {\n  /** The original variable name of the server function (e.g., \"myServerFn\") */\n  name: string\n  /** The source file path relative to the project root (e.g., \"src/routes/api.ts\") */\n  filename: string\n}\n\nexport {}\n"],"names":[],"mappings":"AAAO,MAAM,uBAAuB;AAC7B,MAAM,sBAAsB,OAAO,IAAI,qBAAqB;AAC5D,MAAM,8BAA8B,OAAO;AAAA,EAChD;AACF;AAEO,MAAM,mBAAmB;AACzB,MAAM,qBAAqB;AAC3B,MAAM,gBAAgB;AAGtB,MAAM,0BAA0B;AAKhC,MAAM,YAAY;AAAA;AAAA,EAEvB,MAAM;AAAA;AAAA,EAEN,OAAO;AAAA;AAAA,EAEP,KAAK;AAAA;AAAA,EAEL,OAAO;AACT;AAKO,MAAM,oBAAoB;AAG1B,MAAM,8BAA8B;AAGpC,MAAM,oCAAoC,GAAG,uBAAuB,OAAO,2BAA2B;AAM7G,MAAM,uBAAuB;AACtB,SAAS,2BACd,aACoB;AAEpB,QAAM,QAAQ,YAAY,MAAM,oBAAoB;AACpD,SAAO,QAAQ,SAAS,MAAM,CAAC,GAAI,EAAE,IAAI;AAC3C;AAMO,SAAS,8BAA8B,aAA2B;AACvE,QAAM,gBAAgB,2BAA2B,WAAW;AAC5D,MAAI,kBAAkB,QAAW;AAE/B;AAAA,EACF;AACA,MAAI,kBAAkB,6BAA6B;AACjD,UAAM,IAAI;AAAA,MACR,gDAAgD,aAAa,YAAY,2BAA2B;AAAA,IAAA;AAAA,EAGxG;AACF;"}

dist/esm/createMiddleware.d.ts

 import { StartInstanceOptions } from './createStart.js';
 import { AnyServerFn, ConstrainValidator, Method } from './createServerFn.js';
+import { ClientFnMeta, ServerFnMeta } from './constants.js';
 import { AnyContext, Assign, Constrain, Expand, IntersectAssign, Register, ResolveValidatorInput, ResolveValidatorOutput, ValidateSerializableInput } from '@tanstack/router-core';
@@ -105,4 +106,3 @@ export type CreateMiddlewareFn<TRegister> = <TType extends MiddlewareType>(options?: {
     method: Method;
-    filename: string;
-    functionId: string;
+    serverFnMeta: ServerFnMeta;
     signal: AbortSignal;
@@ -123,5 +123,4 @@ }
     signal: AbortSignal;
+    serverFnMeta: ClientFnMeta;
     next: FunctionMiddlewareClientNextFn<TRegister, TMiddlewares>;
-    filename: string;
-    functionId: string;
 }
@@ -128,0 +127,0 @@ export type FunctionMiddlewareClientFnResult<TMiddlewares, TSendContext, TClientContext> = Promise<FunctionClientResultWithContext<TMiddlewares, TSendContext, TClientContext>> | FunctionClientResultWithContext<TMiddlewares, TSendContext, TClientContext>;

dist/esm/createMiddleware.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"createMiddleware.js","sources":["../../src/createMiddleware.ts"],"sourcesContent":["import type { StartInstanceOptions } from './createStart'\nimport type { AnyServerFn, ConstrainValidator, Method } from './createServerFn'\nimport type {\n  AnyContext,\n  Assign,\n  Constrain,\n  Expand,\n  IntersectAssign,\n  Register,\n  ResolveValidatorInput,\n  ResolveValidatorOutput,\n  ValidateSerializableInput,\n} from '@tanstack/router-core'\n\nexport type CreateMiddlewareFn<TRegister> = <TType extends MiddlewareType>(\n  options?: {\n    type?: TType\n  },\n  __opts?: FunctionMiddlewareOptions<\n    TRegister,\n    unknown,\n    undefined,\n    undefined,\n    undefined\n  >,\n) => CreateMiddlewareResult<TRegister, TType>\n\nexport const createMiddleware: CreateMiddlewareFn<{}> = (options, __opts) => {\n  const resolvedOptions = {\n    type: 'request',\n    ...(__opts || options),\n  }\n\n  return {\n    options: resolvedOptions,\n    middleware: (middleware: any) => {\n      return createMiddleware(\n        {} as any,\n        Object.assign(resolvedOptions, { middleware }),\n      ) as any\n    },\n    inputValidator: (inputValidator: any) => {\n      return createMiddleware(\n        {} as any,\n        Object.assign(resolvedOptions, { inputValidator }),\n      ) as any\n    },\n    client: (client: any) => {\n      return createMiddleware(\n        {} as any,\n        Object.assign(resolvedOptions, { client }),\n      ) as any\n    },\n    server: (server: any) => {\n      return createMiddleware(\n        {} as any,\n        Object.assign(resolvedOptions, { server }),\n      ) as any\n    },\n  } as any\n}\n\nexport type MiddlewareType = 'request' | 'function'\n\nexport type CreateMiddlewareResult<\n  TRegister,\n  TType extends MiddlewareType,\n> = 'request' extends TType\n  ? RequestMiddleware<TRegister>\n  : FunctionMiddleware<TRegister>\n\nexport interface FunctionMiddleware<TRegister>\n  extends FunctionMiddlewareAfterMiddleware<TRegister, unknown> {\n  middleware: <const TNewMiddlewares = undefined>(\n    middlewares: Constrain<\n      TNewMiddlewares,\n      ReadonlyArray<AnyRequestMiddleware | AnyFunctionMiddleware>\n    >,\n  ) => FunctionMiddlewareAfterMiddleware<TRegister, TNewMiddlewares>\n}\n\nexport interface FunctionMiddlewareAfterMiddleware<TRegister, TMiddlewares>\n  extends FunctionMiddlewareWithTypes<\n      TRegister,\n      TMiddlewares,\n      undefined,\n      undefined,\n      undefined,\n      undefined,\n      undefined\n    >,\n    FunctionMiddlewareServer<\n      TRegister,\n      TMiddlewares,\n      undefined,\n      undefined,\n      undefined\n    >,\n    FunctionMiddlewareClient<TRegister, TMiddlewares, undefined>,\n    FunctionMiddlewareValidator<TRegister, TMiddlewares> {}\n\nexport interface FunctionMiddlewareWithTypes<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerContext,\n  TServerSendContext,\n  TClientContext,\n  TClientSendContext,\n> {\n  '~types': FunctionMiddlewareTypes<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    TServerSendContext,\n    TClientContext,\n    TClientSendContext\n  >\n  options: FunctionMiddlewareOptions<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    TClientContext\n  >\n}\n\nexport interface FunctionMiddlewareTypes<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TServerContext,\n  in out TServerSendContext,\n  in out TClientContext,\n  in out TClientSendContext,\n> {\n  type: 'function'\n  middlewares: TMiddlewares\n  input: ResolveValidatorInput<TInputValidator>\n  allInput: IntersectAllValidatorInputs<TMiddlewares, TInputValidator>\n  output: ResolveValidatorOutput<TInputValidator>\n  allOutput: IntersectAllValidatorOutputs<TMiddlewares, TInputValidator>\n  clientContext: TClientContext\n  allClientContextBeforeNext: AssignAllClientContextBeforeNext<\n    TMiddlewares,\n    TClientContext\n  >\n  allClientContextAfterNext: AssignAllClientContextAfterNext<\n    TMiddlewares,\n    TClientContext,\n    TClientSendContext\n  >\n  serverContext: TServerContext\n  serverSendContext: TServerSendContext\n  allServerSendContext: AssignAllServerSendContext<\n    TMiddlewares,\n    TServerSendContext\n  >\n  allServerContext: AssignAllServerFnContext<\n    TRegister,\n    TMiddlewares,\n    TServerSendContext,\n    TServerContext\n  >\n  clientSendContext: TClientSendContext\n  allClientSendContext: AssignAllClientSendContext<\n    TMiddlewares,\n    TClientSendContext\n  >\n  inputValidator: TInputValidator\n}\n\n/**\n * Recursively resolve the input type produced by a sequence of middleware\n */\nexport type IntersectAllValidatorInputs<TMiddlewares, TInputValidator> =\n  unknown extends TInputValidator\n    ? TInputValidator\n    : TInputValidator extends undefined\n      ? IntersectAllMiddleware<TMiddlewares, 'allInput'>\n      : IntersectAssign<\n          IntersectAllMiddleware<TMiddlewares, 'allInput'>,\n          ResolveValidatorInput<TInputValidator>\n        >\n\nexport type IntersectAllMiddleware<\n  TMiddlewares,\n  TType extends\n    | keyof AnyFunctionMiddleware['~types']\n    | keyof AnyRequestMiddleware['~types']\n    | keyof AnyServerFn['~types'],\n  TAcc = undefined,\n> = TMiddlewares extends readonly [infer TMiddleware, ...infer TRest]\n  ? TMiddleware extends\n      | AnyFunctionMiddleware\n      | AnyRequestMiddleware\n      | AnyServerFn\n    ? IntersectAllMiddleware<\n        TRest,\n        TType,\n        IntersectAssign<\n          TAcc,\n          TMiddleware['~types'][TType & keyof TMiddleware['~types']]\n        >\n      >\n    : TAcc\n  : TAcc\n\nexport type AnyFunctionMiddleware = FunctionMiddlewareWithTypes<\n  any,\n  any,\n  any,\n  any,\n  any,\n  any,\n  any\n>\n\n/**\n * Recursively merge the output type produced by a sequence of middleware\n */\nexport type IntersectAllValidatorOutputs<TMiddlewares, TInputValidator> =\n  unknown extends TInputValidator\n    ? TInputValidator\n    : TInputValidator extends undefined\n      ? IntersectAllMiddleware<TMiddlewares, 'allOutput'>\n      : IntersectAssign<\n          IntersectAllMiddleware<TMiddlewares, 'allOutput'>,\n          Awaited<ResolveValidatorOutput<TInputValidator>>\n        >\n\n/**\n * Recursively resolve the client context type produced by a sequence of middleware\n */\nexport type AssignAllClientContextBeforeNext<\n  TMiddlewares,\n  TClientContext = undefined,\n> = unknown extends TClientContext\n  ? TClientContext\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allClientContextBeforeNext'>,\n      TClientContext\n    >\n\nexport type AssignAllMiddleware<\n  TMiddlewares,\n  TType extends\n    | keyof AnyFunctionMiddleware['~types']\n    | keyof AnyRequestMiddleware['~types']\n    | keyof AnyServerFn['~types'],\n  TAcc = undefined,\n> = TMiddlewares extends readonly [infer TMiddleware, ...infer TRest]\n  ? TMiddleware extends\n      | AnyFunctionMiddleware\n      | AnyRequestMiddleware\n      | AnyServerFn\n    ? AssignAllMiddleware<\n        TRest,\n        TType,\n        Assign<TAcc, TMiddleware['~types'][TType & keyof TMiddleware['~types']]>\n      >\n    : TAcc\n  : TAcc\n\nexport type AssignAllClientContextAfterNext<\n  TMiddlewares,\n  TClientContext = undefined,\n  TSendContext = undefined,\n> = unknown extends TClientContext\n  ? Assign<TClientContext, TSendContext>\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allClientContextAfterNext'>,\n      Assign<TClientContext, TSendContext>\n    >\n\nexport type AssignAllServerSendContext<\n  TMiddlewares,\n  TSendContext = undefined,\n> = unknown extends TSendContext\n  ? TSendContext\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allServerSendContext'>,\n      TSendContext\n    >\n\nexport type AssignAllServerRequestContext<\n  TRegister,\n  TMiddlewares,\n  TSendContext = undefined,\n  TServerContext = undefined,\n> = Assign<\n  // Fetch Request Context\n  GlobalFetchRequestContext,\n  Assign<\n    GlobalServerRequestContext<TRegister>,\n    __AssignAllServerRequestContext<TMiddlewares, TSendContext, TServerContext>\n  >\n>\n\n// export type GlobalFetchRequestContext<TRegister> = AnyContext\nexport type GlobalFetchRequestContext = Register extends {\n  server: { requestContext: infer TRequestContext }\n}\n  ? TRequestContext\n  : AnyContext\n\nexport type GlobalServerRequestContext<TRegister> = TRegister extends {\n  config: StartInstanceOptions<any, any, infer TRequestMiddlewares, any>\n}\n  ? AssignAllMiddleware<TRequestMiddlewares, 'allServerContext'>\n  : AnyContext\n\ntype __AssignAllServerRequestContext<\n  TMiddlewares,\n  TSendContext = undefined,\n  TServerContext = undefined,\n> = unknown extends TSendContext\n  ? Assign<TSendContext, TServerContext>\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allServerContext'>,\n      Assign<TSendContext, TServerContext>\n    >\n\nexport type AssignAllServerFnContext<\n  TRegister,\n  TMiddlewares,\n  TSendContext = undefined,\n  TServerContext = undefined,\n> = Assign<\n  GlobalFetchRequestContext,\n  Assign<\n    GlobalServerRequestContext<TRegister>, // TODO: This enabled global middleware\n    // type inference, but creates a circular types issue. No idea how to fix this.\n    // AnyContext,\n    Assign<\n      GlobalServerFnContext<TRegister>, // TODO: This enabled global middleware\n      // type inference, but creates a circular types issue. No idea how to fix this.\n      // AnyContext,/\n      __AssignAllServerFnContext<TMiddlewares, TSendContext, TServerContext>\n    >\n  >\n>\n\ntype GlobalServerFnContext<TRegister> = TRegister extends {\n  config: StartInstanceOptions<any, any, any, infer TFunctionMiddlewares>\n}\n  ? AssignAllMiddleware<TFunctionMiddlewares, 'allServerContext'>\n  : AnyContext\n\ntype __AssignAllServerFnContext<\n  TMiddlewares,\n  TSendContext = undefined,\n  TServerContext = undefined,\n> = unknown extends TSendContext\n  ? Assign<TSendContext, TServerContext>\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allServerContext'>,\n      Assign<TSendContext, TServerContext>\n    >\n\nexport type AssignAllClientSendContext<\n  TMiddlewares,\n  TSendContext = undefined,\n> = unknown extends TSendContext\n  ? TSendContext\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allClientSendContext'>,\n      TSendContext\n    >\n\nexport interface FunctionMiddlewareOptions<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TServerContext,\n  in out TClientContext,\n> {\n  middleware?: TMiddlewares\n  inputValidator?: ConstrainValidator<TRegister, 'GET', TInputValidator>\n  client?: FunctionMiddlewareClientFn<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    TClientContext\n  >\n  server?: FunctionMiddlewareServerFn<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    unknown,\n    unknown\n  >\n}\n\nexport type FunctionMiddlewareClientNextFn<TRegister, TMiddlewares> = <\n  TSendContext = undefined,\n  TNewClientContext = undefined,\n>(ctx?: {\n  context?: TNewClientContext\n  sendContext?: ValidateSerializableInput<TRegister, TSendContext>\n  headers?: HeadersInit\n}) => Promise<\n  FunctionClientResultWithContext<TMiddlewares, TSendContext, TNewClientContext>\n>\n\nexport interface FunctionMiddlewareServer<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerSendContext,\n  TClientContext,\n> {\n  server: <TNewServerContext = undefined, TSendContext = undefined>(\n    server: FunctionMiddlewareServerFn<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      TServerSendContext,\n      TNewServerContext,\n      TSendContext\n    >,\n  ) => FunctionMiddlewareAfterServer<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TNewServerContext,\n    TServerSendContext,\n    TClientContext,\n    TSendContext\n  >\n}\n\nexport type FunctionMiddlewareServerFn<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerSendContext,\n  TNewServerContext,\n  TSendContext,\n> = (\n  options: FunctionMiddlewareServerFnOptions<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerSendContext\n  >,\n) => FunctionMiddlewareServerFnResult<\n  TRegister,\n  TMiddlewares,\n  TServerSendContext,\n  TNewServerContext,\n  TSendContext\n>\n\nexport type FunctionMiddlewareServerNextFn<\n  TRegister,\n  TMiddlewares,\n  TServerSendContext,\n> = <TNewServerContext = undefined, TSendContext = undefined>(ctx?: {\n  context?: TNewServerContext\n  sendContext?: ValidateSerializableInput<TRegister, TSendContext>\n}) => Promise<\n  FunctionServerResultWithContext<\n    TRegister,\n    TMiddlewares,\n    TServerSendContext,\n    TNewServerContext,\n    TSendContext\n  >\n>\n\nexport type FunctionServerResultWithContext<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TServerSendContext,\n  in out TServerContext,\n  in out TSendContext,\n> = {\n  'use functions must return the result of next()': true\n  '~types': {\n    context: TServerContext\n    sendContext: TSendContext\n  }\n  context: Expand<\n    AssignAllServerFnContext<\n      TRegister,\n      TMiddlewares,\n      TServerSendContext,\n      TServerContext\n    >\n  >\n  sendContext: Expand<AssignAllClientSendContext<TMiddlewares, TSendContext>>\n}\n\nexport interface FunctionMiddlewareServerFnOptions<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TServerSendContext,\n> {\n  data: Expand<IntersectAllValidatorOutputs<TMiddlewares, TInputValidator>>\n  context: Expand<\n    AssignAllServerFnContext<TRegister, TMiddlewares, TServerSendContext>\n  >\n  next: FunctionMiddlewareServerNextFn<\n    TRegister,\n    TMiddlewares,\n    TServerSendContext\n  >\n  method: Method\n  filename: string\n  functionId: string\n  signal: AbortSignal\n}\n\nexport type FunctionMiddlewareServerFnResult<\n  TRegister,\n  TMiddlewares,\n  TServerSendContext,\n  TServerContext,\n  TSendContext,\n> =\n  | Promise<\n      FunctionServerResultWithContext<\n        TRegister,\n        TMiddlewares,\n        TServerSendContext,\n        TServerContext,\n        TSendContext\n      >\n    >\n  | FunctionServerResultWithContext<\n      TRegister,\n      TMiddlewares,\n      TServerSendContext,\n      TServerContext,\n      TSendContext\n    >\n\nexport interface FunctionMiddlewareAfterServer<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerContext,\n  TServerSendContext,\n  TClientContext,\n  TClientSendContext,\n> extends FunctionMiddlewareWithTypes<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    TServerSendContext,\n    TClientContext,\n    TClientSendContext\n  > {}\n\nexport interface FunctionMiddlewareClient<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n> {\n  client: <TSendServerContext = undefined, TNewClientContext = undefined>(\n    client: FunctionMiddlewareClientFn<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      TSendServerContext,\n      TNewClientContext\n    >,\n  ) => FunctionMiddlewareAfterClient<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TSendServerContext,\n    TNewClientContext\n  >\n}\n\nexport type FunctionMiddlewareClientFn<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TSendContext,\n  TClientContext,\n> = (\n  options: FunctionMiddlewareClientFnOptions<\n    TRegister,\n    TMiddlewares,\n    TInputValidator\n  >,\n) => FunctionMiddlewareClientFnResult<\n  TMiddlewares,\n  TSendContext,\n  TClientContext\n>\n\nexport interface FunctionMiddlewareClientFnOptions<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TInputValidator,\n> {\n  data: Expand<IntersectAllValidatorInputs<TMiddlewares, TInputValidator>>\n  context: Expand<AssignAllClientContextBeforeNext<TMiddlewares>>\n  sendContext: Expand<AssignAllServerSendContext<TMiddlewares>>\n  method: Method\n  signal: AbortSignal\n  next: FunctionMiddlewareClientNextFn<TRegister, TMiddlewares>\n  filename: string\n  functionId: string\n}\n\nexport type FunctionMiddlewareClientFnResult<\n  TMiddlewares,\n  TSendContext,\n  TClientContext,\n> =\n  | Promise<\n      FunctionClientResultWithContext<\n        TMiddlewares,\n        TSendContext,\n        TClientContext\n      >\n    >\n  | FunctionClientResultWithContext<TMiddlewares, TSendContext, TClientContext>\n\nexport type FunctionClientResultWithContext<\n  in out TMiddlewares,\n  in out TSendContext,\n  in out TClientContext,\n> = {\n  'use functions must return the result of next()': true\n  context: Expand<AssignAllClientContextAfterNext<TMiddlewares, TClientContext>>\n  sendContext: Expand<AssignAllServerSendContext<TMiddlewares, TSendContext>>\n  headers: HeadersInit\n}\n\nexport interface FunctionMiddlewareAfterClient<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerSendContext,\n  TClientContext,\n> extends FunctionMiddlewareWithTypes<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      undefined,\n      TServerSendContext,\n      TClientContext,\n      undefined\n    >,\n    FunctionMiddlewareServer<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      TServerSendContext,\n      TClientContext\n    > {}\n\nexport interface FunctionMiddlewareValidator<TRegister, TMiddlewares> {\n  inputValidator: <TNewValidator>(\n    inputValidator: ConstrainValidator<TRegister, 'GET', TNewValidator>,\n  ) => FunctionMiddlewareAfterValidator<TRegister, TMiddlewares, TNewValidator>\n}\n\nexport interface FunctionMiddlewareAfterValidator<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n> extends FunctionMiddlewareWithTypes<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      undefined,\n      undefined,\n      undefined,\n      undefined\n    >,\n    FunctionMiddlewareServer<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      undefined,\n      undefined\n    >,\n    FunctionMiddlewareClient<TRegister, TMiddlewares, TInputValidator> {}\n\nexport interface RequestMiddleware<TRegister>\n  extends RequestMiddlewareAfterMiddleware<TRegister, undefined> {\n  middleware: <const TMiddlewares = 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server functions\n  allOutput: undefined\n  middlewares: TMiddlewares\n  serverContext: TServerContext\n  allServerContext: AssignAllServerRequestContext<\n    TRegister,\n    TMiddlewares,\n    undefined,\n    TServerContext\n  >\n}\n\nexport interface RequestMiddlewareAfterMiddleware<TRegister, TMiddlewares>\n  extends RequestMiddlewareWithTypes<TRegister, TMiddlewares, undefined>,\n    RequestMiddlewareServer<TRegister, TMiddlewares> {}\n\nexport interface RequestMiddlewareServer<TRegister, TMiddlewares> {\n  server: <TServerContext = undefined>(\n    fn: RequestServerFn<TRegister, TMiddlewares, TServerContext>,\n  ) => RequestMiddlewareAfterServer<TRegister, TMiddlewares, TServerContext>\n}\n\nexport type RequestServerFn<TRegister, TMiddlewares, TServerContext> = (\n  options: RequestServerOptions<TRegister, TMiddlewares>,\n) => RequestMiddlewareServerFnResult<TRegister, TMiddlewares, TServerContext>\n\nexport interface RequestServerOptions<TRegister, TMiddlewares> {\n  request: 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+{"version":3,"file":"createMiddleware.js","sources":["../../src/createMiddleware.ts"],"sourcesContent":["import type { StartInstanceOptions } from './createStart'\nimport type { AnyServerFn, ConstrainValidator, Method } from './createServerFn'\nimport type { ClientFnMeta, ServerFnMeta } from './constants'\nimport type {\n  AnyContext,\n  Assign,\n  Constrain,\n  Expand,\n  IntersectAssign,\n  Register,\n  ResolveValidatorInput,\n  ResolveValidatorOutput,\n  ValidateSerializableInput,\n} from '@tanstack/router-core'\n\nexport type CreateMiddlewareFn<TRegister> = <TType extends MiddlewareType>(\n  options?: {\n    type?: TType\n  },\n  __opts?: FunctionMiddlewareOptions<\n    TRegister,\n    unknown,\n    undefined,\n    undefined,\n    undefined\n  >,\n) => CreateMiddlewareResult<TRegister, TType>\n\nexport const createMiddleware: CreateMiddlewareFn<{}> = (options, __opts) => {\n  const resolvedOptions = {\n    type: 'request',\n    ...(__opts || options),\n  }\n\n  return {\n    options: resolvedOptions,\n    middleware: (middleware: any) => {\n      return createMiddleware(\n        {} as any,\n        Object.assign(resolvedOptions, { middleware }),\n      ) as any\n    },\n    inputValidator: (inputValidator: any) => {\n      return createMiddleware(\n        {} as any,\n        Object.assign(resolvedOptions, { inputValidator }),\n      ) as any\n    },\n    client: (client: any) => {\n      return createMiddleware(\n        {} as any,\n        Object.assign(resolvedOptions, { client }),\n      ) as any\n    },\n    server: (server: any) => {\n      return createMiddleware(\n        {} as any,\n        Object.assign(resolvedOptions, { server }),\n      ) as any\n    },\n  } as any\n}\n\nexport type MiddlewareType = 'request' | 'function'\n\nexport type CreateMiddlewareResult<\n  TRegister,\n  TType extends MiddlewareType,\n> = 'request' extends TType\n  ? RequestMiddleware<TRegister>\n  : FunctionMiddleware<TRegister>\n\nexport interface FunctionMiddleware<TRegister>\n  extends FunctionMiddlewareAfterMiddleware<TRegister, unknown> {\n  middleware: <const TNewMiddlewares = undefined>(\n    middlewares: Constrain<\n      TNewMiddlewares,\n      ReadonlyArray<AnyRequestMiddleware | AnyFunctionMiddleware>\n    >,\n  ) => FunctionMiddlewareAfterMiddleware<TRegister, TNewMiddlewares>\n}\n\nexport interface FunctionMiddlewareAfterMiddleware<TRegister, TMiddlewares>\n  extends FunctionMiddlewareWithTypes<\n      TRegister,\n      TMiddlewares,\n      undefined,\n      undefined,\n      undefined,\n      undefined,\n      undefined\n    >,\n    FunctionMiddlewareServer<\n      TRegister,\n      TMiddlewares,\n      undefined,\n      undefined,\n      undefined\n    >,\n    FunctionMiddlewareClient<TRegister, TMiddlewares, undefined>,\n    FunctionMiddlewareValidator<TRegister, TMiddlewares> {}\n\nexport interface FunctionMiddlewareWithTypes<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerContext,\n  TServerSendContext,\n  TClientContext,\n  TClientSendContext,\n> {\n  '~types': FunctionMiddlewareTypes<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    TServerSendContext,\n    TClientContext,\n    TClientSendContext\n  >\n  options: FunctionMiddlewareOptions<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    TClientContext\n  >\n}\n\nexport interface FunctionMiddlewareTypes<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TServerContext,\n  in out TServerSendContext,\n  in out TClientContext,\n  in out TClientSendContext,\n> {\n  type: 'function'\n  middlewares: TMiddlewares\n  input: ResolveValidatorInput<TInputValidator>\n  allInput: IntersectAllValidatorInputs<TMiddlewares, TInputValidator>\n  output: ResolveValidatorOutput<TInputValidator>\n  allOutput: IntersectAllValidatorOutputs<TMiddlewares, TInputValidator>\n  clientContext: TClientContext\n  allClientContextBeforeNext: AssignAllClientContextBeforeNext<\n    TMiddlewares,\n    TClientContext\n  >\n  allClientContextAfterNext: AssignAllClientContextAfterNext<\n    TMiddlewares,\n    TClientContext,\n    TClientSendContext\n  >\n  serverContext: TServerContext\n  serverSendContext: TServerSendContext\n  allServerSendContext: AssignAllServerSendContext<\n    TMiddlewares,\n    TServerSendContext\n  >\n  allServerContext: AssignAllServerFnContext<\n    TRegister,\n    TMiddlewares,\n    TServerSendContext,\n    TServerContext\n  >\n  clientSendContext: TClientSendContext\n  allClientSendContext: AssignAllClientSendContext<\n    TMiddlewares,\n    TClientSendContext\n  >\n  inputValidator: TInputValidator\n}\n\n/**\n * Recursively resolve the input type produced by a sequence of middleware\n */\nexport type IntersectAllValidatorInputs<TMiddlewares, TInputValidator> =\n  unknown extends TInputValidator\n    ? TInputValidator\n    : TInputValidator extends undefined\n      ? IntersectAllMiddleware<TMiddlewares, 'allInput'>\n      : IntersectAssign<\n          IntersectAllMiddleware<TMiddlewares, 'allInput'>,\n          ResolveValidatorInput<TInputValidator>\n        >\n\nexport type IntersectAllMiddleware<\n  TMiddlewares,\n  TType extends\n    | keyof AnyFunctionMiddleware['~types']\n    | keyof AnyRequestMiddleware['~types']\n    | keyof AnyServerFn['~types'],\n  TAcc = undefined,\n> = TMiddlewares extends readonly [infer TMiddleware, ...infer TRest]\n  ? TMiddleware extends\n      | AnyFunctionMiddleware\n      | AnyRequestMiddleware\n      | AnyServerFn\n    ? IntersectAllMiddleware<\n        TRest,\n        TType,\n        IntersectAssign<\n          TAcc,\n          TMiddleware['~types'][TType & keyof TMiddleware['~types']]\n        >\n      >\n    : TAcc\n  : TAcc\n\nexport type AnyFunctionMiddleware = FunctionMiddlewareWithTypes<\n  any,\n  any,\n  any,\n  any,\n  any,\n  any,\n  any\n>\n\n/**\n * Recursively merge the output type produced by a sequence of middleware\n */\nexport type IntersectAllValidatorOutputs<TMiddlewares, TInputValidator> =\n  unknown extends TInputValidator\n    ? TInputValidator\n    : TInputValidator extends undefined\n      ? IntersectAllMiddleware<TMiddlewares, 'allOutput'>\n      : IntersectAssign<\n          IntersectAllMiddleware<TMiddlewares, 'allOutput'>,\n          Awaited<ResolveValidatorOutput<TInputValidator>>\n        >\n\n/**\n * Recursively resolve the client context type produced by a sequence of middleware\n */\nexport type AssignAllClientContextBeforeNext<\n  TMiddlewares,\n  TClientContext = undefined,\n> = unknown extends TClientContext\n  ? TClientContext\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allClientContextBeforeNext'>,\n      TClientContext\n    >\n\nexport type AssignAllMiddleware<\n  TMiddlewares,\n  TType extends\n    | keyof AnyFunctionMiddleware['~types']\n    | keyof AnyRequestMiddleware['~types']\n    | keyof AnyServerFn['~types'],\n  TAcc = undefined,\n> = TMiddlewares extends readonly [infer TMiddleware, ...infer TRest]\n  ? TMiddleware extends\n      | AnyFunctionMiddleware\n      | AnyRequestMiddleware\n      | AnyServerFn\n    ? AssignAllMiddleware<\n        TRest,\n        TType,\n        Assign<TAcc, TMiddleware['~types'][TType & keyof TMiddleware['~types']]>\n      >\n    : TAcc\n  : TAcc\n\nexport type AssignAllClientContextAfterNext<\n  TMiddlewares,\n  TClientContext = undefined,\n  TSendContext = undefined,\n> = unknown extends TClientContext\n  ? Assign<TClientContext, TSendContext>\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allClientContextAfterNext'>,\n      Assign<TClientContext, TSendContext>\n    >\n\nexport type AssignAllServerSendContext<\n  TMiddlewares,\n  TSendContext = undefined,\n> = unknown extends TSendContext\n  ? TSendContext\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allServerSendContext'>,\n      TSendContext\n    >\n\nexport type AssignAllServerRequestContext<\n  TRegister,\n  TMiddlewares,\n  TSendContext = undefined,\n  TServerContext = undefined,\n> = Assign<\n  // Fetch Request Context\n  GlobalFetchRequestContext,\n  Assign<\n    GlobalServerRequestContext<TRegister>,\n    __AssignAllServerRequestContext<TMiddlewares, TSendContext, TServerContext>\n  >\n>\n\n// export type GlobalFetchRequestContext<TRegister> = AnyContext\nexport type GlobalFetchRequestContext = Register extends {\n  server: { requestContext: infer TRequestContext }\n}\n  ? TRequestContext\n  : AnyContext\n\nexport type GlobalServerRequestContext<TRegister> = TRegister extends {\n  config: StartInstanceOptions<any, any, infer TRequestMiddlewares, any>\n}\n  ? AssignAllMiddleware<TRequestMiddlewares, 'allServerContext'>\n  : AnyContext\n\ntype __AssignAllServerRequestContext<\n  TMiddlewares,\n  TSendContext = undefined,\n  TServerContext = undefined,\n> = unknown extends TSendContext\n  ? Assign<TSendContext, TServerContext>\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allServerContext'>,\n      Assign<TSendContext, TServerContext>\n    >\n\nexport type AssignAllServerFnContext<\n  TRegister,\n  TMiddlewares,\n  TSendContext = undefined,\n  TServerContext = undefined,\n> = Assign<\n  GlobalFetchRequestContext,\n  Assign<\n    GlobalServerRequestContext<TRegister>, // TODO: This enabled global middleware\n    // type inference, but creates a circular types issue. No idea how to fix this.\n    // AnyContext,\n    Assign<\n      GlobalServerFnContext<TRegister>, // TODO: This enabled global middleware\n      // type inference, but creates a circular types issue. No idea how to fix this.\n      // AnyContext,/\n      __AssignAllServerFnContext<TMiddlewares, TSendContext, TServerContext>\n    >\n  >\n>\n\ntype GlobalServerFnContext<TRegister> = TRegister extends {\n  config: StartInstanceOptions<any, any, any, infer TFunctionMiddlewares>\n}\n  ? AssignAllMiddleware<TFunctionMiddlewares, 'allServerContext'>\n  : AnyContext\n\ntype __AssignAllServerFnContext<\n  TMiddlewares,\n  TSendContext = undefined,\n  TServerContext = undefined,\n> = unknown extends TSendContext\n  ? Assign<TSendContext, TServerContext>\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allServerContext'>,\n      Assign<TSendContext, TServerContext>\n    >\n\nexport type AssignAllClientSendContext<\n  TMiddlewares,\n  TSendContext = undefined,\n> = unknown extends TSendContext\n  ? TSendContext\n  : Assign<\n      AssignAllMiddleware<TMiddlewares, 'allClientSendContext'>,\n      TSendContext\n    >\n\nexport interface FunctionMiddlewareOptions<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TServerContext,\n  in out TClientContext,\n> {\n  middleware?: TMiddlewares\n  inputValidator?: ConstrainValidator<TRegister, 'GET', TInputValidator>\n  client?: FunctionMiddlewareClientFn<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    TClientContext\n  >\n  server?: FunctionMiddlewareServerFn<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    unknown,\n    unknown\n  >\n}\n\nexport type FunctionMiddlewareClientNextFn<TRegister, TMiddlewares> = <\n  TSendContext = undefined,\n  TNewClientContext = undefined,\n>(ctx?: {\n  context?: TNewClientContext\n  sendContext?: ValidateSerializableInput<TRegister, TSendContext>\n  headers?: HeadersInit\n}) => Promise<\n  FunctionClientResultWithContext<TMiddlewares, TSendContext, TNewClientContext>\n>\n\nexport interface FunctionMiddlewareServer<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerSendContext,\n  TClientContext,\n> {\n  server: <TNewServerContext = undefined, TSendContext = undefined>(\n    server: FunctionMiddlewareServerFn<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      TServerSendContext,\n      TNewServerContext,\n      TSendContext\n    >,\n  ) => FunctionMiddlewareAfterServer<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TNewServerContext,\n    TServerSendContext,\n    TClientContext,\n    TSendContext\n  >\n}\n\nexport type FunctionMiddlewareServerFn<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerSendContext,\n  TNewServerContext,\n  TSendContext,\n> = (\n  options: FunctionMiddlewareServerFnOptions<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerSendContext\n  >,\n) => FunctionMiddlewareServerFnResult<\n  TRegister,\n  TMiddlewares,\n  TServerSendContext,\n  TNewServerContext,\n  TSendContext\n>\n\nexport type FunctionMiddlewareServerNextFn<\n  TRegister,\n  TMiddlewares,\n  TServerSendContext,\n> = <TNewServerContext = undefined, TSendContext = undefined>(ctx?: {\n  context?: TNewServerContext\n  sendContext?: ValidateSerializableInput<TRegister, TSendContext>\n}) => Promise<\n  FunctionServerResultWithContext<\n    TRegister,\n    TMiddlewares,\n    TServerSendContext,\n    TNewServerContext,\n    TSendContext\n  >\n>\n\nexport type FunctionServerResultWithContext<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TServerSendContext,\n  in out TServerContext,\n  in out TSendContext,\n> = {\n  'use functions must return the result of next()': true\n  '~types': {\n    context: TServerContext\n    sendContext: TSendContext\n  }\n  context: Expand<\n    AssignAllServerFnContext<\n      TRegister,\n      TMiddlewares,\n      TServerSendContext,\n      TServerContext\n    >\n  >\n  sendContext: Expand<AssignAllClientSendContext<TMiddlewares, TSendContext>>\n}\n\nexport interface FunctionMiddlewareServerFnOptions<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TServerSendContext,\n> {\n  data: Expand<IntersectAllValidatorOutputs<TMiddlewares, TInputValidator>>\n  context: Expand<\n    AssignAllServerFnContext<TRegister, TMiddlewares, TServerSendContext>\n  >\n  next: FunctionMiddlewareServerNextFn<\n    TRegister,\n    TMiddlewares,\n    TServerSendContext\n  >\n  method: Method\n  serverFnMeta: ServerFnMeta\n  signal: AbortSignal\n}\n\nexport type FunctionMiddlewareServerFnResult<\n  TRegister,\n  TMiddlewares,\n  TServerSendContext,\n  TServerContext,\n  TSendContext,\n> =\n  | Promise<\n      FunctionServerResultWithContext<\n        TRegister,\n        TMiddlewares,\n        TServerSendContext,\n        TServerContext,\n        TSendContext\n      >\n    >\n  | FunctionServerResultWithContext<\n      TRegister,\n      TMiddlewares,\n      TServerSendContext,\n      TServerContext,\n      TSendContext\n    >\n\nexport interface FunctionMiddlewareAfterServer<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerContext,\n  TServerSendContext,\n  TClientContext,\n  TClientSendContext,\n> extends FunctionMiddlewareWithTypes<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TServerContext,\n    TServerSendContext,\n    TClientContext,\n    TClientSendContext\n  > {}\n\nexport interface FunctionMiddlewareClient<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n> {\n  client: <TSendServerContext = undefined, TNewClientContext = undefined>(\n    client: FunctionMiddlewareClientFn<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      TSendServerContext,\n      TNewClientContext\n    >,\n  ) => FunctionMiddlewareAfterClient<\n    TRegister,\n    TMiddlewares,\n    TInputValidator,\n    TSendServerContext,\n    TNewClientContext\n  >\n}\n\nexport type FunctionMiddlewareClientFn<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TSendContext,\n  TClientContext,\n> = (\n  options: FunctionMiddlewareClientFnOptions<\n    TRegister,\n    TMiddlewares,\n    TInputValidator\n  >,\n) => FunctionMiddlewareClientFnResult<\n  TMiddlewares,\n  TSendContext,\n  TClientContext\n>\n\nexport interface FunctionMiddlewareClientFnOptions<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TInputValidator,\n> {\n  data: Expand<IntersectAllValidatorInputs<TMiddlewares, TInputValidator>>\n  context: Expand<AssignAllClientContextBeforeNext<TMiddlewares>>\n  sendContext: Expand<AssignAllServerSendContext<TMiddlewares>>\n  method: Method\n  signal: AbortSignal\n  serverFnMeta: ClientFnMeta\n  next: FunctionMiddlewareClientNextFn<TRegister, TMiddlewares>\n}\n\nexport type FunctionMiddlewareClientFnResult<\n  TMiddlewares,\n  TSendContext,\n  TClientContext,\n> =\n  | Promise<\n      FunctionClientResultWithContext<\n        TMiddlewares,\n        TSendContext,\n        TClientContext\n      >\n    >\n  | FunctionClientResultWithContext<TMiddlewares, TSendContext, TClientContext>\n\nexport type FunctionClientResultWithContext<\n  in out TMiddlewares,\n  in out TSendContext,\n  in out TClientContext,\n> = {\n  'use functions must return the result of next()': true\n  context: Expand<AssignAllClientContextAfterNext<TMiddlewares, TClientContext>>\n  sendContext: Expand<AssignAllServerSendContext<TMiddlewares, TSendContext>>\n  headers: HeadersInit\n}\n\nexport interface FunctionMiddlewareAfterClient<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n  TServerSendContext,\n  TClientContext,\n> extends FunctionMiddlewareWithTypes<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      undefined,\n      TServerSendContext,\n      TClientContext,\n      undefined\n    >,\n    FunctionMiddlewareServer<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      TServerSendContext,\n      TClientContext\n    > {}\n\nexport interface FunctionMiddlewareValidator<TRegister, TMiddlewares> {\n  inputValidator: <TNewValidator>(\n    inputValidator: ConstrainValidator<TRegister, 'GET', TNewValidator>,\n  ) => FunctionMiddlewareAfterValidator<TRegister, TMiddlewares, TNewValidator>\n}\n\nexport interface FunctionMiddlewareAfterValidator<\n  TRegister,\n  TMiddlewares,\n  TInputValidator,\n> extends FunctionMiddlewareWithTypes<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      undefined,\n      undefined,\n      undefined,\n      undefined\n    >,\n    FunctionMiddlewareServer<\n      TRegister,\n      TMiddlewares,\n      TInputValidator,\n      undefined,\n      undefined\n    >,\n    FunctionMiddlewareClient<TRegister, TMiddlewares, TInputValidator> {}\n\nexport interface RequestMiddleware<TRegister>\n  extends RequestMiddlewareAfterMiddleware<TRegister, undefined> {\n  middleware: <const TMiddlewares = undefined>(\n    middlewares: Constrain<TMiddlewares, ReadonlyArray<AnyRequestMiddleware>>,\n  ) => RequestMiddlewareAfterMiddleware<TRegister, TMiddlewares>\n}\n\nexport type AnyRequestMiddleware = RequestMiddlewareWithTypes<any, any, any>\n\nexport interface RequestMiddlewareWithTypes<\n  TRegister,\n  TMiddlewares,\n  TServerContext,\n> {\n  '~types': RequestMiddlewareTypes<TRegister, TMiddlewares, TServerContext>\n  options: RequestMiddlewareOptions<TRegister, TMiddlewares, TServerContext>\n}\n\nexport interface RequestMiddlewareOptions<\n  in out TRegister,\n  in out TMiddlewares,\n  in out TServerContext,\n> {\n  middleware?: TMiddlewares\n  server?: RequestServerFn<TRegister, TMiddlewares, TServerContext>\n}\nexport interface RequestMiddlewareTypes<\n  TRegister,\n  TMiddlewares,\n  TServerContext,\n> {\n  type: 'request'\n  // this only exists so we can use request middlewares in server functions\n  allInput: undefined\n  // this only exists so we can use request middlewares in server functions\n  allOutput: undefined\n  middlewares: TMiddlewares\n  serverContext: TServerContext\n  allServerContext: AssignAllServerRequestContext<\n    TRegister,\n    TMiddlewares,\n    undefined,\n    TServerContext\n  >\n}\n\nexport interface RequestMiddlewareAfterMiddleware<TRegister, TMiddlewares>\n  extends RequestMiddlewareWithTypes<TRegister, TMiddlewares, undefined>,\n    RequestMiddlewareServer<TRegister, TMiddlewares> {}\n\nexport interface RequestMiddlewareServer<TRegister, TMiddlewares> {\n  server: <TServerContext = undefined>(\n    fn: RequestServerFn<TRegister, TMiddlewares, TServerContext>,\n  ) => RequestMiddlewareAfterServer<TRegister, TMiddlewares, TServerContext>\n}\n\nexport type RequestServerFn<TRegister, TMiddlewares, TServerContext> = (\n  options: RequestServerOptions<TRegister, TMiddlewares>,\n) => RequestMiddlewareServerFnResult<TRegister, TMiddlewares, TServerContext>\n\nexport interface RequestServerOptions<TRegister, TMiddlewares> {\n  request: Request\n  pathname: string\n  context: Expand<AssignAllServerRequestContext<TRegister, TMiddlewares>>\n  next: RequestServerNextFn<TRegister, TMiddlewares>\n}\n\nexport type RequestServerNextFn<TRegister, TMiddlewares> = <\n  TServerContext = undefined,\n>(\n  options?: RequestServerNextFnOptions<TServerContext>,\n) => RequestServerNextFnResult<TRegister, TMiddlewares, TServerContext>\n\nexport interface RequestServerNextFnOptions<TServerContext> {\n  context?: TServerContext\n}\n\nexport type RequestServerNextFnResult<TRegister, TMiddlewares, TServerContext> =\n\n    | Promise<RequestServerResult<TRegister, TMiddlewares, TServerContext>>\n    | RequestServerResult<TRegister, TMiddlewares, TServerContext>\n\nexport type RequestMiddlewareServerFnResult<\n  TRegister,\n  TMiddlewares,\n  TServerContext,\n> =\n  | Promise<\n      RequestServerResult<TRegister, TMiddlewares, TServerContext> | Response\n    >\n  | RequestServerResult<TRegister, TMiddlewares, TServerContext>\n  | Response\n\nexport interface RequestServerResult<TRegister, TMiddlewares, TServerContext> {\n  request: Request\n  pathname: string\n  context: Expand<\n    AssignAllServerRequestContext<\n      TRegister,\n      TMiddlewares,\n      undefined,\n      TServerContext\n    >\n  >\n  response: Response\n}\n\nexport interface RequestMiddlewareAfterServer<\n  TRegister,\n  TMiddlewares,\n  TServerContext,\n> extends RequestMiddlewareWithTypes<TRegister, TMiddlewares, TServerContext> 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dist/esm/createServerFn.d.ts

@@ -1,2 +0,2 @@
-import { TSS_SERVER_FUNCTION_FACTORY, TSS_SERVER_FUNCTION } from './constants.js';
+import { TSS_SERVER_FUNCTION_FACTORY, ClientFnMeta, ServerFnMeta, TSS_SERVER_FUNCTION } from './constants.js';
 import { AnyValidator, Constrain, Expand, Register, RegisteredSerializableInput, ResolveValidatorInput, ValidateSerializable, ValidateSerializableInput, Validator } from '@tanstack/router-core';
@@ -58,2 +58,3 @@ import { AnyFunctionMiddleware, AnyRequestMiddleware, AssignAllServerFnContext, IntersectAllValidatorInputs, IntersectAllValidatorOutputs } from './createMiddleware.js';
     url: string;
+    serverFnMeta: ServerFnMeta;
 };
@@ -66,3 +67,2 @@ export type ServerFnBaseOptions<TRegister, TMethod extends Method = 'GET', TResponse = unknown, TMiddlewares = unknown, TInputValidator = unknown> = {
     serverFn?: ServerFn<TRegister, TMethod, TMiddlewares, TInputValidator, TResponse>;
-    functionId: string;
 };
@@ -118,3 +118,3 @@ export type ValidateValidatorInput<TRegister, TMethod extends Method, TInputValidator> = TMethod extends 'POST' ? ResolveValidatorInput<TInputValidator> extends FormData ? ResolveValidatorInput<TInputValidator> : ValidateSerializable<ResolveValidatorInput<TInputValidator>, RegisteredSerializableInput<TRegister>> : ValidateSerializable<ResolveValidatorInput<TInputValidator>, RegisteredSerializableInput<TRegister>>;
     context?: any;
-    functionId: string;
+    serverFnMeta: ClientFnMeta;
 };
@@ -121,0 +121,0 @@ export type ServerFnMiddlewareResult = ServerFnMiddlewareOptions & {

dist/esm/createServerFn.js

@@ -72,2 +72,7 @@ import { mergeHeaders } from "@tanstack/router-core/ssr/client";
               ...opts,
+              // Ensure we use the full serverFnMeta from the provider file's extractedFn
+              // (which has id, name, filename) rather than the partial one from SSR/client
+              // callers (which only has id)
+              serverFnMeta: extractedFn.serverFnMeta,
+              // Use safeObjectMerge for opts.context which comes from client
               context: safeObjectMerge(
@@ -74,0 +79,0 @@ serverContextAfterGlobalMiddlewares,

dist/esm/createServerFn.js.map

@@ -1,1 +0,1 @@
-{"version":3,"file":"createServerFn.js","sources":["../../src/createServerFn.ts"],"sourcesContent":["import { mergeHeaders } from '@tanstack/router-core/ssr/client'\n\nimport { isRedirect, parseRedirect } from '@tanstack/router-core'\nimport { TSS_SERVER_FUNCTION_FACTORY } from './constants'\nimport { getStartOptions } from './getStartOptions'\nimport { getStartContextServerOnly } from './getStartContextServerOnly'\nimport { createNullProtoObject, safeObjectMerge } from './safeObjectMerge'\nimport type {\n  AnyValidator,\n  Constrain,\n  Expand,\n  Register,\n  RegisteredSerializableInput,\n  ResolveValidatorInput,\n  ValidateSerializable,\n  ValidateSerializableInput,\n  Validator,\n} from '@tanstack/router-core'\nimport type { TSS_SERVER_FUNCTION } from './constants'\nimport type {\n  AnyFunctionMiddleware,\n  AnyRequestMiddleware,\n  AssignAllServerFnContext,\n  FunctionMiddlewareClientFnResult,\n  FunctionMiddlewareServerFnResult,\n  IntersectAllValidatorInputs,\n  IntersectAllValidatorOutputs,\n} from './createMiddleware'\n\ntype TODO = any\n\nexport type CreateServerFn<TRegister> = <\n  TMethod extends Method,\n  TResponse = unknown,\n  TMiddlewares = undefined,\n  TInputValidator = undefined,\n>(\n  options?: {\n    method?: TMethod\n  },\n  __opts?: ServerFnBaseOptions<\n    TRegister,\n    TMethod,\n    TResponse,\n    TMiddlewares,\n    TInputValidator\n  >,\n) => ServerFnBuilder<TRegister, TMethod>\n\nexport const createServerFn: CreateServerFn<Register> = (options, __opts) => {\n  const resolvedOptions = (__opts || options || {}) as ServerFnBaseOptions<\n    any,\n    any,\n    any,\n    any,\n    any\n  >\n\n  if (typeof resolvedOptions.method === 'undefined') {\n    resolvedOptions.method = 'GET' as Method\n  }\n\n  const res: ServerFnBuilder<Register, Method> = {\n    options: resolvedOptions as any,\n    middleware: (middleware) => {\n      // multiple calls to `middleware()` merge the middlewares with the previously supplied ones\n      // this is primarily useful for letting users create their own abstractions on top of `createServerFn`\n\n      const newMiddleware = [...(resolvedOptions.middleware || [])]\n      middleware.map((m) => {\n        if (TSS_SERVER_FUNCTION_FACTORY in m) {\n          if (m.options.middleware) {\n            newMiddleware.push(...m.options.middleware)\n          }\n        } else {\n          newMiddleware.push(m)\n        }\n      })\n\n      const newOptions = {\n        ...resolvedOptions,\n        middleware: newMiddleware,\n      }\n      const res = createServerFn(undefined, newOptions) as any\n      res[TSS_SERVER_FUNCTION_FACTORY] = true\n      return res\n    },\n    inputValidator: (inputValidator) => {\n      const newOptions = { ...resolvedOptions, inputValidator }\n      return createServerFn(undefined, newOptions) as any\n    },\n    handler: (...args) => {\n      // This function signature changes due to AST transformations\n      // in the babel plugin. We need to cast it to the correct\n      // function signature post-transformation\n      const [extractedFn, serverFn] = args as unknown as [\n        CompiledFetcherFn<Register, any>,\n        ServerFn<Register, Method, any, any, any>,\n      ]\n\n      // Keep the original function around so we can use it\n      // in the server environment\n      const newOptions = { ...resolvedOptions, extractedFn, serverFn }\n\n      const resolvedMiddleware = [\n        ...(newOptions.middleware || []),\n        serverFnBaseToMiddleware(newOptions),\n      ]\n\n      // We want to make sure the new function has the same\n      // properties as the original function\n\n      return Object.assign(\n        async (opts?: CompiledFetcherFnOptions) => {\n          // Start by executing the client-side middleware chain\n          const result = await executeMiddleware(resolvedMiddleware, 'client', {\n            ...extractedFn,\n            ...newOptions,\n            data: opts?.data as any,\n            headers: opts?.headers,\n            signal: opts?.signal,\n            context: createNullProtoObject(),\n          })\n\n          const redirect = parseRedirect(result.error)\n          if (redirect) {\n            throw redirect\n          }\n\n          if (result.error) throw result.error\n          return result.result\n        },\n        {\n          // This copies over the URL, function ID\n          ...extractedFn,\n          // The extracted function on the server-side calls\n          // this function\n          __executeServer: async (opts: any, signal: AbortSignal) => {\n            const startContext = getStartContextServerOnly()\n            const serverContextAfterGlobalMiddlewares =\n              startContext.contextAfterGlobalMiddlewares\n            // Use safeObjectMerge for opts.context which comes from client\n            const ctx = {\n              ...extractedFn,\n              ...opts,\n              context: safeObjectMerge(\n                serverContextAfterGlobalMiddlewares,\n                opts.context,\n              ),\n              signal,\n              request: startContext.request,\n            }\n\n            const result = await executeMiddleware(\n              resolvedMiddleware,\n              'server',\n              ctx,\n            ).then((d) => ({\n              // Only send the result and sendContext back to the client\n              result: d.result,\n              error: d.error,\n              context: d.sendContext,\n            }))\n\n            return result\n          },\n        },\n      ) as any\n    },\n  } as ServerFnBuilder<Register, Method>\n  const fun = (options?: { method?: Method }) => {\n    const newOptions = {\n      ...resolvedOptions,\n      ...options,\n    }\n    return createServerFn(undefined, newOptions) as any\n  }\n  return Object.assign(fun, res) as any\n}\n\nexport async function executeMiddleware(\n  middlewares: Array<AnyFunctionMiddleware | AnyRequestMiddleware>,\n  env: 'client' | 'server',\n  opts: ServerFnMiddlewareOptions,\n): Promise<ServerFnMiddlewareResult> {\n  const globalMiddlewares = getStartOptions()?.functionMiddleware || []\n  let flattenedMiddlewares = flattenMiddlewares([\n    ...globalMiddlewares,\n    ...middlewares,\n  ])\n\n  // On server, filter out middlewares that already executed in the request phase\n  // to prevent duplicate execution (issue #5239)\n  if (env === 'server') {\n    const startContext = getStartContextServerOnly({ throwIfNotFound: false })\n    if (startContext?.executedRequestMiddlewares) {\n      flattenedMiddlewares = flattenedMiddlewares.filter(\n        (m) => !startContext.executedRequestMiddlewares.has(m),\n      )\n    }\n  }\n\n  const callNextMiddleware: NextFn = async (ctx) => {\n    // Get the next middleware\n    const nextMiddleware = flattenedMiddlewares.shift()\n\n    // If there are no more middlewares, return the context\n    if (!nextMiddleware) {\n      return ctx\n    }\n\n    // Execute the middleware\n    try {\n      if (\n        'inputValidator' in nextMiddleware.options &&\n        nextMiddleware.options.inputValidator &&\n        env === 'server'\n      ) {\n        // Execute the middleware's input function\n        ctx.data = await execValidator(\n          nextMiddleware.options.inputValidator,\n          ctx.data,\n        )\n      }\n\n      let middlewareFn: MiddlewareFn | undefined = undefined\n      if (env === 'client') {\n        if ('client' in nextMiddleware.options) {\n          middlewareFn = nextMiddleware.options.client as\n            | MiddlewareFn\n            | undefined\n        }\n      }\n      // env === 'server'\n      else if ('server' in nextMiddleware.options) {\n        middlewareFn = nextMiddleware.options.server as MiddlewareFn | undefined\n      }\n\n      if (middlewareFn) {\n        const userNext = async (\n          userCtx: ServerFnMiddlewareResult | undefined = {} as any,\n        ) => {\n          // Return the next middleware\n          // Use safeObjectMerge for context objects to prevent prototype pollution\n          const nextCtx = {\n            ...ctx,\n            ...userCtx,\n            context: safeObjectMerge(ctx.context, userCtx.context),\n            sendContext: safeObjectMerge(ctx.sendContext, userCtx.sendContext),\n            headers: mergeHeaders(ctx.headers, userCtx.headers),\n            result:\n              userCtx.result !== undefined\n                ? userCtx.result\n                : userCtx instanceof Response\n                  ? userCtx\n                  : (ctx as any).result,\n            error: userCtx.error ?? (ctx as any).error,\n          }\n\n          try {\n            return await callNextMiddleware(nextCtx)\n          } catch (error: any) {\n            return {\n              ...nextCtx,\n              error,\n            }\n          }\n        }\n\n        // Execute the middleware\n        const result = await middlewareFn({\n          ...ctx,\n          next: userNext as any,\n        } as any)\n\n        // If result is NOT a ctx object, we need to return it as\n        // the { result }\n        if (isRedirect(result)) {\n          return {\n            ...ctx,\n            error: result,\n          }\n        }\n\n        if (result instanceof Response) {\n          return {\n            ...ctx,\n            result,\n          }\n        }\n\n        if (!(result as any)) {\n          throw new Error(\n            'User middleware returned undefined. You must call next() or return a result in your middlewares.',\n          )\n        }\n\n        return result\n      }\n\n      return callNextMiddleware(ctx)\n    } catch (error: any) {\n      return {\n        ...ctx,\n        error,\n      }\n    }\n  }\n\n  // Start the middleware chain\n  return callNextMiddleware({\n    ...opts,\n    headers: opts.headers || {},\n    sendContext: opts.sendContext || {},\n    context: opts.context || createNullProtoObject(),\n  })\n}\n\nexport type CompiledFetcherFnOptions = {\n  method: Method\n  data: unknown\n  headers?: HeadersInit\n  signal?: AbortSignal\n  context?: any\n}\n\nexport type Fetcher<TMiddlewares, TInputValidator, TResponse> =\n  undefined extends IntersectAllValidatorInputs<TMiddlewares, TInputValidator>\n    ? OptionalFetcher<TMiddlewares, TInputValidator, TResponse>\n    : RequiredFetcher<TMiddlewares, TInputValidator, TResponse>\n\nexport interface FetcherBase {\n  [TSS_SERVER_FUNCTION]: true\n  url: string\n  __executeServer: (opts: {\n    method: Method\n    data: unknown\n    headers?: HeadersInit\n    context?: any\n    signal: AbortSignal\n  }) => Promise<unknown>\n}\n\nexport interface OptionalFetcher<TMiddlewares, TInputValidator, TResponse>\n  extends FetcherBase {\n  (\n    options?: OptionalFetcherDataOptions<TMiddlewares, TInputValidator>,\n  ): Promise<Awaited<TResponse>>\n}\n\nexport interface RequiredFetcher<TMiddlewares, TInputValidator, TResponse>\n  extends FetcherBase {\n  (\n    opts: RequiredFetcherDataOptions<TMiddlewares, TInputValidator>,\n  ): Promise<Awaited<TResponse>>\n}\n\nexport type FetcherBaseOptions = {\n  headers?: HeadersInit\n  signal?: AbortSignal\n}\n\nexport interface OptionalFetcherDataOptions<TMiddlewares, TInputValidator>\n  extends FetcherBaseOptions {\n  data?: Expand<IntersectAllValidatorInputs<TMiddlewares, TInputValidator>>\n}\n\nexport interface RequiredFetcherDataOptions<TMiddlewares, TInputValidator>\n  extends FetcherBaseOptions {\n  data: Expand<IntersectAllValidatorInputs<TMiddlewares, TInputValidator>>\n}\n\nexport type RscStream<T> = {\n  __cacheState: T\n}\n\nexport type Method = 'GET' | 'POST'\n\nexport type ServerFnReturnType<TRegister, TResponse> =\n  TResponse extends PromiseLike<infer U>\n    ? Promise<ServerFnReturnType<TRegister, U>>\n    : TResponse extends Response\n      ? TResponse\n      : ValidateSerializableInput<TRegister, TResponse>\n\nexport type ServerFn<\n  TRegister,\n  TMethod,\n  TMiddlewares,\n  TInputValidator,\n  TResponse,\n> = (\n  ctx: ServerFnCtx<TRegister, TMiddlewares, TInputValidator>,\n) => ServerFnReturnType<TRegister, TResponse>\n\nexport interface ServerFnCtx<TRegister, TMiddlewares, TInputValidator> {\n  data: Expand<IntersectAllValidatorOutputs<TMiddlewares, TInputValidator>>\n  context: Expand<AssignAllServerFnContext<TRegister, TMiddlewares, {}>>\n  signal: AbortSignal\n}\n\nexport type CompiledFetcherFn<TRegister, TResponse> = {\n  (\n    opts: CompiledFetcherFnOptions & ServerFnBaseOptions<TRegister, Method>,\n  ): Promise<TResponse>\n  url: string\n}\n\nexport type ServerFnBaseOptions<\n  TRegister,\n  TMethod extends Method = 'GET',\n  TResponse = unknown,\n  TMiddlewares = unknown,\n  TInputValidator = unknown,\n> = {\n  method: TMethod\n  middleware?: Constrain<\n    TMiddlewares,\n    ReadonlyArray<AnyFunctionMiddleware | AnyRequestMiddleware>\n  >\n  inputValidator?: ConstrainValidator<TRegister, TMethod, TInputValidator>\n  extractedFn?: CompiledFetcherFn<TRegister, TResponse>\n  serverFn?: ServerFn<\n    TRegister,\n    TMethod,\n    TMiddlewares,\n    TInputValidator,\n    TResponse\n  >\n  functionId: string\n}\n\nexport type ValidateValidatorInput<\n  TRegister,\n  TMethod extends Method,\n  TInputValidator,\n> = TMethod extends 'POST'\n  ? ResolveValidatorInput<TInputValidator> extends FormData\n    ? ResolveValidatorInput<TInputValidator>\n    : ValidateSerializable<\n        ResolveValidatorInput<TInputValidator>,\n        RegisteredSerializableInput<TRegister>\n      >\n  : ValidateSerializable<\n      ResolveValidatorInput<TInputValidator>,\n      RegisteredSerializableInput<TRegister>\n    >\n\nexport type ValidateValidator<\n  TRegister,\n  TMethod extends Method,\n  TInputValidator,\n> =\n  ValidateValidatorInput<\n    TRegister,\n    TMethod,\n    TInputValidator\n  > extends infer TInput\n    ? Validator<TInput, any>\n    : never\n\nexport type ConstrainValidator<\n  TRegister,\n  TMethod extends Method,\n  TInputValidator,\n> =\n  | (unknown extends TInputValidator\n      ? TInputValidator\n      : ResolveValidatorInput<TInputValidator> extends ValidateValidator<\n            TRegister,\n            TMethod,\n            TInputValidator\n          >\n        ? TInputValidator\n        : never)\n  | ValidateValidator<TRegister, TMethod, TInputValidator>\n\nexport type AppendMiddlewares<TMiddlewares, TNewMiddlewares> =\n  TMiddlewares extends ReadonlyArray<any>\n    ? TNewMiddlewares extends ReadonlyArray<any>\n      ? readonly [...TMiddlewares, ...TNewMiddlewares]\n      : TMiddlewares\n    : TNewMiddlewares\n\nexport interface ServerFnMiddleware<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> {\n  middleware: <const TNewMiddlewares>(\n    middlewares: Constrain<\n      TNewMiddlewares,\n      ReadonlyArray<AnyFunctionMiddleware | AnyRequestMiddleware | AnyServerFn>\n    >,\n  ) => ServerFnAfterMiddleware<\n    TRegister,\n    TMethod,\n    AppendMiddlewares<TMiddlewares, TNewMiddlewares>,\n    TInputValidator\n  >\n}\n\nexport interface ServerFnAfterMiddleware<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> extends ServerFnWithTypes<\n      TRegister,\n      TMethod,\n      TMiddlewares,\n      TInputValidator,\n      undefined\n    >,\n    ServerFnMiddleware<TRegister, TMethod, TMiddlewares, undefined>,\n    ServerFnValidator<TRegister, TMethod, TMiddlewares>,\n    ServerFnHandler<TRegister, TMethod, TMiddlewares, TInputValidator> {\n  <TNewMethod extends Method = TMethod>(options?: {\n    method?: TNewMethod\n  }): ServerFnAfterMiddleware<\n    TRegister,\n    TNewMethod,\n    TMiddlewares,\n    TInputValidator\n  >\n}\n\nexport type ValidatorFn<TRegister, TMethod extends Method, TMiddlewares> = <\n  TInputValidator,\n>(\n  inputValidator: ConstrainValidator<TRegister, TMethod, TInputValidator>,\n) => ServerFnAfterValidator<TRegister, TMethod, TMiddlewares, TInputValidator>\n\nexport interface ServerFnValidator<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n> {\n  inputValidator: ValidatorFn<TRegister, TMethod, TMiddlewares>\n}\n\nexport interface ServerFnAfterValidator<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> extends ServerFnWithTypes<\n      TRegister,\n      TMethod,\n      TMiddlewares,\n      TInputValidator,\n      undefined\n    >,\n    ServerFnMiddleware<TRegister, TMethod, TMiddlewares, TInputValidator>,\n    ServerFnHandler<TRegister, TMethod, TMiddlewares, TInputValidator> {}\n\nexport interface ServerFnAfterTyper<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> extends ServerFnWithTypes<\n      TRegister,\n      TMethod,\n      TMiddlewares,\n      TInputValidator,\n      undefined\n    >,\n    ServerFnHandler<TRegister, TMethod, TMiddlewares, TInputValidator> {}\n\n// Handler\nexport interface ServerFnHandler<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> {\n  handler: <TNewResponse>(\n    fn?: ServerFn<\n      TRegister,\n      TMethod,\n      TMiddlewares,\n      TInputValidator,\n      TNewResponse\n    >,\n  ) => Fetcher<TMiddlewares, TInputValidator, TNewResponse>\n}\n\nexport interface ServerFnBuilder<TRegister, TMethod extends Method = 'GET'>\n  extends ServerFnWithTypes<\n      TRegister,\n      TMethod,\n      undefined,\n      undefined,\n      undefined\n    >,\n    ServerFnMiddleware<TRegister, TMethod, undefined, undefined>,\n    ServerFnValidator<TRegister, TMethod, undefined>,\n    ServerFnHandler<TRegister, TMethod, undefined, undefined> {\n  options: ServerFnBaseOptions<\n    TRegister,\n    TMethod,\n    unknown,\n    undefined,\n    undefined\n  >\n}\n\nexport interface ServerFnWithTypes<\n  in out TRegister,\n  in out TMethod extends Method,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TResponse,\n> {\n  '~types': ServerFnTypes<\n    TRegister,\n    TMethod,\n    TMiddlewares,\n    TInputValidator,\n    TResponse\n  >\n  options: ServerFnBaseOptions<\n    TRegister,\n    TMethod,\n    unknown,\n    undefined,\n    undefined\n  >\n  [TSS_SERVER_FUNCTION_FACTORY]: true\n}\n\nexport type AnyServerFn = ServerFnWithTypes<any, any, any, any, any>\n\nexport interface ServerFnTypes<\n  in out TRegister,\n  in out TMethod extends Method,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TResponse,\n> {\n  method: TMethod\n  middlewares: TMiddlewares\n  inputValidator: TInputValidator\n  response: TResponse\n  allServerContext: AssignAllServerFnContext<TRegister, TMiddlewares>\n  allInput: IntersectAllValidatorInputs<TMiddlewares, TInputValidator>\n  allOutput: IntersectAllValidatorOutputs<TMiddlewares, TInputValidator>\n}\n\nexport function flattenMiddlewares<\n  T extends AnyFunctionMiddleware | AnyRequestMiddleware,\n>(middlewares: Array<T>, maxDepth: number = 100): Array<T> {\n  const seen = new Set<T>()\n  const flattened: Array<T> = []\n\n  const recurse = (middleware: Array<T>, depth: number) => {\n    if (depth > maxDepth) {\n      throw new Error(\n        `Middleware nesting depth exceeded maximum of ${maxDepth}. Check for circular references.`,\n      )\n    }\n    middleware.forEach((m) => {\n      if (m.options.middleware) {\n        recurse(m.options.middleware as Array<T>, depth + 1)\n      }\n\n      if (!seen.has(m)) {\n        seen.add(m)\n        flattened.push(m)\n      }\n    })\n  }\n\n  recurse(middlewares, 0)\n\n  return flattened\n}\n\nexport type ServerFnMiddlewareOptions = {\n  method: Method\n  data: any\n  headers?: HeadersInit\n  signal?: AbortSignal\n  sendContext?: any\n  context?: any\n  functionId: string\n}\n\nexport type ServerFnMiddlewareResult = ServerFnMiddlewareOptions & {\n  result?: unknown\n  error?: unknown\n}\n\nexport type NextFn = (\n  ctx: ServerFnMiddlewareResult,\n) => Promise<ServerFnMiddlewareResult>\n\nexport type MiddlewareFn = (\n  ctx: ServerFnMiddlewareOptions & {\n    next: NextFn\n  },\n) => Promise<ServerFnMiddlewareResult>\n\nexport async function execValidator(\n  validator: AnyValidator,\n  input: unknown,\n): Promise<unknown> {\n  if 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+{"version":3,"file":"createServerFn.js","sources":["../../src/createServerFn.ts"],"sourcesContent":["import { mergeHeaders } from '@tanstack/router-core/ssr/client'\n\nimport { isRedirect, parseRedirect } from '@tanstack/router-core'\nimport { TSS_SERVER_FUNCTION_FACTORY } from './constants'\nimport { getStartOptions } from './getStartOptions'\nimport { getStartContextServerOnly } from './getStartContextServerOnly'\nimport { createNullProtoObject, safeObjectMerge } from './safeObjectMerge'\nimport type {\n  ClientFnMeta,\n  ServerFnMeta,\n  TSS_SERVER_FUNCTION,\n} from './constants'\nimport type {\n  AnyValidator,\n  Constrain,\n  Expand,\n  Register,\n  RegisteredSerializableInput,\n  ResolveValidatorInput,\n  ValidateSerializable,\n  ValidateSerializableInput,\n  Validator,\n} from '@tanstack/router-core'\nimport type {\n  AnyFunctionMiddleware,\n  AnyRequestMiddleware,\n  AssignAllServerFnContext,\n  FunctionMiddlewareClientFnResult,\n  FunctionMiddlewareServerFnResult,\n  IntersectAllValidatorInputs,\n  IntersectAllValidatorOutputs,\n} from './createMiddleware'\n\ntype TODO = any\n\nexport type CreateServerFn<TRegister> = <\n  TMethod extends Method,\n  TResponse = unknown,\n  TMiddlewares = undefined,\n  TInputValidator = undefined,\n>(\n  options?: {\n    method?: TMethod\n  },\n  __opts?: ServerFnBaseOptions<\n    TRegister,\n    TMethod,\n    TResponse,\n    TMiddlewares,\n    TInputValidator\n  >,\n) => ServerFnBuilder<TRegister, TMethod>\n\nexport const createServerFn: CreateServerFn<Register> = (options, __opts) => {\n  const resolvedOptions = (__opts || options || {}) as ServerFnBaseOptions<\n    any,\n    any,\n    any,\n    any,\n    any\n  >\n\n  if (typeof resolvedOptions.method === 'undefined') {\n    resolvedOptions.method = 'GET' as Method\n  }\n\n  const res: ServerFnBuilder<Register, Method> = {\n    options: resolvedOptions as any,\n    middleware: (middleware) => {\n      // multiple calls to `middleware()` merge the middlewares with the previously supplied ones\n      // this is primarily useful for letting users create their own abstractions on top of `createServerFn`\n\n      const newMiddleware = [...(resolvedOptions.middleware || [])]\n      middleware.map((m) => {\n        if (TSS_SERVER_FUNCTION_FACTORY in m) {\n          if (m.options.middleware) {\n            newMiddleware.push(...m.options.middleware)\n          }\n        } else {\n          newMiddleware.push(m)\n        }\n      })\n\n      const newOptions = {\n        ...resolvedOptions,\n        middleware: newMiddleware,\n      }\n      const res = createServerFn(undefined, newOptions) as any\n      res[TSS_SERVER_FUNCTION_FACTORY] = true\n      return res\n    },\n    inputValidator: (inputValidator) => {\n      const newOptions = { ...resolvedOptions, inputValidator }\n      return createServerFn(undefined, newOptions) as any\n    },\n    handler: (...args) => {\n      // This function signature changes due to AST transformations\n      // in the babel plugin. We need to cast it to the correct\n      // function signature post-transformation\n      const [extractedFn, serverFn] = args as unknown as [\n        CompiledFetcherFn<Register, any>,\n        ServerFn<Register, Method, any, any, any>,\n      ]\n\n      // Keep the original function around so we can use it\n      // in the server environment\n      const newOptions = { ...resolvedOptions, extractedFn, serverFn }\n\n      const resolvedMiddleware = [\n        ...(newOptions.middleware || []),\n        serverFnBaseToMiddleware(newOptions),\n      ]\n\n      // We want to make sure the new function has the same\n      // properties as the original function\n\n      return Object.assign(\n        async (opts?: CompiledFetcherFnOptions) => {\n          // Start by executing the client-side middleware chain\n          const result = await executeMiddleware(resolvedMiddleware, 'client', {\n            ...extractedFn,\n            ...newOptions,\n            data: opts?.data as any,\n            headers: opts?.headers,\n            signal: opts?.signal,\n            context: createNullProtoObject(),\n          })\n\n          const redirect = parseRedirect(result.error)\n          if (redirect) {\n            throw redirect\n          }\n\n          if (result.error) throw result.error\n          return result.result\n        },\n        {\n          // This copies over the URL, function ID\n          ...extractedFn,\n          // The extracted function on the server-side calls\n          // this function\n          __executeServer: async (opts: any, signal: AbortSignal) => {\n            const startContext = getStartContextServerOnly()\n            const serverContextAfterGlobalMiddlewares =\n              startContext.contextAfterGlobalMiddlewares\n            // Use safeObjectMerge for opts.context which comes from client\n            const ctx = {\n              ...extractedFn,\n              ...opts,\n              // Ensure we use the full serverFnMeta from the provider file's extractedFn\n              // (which has id, name, filename) rather than the partial one from SSR/client\n              // callers (which only has id)\n              serverFnMeta: extractedFn.serverFnMeta,\n              // Use safeObjectMerge for opts.context which comes from client\n              context: safeObjectMerge(\n                serverContextAfterGlobalMiddlewares,\n                opts.context,\n              ),\n              signal,\n              request: startContext.request,\n            }\n\n            const result = await executeMiddleware(\n              resolvedMiddleware,\n              'server',\n              ctx,\n            ).then((d) => ({\n              // Only send the result and sendContext back to the client\n              result: d.result,\n              error: d.error,\n              context: d.sendContext,\n            }))\n\n            return result\n          },\n        },\n      ) as any\n    },\n  } as ServerFnBuilder<Register, Method>\n  const fun = (options?: { method?: Method }) => {\n    const newOptions = {\n      ...resolvedOptions,\n      ...options,\n    }\n    return createServerFn(undefined, newOptions) as any\n  }\n  return Object.assign(fun, res) as any\n}\n\nexport async function executeMiddleware(\n  middlewares: Array<AnyFunctionMiddleware | AnyRequestMiddleware>,\n  env: 'client' | 'server',\n  opts: ServerFnMiddlewareOptions,\n): Promise<ServerFnMiddlewareResult> {\n  const globalMiddlewares = getStartOptions()?.functionMiddleware || []\n  let flattenedMiddlewares = flattenMiddlewares([\n    ...globalMiddlewares,\n    ...middlewares,\n  ])\n\n  // On server, filter out middlewares that already executed in the request phase\n  // to prevent duplicate execution (issue #5239)\n  if (env === 'server') {\n    const startContext = getStartContextServerOnly({ throwIfNotFound: false })\n    if (startContext?.executedRequestMiddlewares) {\n      flattenedMiddlewares = flattenedMiddlewares.filter(\n        (m) => !startContext.executedRequestMiddlewares.has(m),\n      )\n    }\n  }\n\n  const callNextMiddleware: NextFn = async (ctx) => {\n    // Get the next middleware\n    const nextMiddleware = flattenedMiddlewares.shift()\n\n    // If there are no more middlewares, return the context\n    if (!nextMiddleware) {\n      return ctx\n    }\n\n    // Execute the middleware\n    try {\n      if (\n        'inputValidator' in nextMiddleware.options &&\n        nextMiddleware.options.inputValidator &&\n        env === 'server'\n      ) {\n        // Execute the middleware's input function\n        ctx.data = await execValidator(\n          nextMiddleware.options.inputValidator,\n          ctx.data,\n        )\n      }\n\n      let middlewareFn: MiddlewareFn | undefined = undefined\n      if (env === 'client') {\n        if ('client' in nextMiddleware.options) {\n          middlewareFn = nextMiddleware.options.client as\n            | MiddlewareFn\n            | undefined\n        }\n      }\n      // env === 'server'\n      else if ('server' in nextMiddleware.options) {\n        middlewareFn = nextMiddleware.options.server as MiddlewareFn | undefined\n      }\n\n      if (middlewareFn) {\n        const userNext = async (\n          userCtx: ServerFnMiddlewareResult | undefined = {} as any,\n        ) => {\n          // Return the next middleware\n          // Use safeObjectMerge for context objects to prevent prototype pollution\n          const nextCtx = {\n            ...ctx,\n            ...userCtx,\n            context: safeObjectMerge(ctx.context, userCtx.context),\n            sendContext: safeObjectMerge(ctx.sendContext, userCtx.sendContext),\n            headers: mergeHeaders(ctx.headers, userCtx.headers),\n            result:\n              userCtx.result !== undefined\n                ? userCtx.result\n                : userCtx instanceof Response\n                  ? userCtx\n                  : (ctx as any).result,\n            error: userCtx.error ?? (ctx as any).error,\n          }\n\n          try {\n            return await callNextMiddleware(nextCtx)\n          } catch (error: any) {\n            return {\n              ...nextCtx,\n              error,\n            }\n          }\n        }\n\n        // Execute the middleware\n        const result = await middlewareFn({\n          ...ctx,\n          next: userNext as any,\n        } as any)\n\n        // If result is NOT a ctx object, we need to return it as\n        // the { result }\n        if (isRedirect(result)) {\n          return {\n            ...ctx,\n            error: result,\n          }\n        }\n\n        if (result instanceof Response) {\n          return {\n            ...ctx,\n            result,\n          }\n        }\n\n        if (!(result as any)) {\n          throw new Error(\n            'User middleware returned undefined. You must call next() or return a result in your middlewares.',\n          )\n        }\n\n        return result\n      }\n\n      return callNextMiddleware(ctx)\n    } catch (error: any) {\n      return {\n        ...ctx,\n        error,\n      }\n    }\n  }\n\n  // Start the middleware chain\n  return callNextMiddleware({\n    ...opts,\n    headers: opts.headers || {},\n    sendContext: opts.sendContext || {},\n    context: opts.context || createNullProtoObject(),\n  })\n}\n\nexport type CompiledFetcherFnOptions = {\n  method: Method\n  data: unknown\n  headers?: HeadersInit\n  signal?: AbortSignal\n  context?: any\n}\n\nexport type Fetcher<TMiddlewares, TInputValidator, TResponse> =\n  undefined extends IntersectAllValidatorInputs<TMiddlewares, TInputValidator>\n    ? OptionalFetcher<TMiddlewares, TInputValidator, TResponse>\n    : RequiredFetcher<TMiddlewares, TInputValidator, TResponse>\n\nexport interface FetcherBase {\n  [TSS_SERVER_FUNCTION]: true\n  url: string\n  __executeServer: (opts: {\n    method: Method\n    data: unknown\n    headers?: HeadersInit\n    context?: any\n    signal: AbortSignal\n  }) => Promise<unknown>\n}\n\nexport interface OptionalFetcher<TMiddlewares, TInputValidator, TResponse>\n  extends FetcherBase {\n  (\n    options?: OptionalFetcherDataOptions<TMiddlewares, TInputValidator>,\n  ): Promise<Awaited<TResponse>>\n}\n\nexport interface RequiredFetcher<TMiddlewares, TInputValidator, TResponse>\n  extends FetcherBase {\n  (\n    opts: RequiredFetcherDataOptions<TMiddlewares, TInputValidator>,\n  ): Promise<Awaited<TResponse>>\n}\n\nexport type FetcherBaseOptions = {\n  headers?: HeadersInit\n  signal?: AbortSignal\n}\n\nexport interface OptionalFetcherDataOptions<TMiddlewares, TInputValidator>\n  extends FetcherBaseOptions {\n  data?: Expand<IntersectAllValidatorInputs<TMiddlewares, TInputValidator>>\n}\n\nexport interface RequiredFetcherDataOptions<TMiddlewares, TInputValidator>\n  extends FetcherBaseOptions {\n  data: Expand<IntersectAllValidatorInputs<TMiddlewares, TInputValidator>>\n}\n\nexport type RscStream<T> = {\n  __cacheState: T\n}\n\nexport type Method = 'GET' | 'POST'\n\nexport type ServerFnReturnType<TRegister, TResponse> =\n  TResponse extends PromiseLike<infer U>\n    ? Promise<ServerFnReturnType<TRegister, U>>\n    : TResponse extends Response\n      ? TResponse\n      : ValidateSerializableInput<TRegister, TResponse>\n\nexport type ServerFn<\n  TRegister,\n  TMethod,\n  TMiddlewares,\n  TInputValidator,\n  TResponse,\n> = (\n  ctx: ServerFnCtx<TRegister, TMiddlewares, TInputValidator>,\n) => ServerFnReturnType<TRegister, TResponse>\n\nexport interface ServerFnCtx<TRegister, TMiddlewares, TInputValidator> {\n  data: Expand<IntersectAllValidatorOutputs<TMiddlewares, TInputValidator>>\n  context: Expand<AssignAllServerFnContext<TRegister, TMiddlewares, {}>>\n  signal: AbortSignal\n}\n\nexport type CompiledFetcherFn<TRegister, TResponse> = {\n  (\n    opts: CompiledFetcherFnOptions & ServerFnBaseOptions<TRegister, Method>,\n  ): Promise<TResponse>\n  url: string\n  serverFnMeta: ServerFnMeta\n}\n\nexport type ServerFnBaseOptions<\n  TRegister,\n  TMethod extends Method = 'GET',\n  TResponse = unknown,\n  TMiddlewares = unknown,\n  TInputValidator = unknown,\n> = {\n  method: TMethod\n  middleware?: Constrain<\n    TMiddlewares,\n    ReadonlyArray<AnyFunctionMiddleware | AnyRequestMiddleware>\n  >\n  inputValidator?: ConstrainValidator<TRegister, TMethod, TInputValidator>\n  extractedFn?: CompiledFetcherFn<TRegister, TResponse>\n  serverFn?: ServerFn<\n    TRegister,\n    TMethod,\n    TMiddlewares,\n    TInputValidator,\n    TResponse\n  >\n}\n\nexport type ValidateValidatorInput<\n  TRegister,\n  TMethod extends Method,\n  TInputValidator,\n> = TMethod extends 'POST'\n  ? ResolveValidatorInput<TInputValidator> extends FormData\n    ? ResolveValidatorInput<TInputValidator>\n    : ValidateSerializable<\n        ResolveValidatorInput<TInputValidator>,\n        RegisteredSerializableInput<TRegister>\n      >\n  : ValidateSerializable<\n      ResolveValidatorInput<TInputValidator>,\n      RegisteredSerializableInput<TRegister>\n    >\n\nexport type ValidateValidator<\n  TRegister,\n  TMethod extends Method,\n  TInputValidator,\n> =\n  ValidateValidatorInput<\n    TRegister,\n    TMethod,\n    TInputValidator\n  > extends infer TInput\n    ? Validator<TInput, any>\n    : never\n\nexport type ConstrainValidator<\n  TRegister,\n  TMethod extends Method,\n  TInputValidator,\n> =\n  | (unknown extends TInputValidator\n      ? TInputValidator\n      : ResolveValidatorInput<TInputValidator> extends ValidateValidator<\n            TRegister,\n            TMethod,\n            TInputValidator\n          >\n        ? TInputValidator\n        : never)\n  | ValidateValidator<TRegister, TMethod, TInputValidator>\n\nexport type AppendMiddlewares<TMiddlewares, TNewMiddlewares> =\n  TMiddlewares extends ReadonlyArray<any>\n    ? TNewMiddlewares extends ReadonlyArray<any>\n      ? readonly [...TMiddlewares, ...TNewMiddlewares]\n      : TMiddlewares\n    : TNewMiddlewares\n\nexport interface ServerFnMiddleware<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> {\n  middleware: <const TNewMiddlewares>(\n    middlewares: Constrain<\n      TNewMiddlewares,\n      ReadonlyArray<AnyFunctionMiddleware | AnyRequestMiddleware | AnyServerFn>\n    >,\n  ) => ServerFnAfterMiddleware<\n    TRegister,\n    TMethod,\n    AppendMiddlewares<TMiddlewares, TNewMiddlewares>,\n    TInputValidator\n  >\n}\n\nexport interface ServerFnAfterMiddleware<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> extends ServerFnWithTypes<\n      TRegister,\n      TMethod,\n      TMiddlewares,\n      TInputValidator,\n      undefined\n    >,\n    ServerFnMiddleware<TRegister, TMethod, TMiddlewares, undefined>,\n    ServerFnValidator<TRegister, TMethod, TMiddlewares>,\n    ServerFnHandler<TRegister, TMethod, TMiddlewares, TInputValidator> {\n  <TNewMethod extends Method = TMethod>(options?: {\n    method?: TNewMethod\n  }): ServerFnAfterMiddleware<\n    TRegister,\n    TNewMethod,\n    TMiddlewares,\n    TInputValidator\n  >\n}\n\nexport type ValidatorFn<TRegister, TMethod extends Method, TMiddlewares> = <\n  TInputValidator,\n>(\n  inputValidator: ConstrainValidator<TRegister, TMethod, TInputValidator>,\n) => ServerFnAfterValidator<TRegister, TMethod, TMiddlewares, TInputValidator>\n\nexport interface ServerFnValidator<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n> {\n  inputValidator: ValidatorFn<TRegister, TMethod, TMiddlewares>\n}\n\nexport interface ServerFnAfterValidator<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> extends ServerFnWithTypes<\n      TRegister,\n      TMethod,\n      TMiddlewares,\n      TInputValidator,\n      undefined\n    >,\n    ServerFnMiddleware<TRegister, TMethod, TMiddlewares, TInputValidator>,\n    ServerFnHandler<TRegister, TMethod, TMiddlewares, TInputValidator> {}\n\nexport interface ServerFnAfterTyper<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> extends ServerFnWithTypes<\n      TRegister,\n      TMethod,\n      TMiddlewares,\n      TInputValidator,\n      undefined\n    >,\n    ServerFnHandler<TRegister, TMethod, TMiddlewares, TInputValidator> {}\n\n// Handler\nexport interface ServerFnHandler<\n  TRegister,\n  TMethod extends Method,\n  TMiddlewares,\n  TInputValidator,\n> {\n  handler: <TNewResponse>(\n    fn?: ServerFn<\n      TRegister,\n      TMethod,\n      TMiddlewares,\n      TInputValidator,\n      TNewResponse\n    >,\n  ) => Fetcher<TMiddlewares, TInputValidator, TNewResponse>\n}\n\nexport interface ServerFnBuilder<TRegister, TMethod extends Method = 'GET'>\n  extends ServerFnWithTypes<\n      TRegister,\n      TMethod,\n      undefined,\n      undefined,\n      undefined\n    >,\n    ServerFnMiddleware<TRegister, TMethod, undefined, undefined>,\n    ServerFnValidator<TRegister, TMethod, undefined>,\n    ServerFnHandler<TRegister, TMethod, undefined, undefined> {\n  options: ServerFnBaseOptions<\n    TRegister,\n    TMethod,\n    unknown,\n    undefined,\n    undefined\n  >\n}\n\nexport interface ServerFnWithTypes<\n  in out TRegister,\n  in out TMethod extends Method,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TResponse,\n> {\n  '~types': ServerFnTypes<\n    TRegister,\n    TMethod,\n    TMiddlewares,\n    TInputValidator,\n    TResponse\n  >\n  options: ServerFnBaseOptions<\n    TRegister,\n    TMethod,\n    unknown,\n    undefined,\n    undefined\n  >\n  [TSS_SERVER_FUNCTION_FACTORY]: true\n}\n\nexport type AnyServerFn = ServerFnWithTypes<any, any, any, any, any>\n\nexport interface ServerFnTypes<\n  in out TRegister,\n  in out TMethod extends Method,\n  in out TMiddlewares,\n  in out TInputValidator,\n  in out TResponse,\n> {\n  method: TMethod\n  middlewares: TMiddlewares\n  inputValidator: TInputValidator\n  response: TResponse\n  allServerContext: AssignAllServerFnContext<TRegister, TMiddlewares>\n  allInput: IntersectAllValidatorInputs<TMiddlewares, TInputValidator>\n  allOutput: IntersectAllValidatorOutputs<TMiddlewares, TInputValidator>\n}\n\nexport function flattenMiddlewares<\n  T extends AnyFunctionMiddleware | AnyRequestMiddleware,\n>(middlewares: Array<T>, maxDepth: number = 100): Array<T> {\n  const seen = new Set<T>()\n  const flattened: Array<T> = []\n\n  const recurse = (middleware: Array<T>, depth: number) => {\n    if (depth > maxDepth) {\n      throw new Error(\n        `Middleware nesting depth exceeded maximum of ${maxDepth}. Check for circular references.`,\n      )\n    }\n    middleware.forEach((m) => {\n      if (m.options.middleware) {\n        recurse(m.options.middleware as Array<T>, depth + 1)\n      }\n\n      if (!seen.has(m)) {\n        seen.add(m)\n        flattened.push(m)\n      }\n    })\n  }\n\n  recurse(middlewares, 0)\n\n  return flattened\n}\n\nexport type ServerFnMiddlewareOptions = {\n  method: Method\n  data: any\n  headers?: HeadersInit\n  signal?: AbortSignal\n  sendContext?: any\n  context?: any\n  serverFnMeta: ClientFnMeta\n}\n\nexport type ServerFnMiddlewareResult = ServerFnMiddlewareOptions & {\n  result?: unknown\n  error?: unknown\n}\n\nexport type NextFn = (\n  ctx: ServerFnMiddlewareResult,\n) => Promise<ServerFnMiddlewareResult>\n\nexport type MiddlewareFn = (\n  ctx: ServerFnMiddlewareOptions & {\n    next: NextFn\n  },\n) => Promise<ServerFnMiddlewareResult>\n\nexport async function execValidator(\n  validator: AnyValidator,\n  input: unknown,\n): Promise<unknown> {\n  if (validator == null) return {}\n\n  if ('~standard' in validator) {\n    const result = await validator['~standard'].validate(input)\n\n    if (result.issues)\n      throw new Error(JSON.stringify(result.issues, undefined, 2))\n\n    return result.value\n  }\n\n  if ('parse' in validator) {\n    return validator.parse(input)\n  }\n\n  if (typeof validator === 'function') {\n    return validator(input)\n  }\n\n  throw new Error('Invalid validator type!')\n}\n\nfunction serverFnBaseToMiddleware(\n  options: ServerFnBaseOptions<any, any, any, any, any>,\n): AnyFunctionMiddleware {\n  return {\n    '~types': undefined!,\n    options: {\n      inputValidator: options.inputValidator,\n      client: async ({ next, sendContext, ...ctx }) => {\n        const payload = {\n          ...ctx,\n          // switch the sendContext over to context\n          context: sendContext,\n        } as any\n\n        // Execute the extracted function\n        // but not before serializing the context\n        const res = await options.extractedFn?.(payload)\n\n        return next(res) as unknown as FunctionMiddlewareClientFnResult<\n          any,\n          any,\n          any\n        >\n      },\n      server: async ({ next, ...ctx }) => {\n        // Execute the server function\n        const result = await options.serverFn?.(ctx as TODO)\n\n        return next({\n          ...ctx,\n          result,\n        } as any) as unknown as FunctionMiddlewareServerFnResult<\n          any,\n          any,\n          any,\n          any,\n          any\n        >\n      },\n    },\n  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dist/esm/index.d.ts

@@ -11,3 +11,3 @@ export type { JsonResponse } from '@tanstack/router-core/ssr/client';
 export { TSS_FORMDATA_CONTEXT, TSS_SERVER_FUNCTION, TSS_CONTENT_TYPE_FRAMED, TSS_CONTENT_TYPE_FRAMED_VERSIONED, TSS_FRAMED_PROTOCOL_VERSION, FrameType, FRAME_HEADER_SIZE, X_TSS_SERIALIZED, X_TSS_RAW_RESPONSE, X_TSS_CONTEXT, validateFramedProtocolVersion, } from './constants.js';
-export type { FrameType as FrameTypeValue } from './constants.js';
+export type { FrameType as FrameTypeValue, ClientFnMeta, ServerFnMeta, } from './constants.js';
 export type * from './serverRoute.js';
@@ -14,0 +14,0 @@ export type * from './startEntry.js';

package.json

 {
   "name": "@tanstack/start-client-core",
-  "version": "1.147.1",
+  "version": "1.148.0",
   "description": "Modern and scalable routing for React applications",
@@ -5,0 +5,0 @@ "author": "Tanner Linsley",

src/client-rpc/createClientRpc.ts

 import { TSS_SERVER_FUNCTION } from '../constants'
 import { serverFnFetcher } from './serverFnFetcher'
+import type { ClientFnMeta } from '../constants'
 
 export function createClientRpc(functionId: string) {
   const url = process.env.TSS_SERVER_FN_BASE + functionId
+  const serverFnMeta: ClientFnMeta = { id: functionId }
 
@@ -13,5 +15,5 @@ const clientFn = (...args: Array<any>) => {
     url,
-    functionId,
+    serverFnMeta,
     [TSS_SERVER_FUNCTION]: true,
   })
 }

src/client/ServerFunctionSerializationAdapter.ts

@@ -7,3 +7,3 @@ import { createSerializationAdapter } from '@tanstack/router-core'
   key: '$TSS/serverfn',
-  test: (v): v is { functionId: string } => {
+  test: (v): v is { serverFnMeta: { id: string } } => {
     if (typeof v !== 'function') return false
@@ -15,4 +15,4 @@
   },
-  toSerializable: ({ functionId }) => ({ functionId }),
+  toSerializable: ({ serverFnMeta }) => ({ functionId: serverFnMeta.id }),
   fromSerializable: ({ functionId }) => createClientRpc(functionId),
 })

src/constants.ts

@@ -69,2 +69,23 @@ export const TSS_FORMDATA_CONTEXT = '__TSS_CONTEXT'
 }
+
+/**
+ * Minimal metadata about a server function, available to client middleware.
+ * Only contains the function ID since name/filename may expose server internals.
+ */
+export interface ClientFnMeta {
+  /** The unique identifier for this server function */
+  id: string
+}
+
+/**
+ * Full metadata about a server function, available to server middleware.
+ * This information is embedded at compile time by the TanStack Start compiler.
+ */
+export interface ServerFnMeta extends ClientFnMeta {
+  /** The original variable name of the server function (e.g., "myServerFn") */
+  name: string
+  /** The source file path relative to the project root (e.g., "src/routes/api.ts") */
+  filename: string
+}
+
 export {}

src/createMiddleware.ts

 import type { StartInstanceOptions } from './createStart'
 import type { AnyServerFn, ConstrainValidator, Method } from './createServerFn'
+import type { ClientFnMeta, ServerFnMeta } from './constants'
 import type {
@@ -514,4 +515,3 @@ AnyContext,
   method: Method
-  filename: string
-  functionId: string
+  serverFnMeta: ServerFnMeta
   signal: AbortSignal
@@ -612,5 +612,4 @@ }
   signal: AbortSignal
+  serverFnMeta: ClientFnMeta
   next: FunctionMiddlewareClientNextFn<TRegister, TMiddlewares>
-  filename: string
-  functionId: string
 }
@@ -617,0 +616,0 @@

src/createServerFn.ts

@@ -9,2 +9,7 @@ import { mergeHeaders } from '@tanstack/router-core/ssr/client'
 import type {
+  ClientFnMeta,
+  ServerFnMeta,
+  TSS_SERVER_FUNCTION,
+} from './constants'
+import type {
   AnyValidator,
@@ -20,3 +25,2 @@ Constrain,
 } from '@tanstack/router-core'
-import type { TSS_SERVER_FUNCTION } from './constants'
 import type {
@@ -148,2 +152,7 @@ AnyFunctionMiddleware,
               ...opts,
+              // Ensure we use the full serverFnMeta from the provider file's extractedFn
+              // (which has id, name, filename) rather than the partial one from SSR/client
+              // callers (which only has id)
+              serverFnMeta: extractedFn.serverFnMeta,
+              // Use safeObjectMerge for opts.context which comes from client
               context: safeObjectMerge(
@@ -410,2 +419,3 @@ serverContextAfterGlobalMiddlewares,
   url: string
+  serverFnMeta: ServerFnMeta
 }
@@ -434,3 +444,2 @@
   >
-  functionId: string
 }
@@ -693,3 +702,3 @@
   context?: any
-  functionId: string
+  serverFnMeta: ClientFnMeta
 }
@@ -696,0 +705,0 @@

src/index.tsx

@@ -96,3 +96,7 @@ export type { JsonResponse } from '@tanstack/router-core/ssr/client'
 } from './constants'
-export type { FrameType as FrameTypeValue } from './constants'
+export type {
+  FrameType as FrameTypeValue,
+  ClientFnMeta,
+  ServerFnMeta,
+} from './constants'
 
@@ -99,0 +103,0 @@ export type * from './serverRoute'

New alerts

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Environment variable access

Supply chain risk

Package accesses environment variables, which may be a sign of credential stuffing or data theft.

Found 2 instances in 1 package

Fixed alerts

Network access

Supply chain risk

This module accesses the network.

Found 1 instance in 1 package

Environment variable access

Supply chain risk

Package accesses environment variables, which may be a sign of credential stuffing or data theft.

Found 2 instances in 1 package

Long strings

Supply chain risk

Contains long string literals, which may be a sign of obfuscated or packed code.

Found 1 instance in 1 package

Improved metrics

Total package byte prevSize

326216

1.23%

Lines of code

6227

0.92%

Number of low supply chain risk alerts

4

-50%

No dependency changes