@langchain/core - npm Package Compare versions

Comparing version 0.3.45 to 0.3.46

dist/prompts/chat.d.ts

@@ -11,2 +11,3 @@ import type { BaseCallbackConfig } from "../callbacks/manager.js";
 import { TemplateFormat } from "./template.js";
+import { DictPromptTemplate } from "./dict.js";
 /**
@@ -120,3 +121,3 @@ * Abstract class that serves as a base for creating message prompt
     additionalOptions: _StringImageMessagePromptTemplateOptions;
-    prompt: BaseStringPromptTemplate<InputValues<Extract<keyof RunInput, string>>, string> | Array<BaseStringPromptTemplate<InputValues<Extract<keyof RunInput, string>>, string> | ImagePromptTemplate<InputValues<Extract<keyof RunInput, string>>, string> | MessageStringPromptTemplateFields<InputValues<Extract<keyof RunInput, string>>>>;
+    prompt: BaseStringPromptTemplate<InputValues<Extract<keyof RunInput, string>>, string> | Array<BaseStringPromptTemplate<InputValues<Extract<keyof RunInput, string>>, string> | ImagePromptTemplate<InputValues<Extract<keyof RunInput, string>>, string> | MessageStringPromptTemplateFields<InputValues<Extract<keyof RunInput, string>>> | DictPromptTemplate<InputValues<Extract<keyof RunInput, string>>>>;
     protected messageClass?: MessageClass;
@@ -130,3 +131,3 @@ static _messageClass(): MessageClass;
     getRoleFromMessageClass(name: string): "human" | "ai" | "system" | "chat";
-    static fromTemplate(template: string | Array<string | _TextTemplateParam | _ImageTemplateParam>, additionalOptions?: _StringImageMessagePromptTemplateOptions): _StringImageMessagePromptTemplate<any, BaseMessage[]>;
+    static fromTemplate(template: string | Array<string | _TextTemplateParam | _ImageTemplateParam | Record<string, unknown>>, additionalOptions?: _StringImageMessagePromptTemplateOptions): _StringImageMessagePromptTemplate<any, BaseMessage[]>;
     format(input: TypedPromptInputValues<RunInput>): Promise<BaseMessage>;
@@ -133,0 +134,0 @@ formatMessages(values: RunInput): Promise<RunOutput>;

dist/prompts/chat.js

@@ -12,2 +12,3 @@ // Default generic "any" values are for backwards compatibility.
 import { addLangChainErrorFields } from "../errors/index.js";
+import { DictPromptTemplate } from "./dict.js";
 /**
@@ -184,2 +185,21 @@ * Abstract class that serves as a base for creating message prompt
 }
+function isTextTemplateParam(param) {
+    if (param === null || typeof param !== "object" || Array.isArray(param)) {
+        return false;
+    }
+    return (Object.keys(param).length === 1 &&
+        "text" in param &&
+        typeof param.text === "string");
+}
+function isImageTemplateParam(param) {
+    if (param === null || typeof param !== "object" || Array.isArray(param)) {
+        return false;
+    }
+    return ("image_url" in param &&
+        (typeof param.image_url === "string" ||
+            (typeof param.image_url === "object" &&
+                param.image_url !== null &&
+                "url" in param.image_url &&
+                typeof param.image_url.url === "string")));
+}
 class _StringImageMessagePromptTemplate extends BaseMessagePromptTemplate {
@@ -296,9 +316,12 @@ static _messageClass() {
         for (const item of template) {
-            if (typeof item === "string" ||
-                (typeof item === "object" && "text" in item)) {
+            // handle string cases
+            if (typeof item === "string") {
+                prompt.push(PromptTemplate.fromTemplate(item, additionalOptions));
+            }
+            else if (item === null) {
+                // pass
+            }
+            else if (isTextTemplateParam(item)) {
                 let text = "";
-                if (typeof item === "string") {
-                    text = item;
-                }
-                else if (typeof item.text === "string") {
+                if (typeof item.text === "string") {
                     text = item.text ?? "";
@@ -308,9 +331,7 @@ }
                     ...additionalOptions,
-                    ...(typeof item !== "string"
-                        ? { additionalContentFields: item }
-                        : {}),
+                    additionalContentFields: item,
                 };
                 prompt.push(PromptTemplate.fromTemplate(text, options));
             }
-            else if (typeof item === "object" && "image_url" in item) {
+            else if (isImageTemplateParam(item)) {
                 let imgTemplate = item.image_url ?? "";
@@ -371,2 +392,8 @@ let imgTemplateObject;
             }
+            else if (typeof item === "object") {
+                prompt.push(new DictPromptTemplate({
+                    template: item,
+                    templateFormat: additionalOptions?.templateFormat,
+                }));
+            }
         }
@@ -423,3 +450,16 @@ return new this({ prompt, additionalOptions });
                     });
+                    // eslint-disable-next-line no-instanceof/no-instanceof
                 }
+                else if (prompt instanceof DictPromptTemplate) {
+                    const formatted = await prompt.format(inputs);
+                    let additionalContentFields;
+                    if ("additionalContentFields" in prompt) {
+                        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                        additionalContentFields = prompt.additionalContentFields;
+                    }
+                    content.push({
+                        ...additionalContentFields,
+                        ...formatted,
+                    });
+                }
             }
@@ -426,0 +466,0 @@ return this.createMessage(content);

dist/prompts/index.d.ts

@@ -11,1 +11,2 @@ export * from "./base.js";
 export * from "./structured.js";
+export * from "./dict.js";

dist/prompts/index.js

@@ -11,1 +11,2 @@ export * from "./base.js";
 export * from "./structured.js";
+export * from "./dict.js";

package.json

 {
   "name": "@langchain/core",
-  "version": "0.3.45",
+  "version": "0.3.46",
   "description": "Core LangChain.js abstractions and schemas",
@@ -5,0 +5,0 @@ "type": "module",

No alert changes

Improved metrics

Total package byte prevSize

2263724

0.52%

Number of package files

669

0.45%

Lines of code

56667

0.54%

Number of maintainers

12

9.09%

No dependency changes