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@flex-development/errnode

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@flex-development/errnode

Universal API for creating Node.js errors

1.4.0
Source
npm

Version published: 2 years ago

Weekly downloads: 24; decreased by-17.24%

Maintainers: 1

Weekly downloads

Created: 2 years ago

Source

errnode

Universal API for creating Node.js errors

What is this?

This package provides a universal API for creating Node.js errors.

When should I use this?

This package is designed to help developers build Node.js tools like ponyfills, as well as more verbose tools like mlly, by providing a set of utilities and constructor functions for creating Node.js errors.

Differences between Node.js

Does not capture larger stack traces: The Node.js API temporarily overrides Error.stackTraceLimit to capture larger stack traces. This is not implemented to maintain browser compatibility.

Install

This package is ESM only.

yarn add @flex-development/errnode

From Git:

yarn add @flex-development/errnode@flex-development/errnode

See Git - Protocols | Yarn for details on requesting a specific branch, commit, or tag.

Use

import {
  createNodeError,
  ErrorCode,
  type MessageFn,
  type NodeError,
  type NodeErrorConstructor
} from '@flex-development/errnode'

/**
 * [`ERR_INVALID_URL`][1] schema.
 *
 * [1]: https://nodejs.org/api/errors.html#err_invalid_url
 *
 * @extends {NodeError<TypeError>}
 */
interface ErrInvalidUrl extends NodeError<TypeError> {
  /**
   * Error code.
   */
  code: ErrorCode.ERR_INVALID_URL

  /**
   * URL that failed to parse.
   *
   * @example
   *  'http://[127.0.0.1\x00c8763]:8000/'
   */
  input: string
}

/**
 * `ERR_INVALID_URL` model.
 *
 * Thrown when an invalid URL is passed to a [WHATWG][1] [`URL` constructor][2]
 * or [`url.parse()`][3] to be parsed.
 *
 * [1]: https://nodejs.org/api/url.html#the-whatwg-url-api
 * [2]: https://nodejs.org/api/url.html#new-urlinput-base
 * [3]: https://nodejs.org/api/url.html#urlparseurlstring-parsequerystring-slashesdenotehost
 *
 * @see https://nodejs.org/api/errors.html#err_invalid_url
 *
 * @class
 *
 * @param {string} input - URL that failed to parse
 * @return {ErrInvalidUrl} `TypeError` instance
 */
const ERR_INVALID_URL: NodeErrorConstructor<
  TypeErrorConstructor,
  MessageFn<[string]>,
  ErrInvalidUrl
> = createNodeError(
  ErrorCode.ERR_INVALID_URL,
  TypeError,
  /**
   * Creates an [`ERR_INVALID_URL`][1] message.
   *
   * [1]: https://nodejs.org/api/errors.html#err_invalid_url
   *
   * @see https://github.com/nodejs/node/blob/v19.3.0/lib/internal/errors.js#L1381-L1386
   *
   * @this {ErrInvalidUrl}
   *
   * @param {string} input - URL that failed to parse
   * @return {string} Error message
   */
  function msg(this: ErrInvalidUrl, input: string): string {
    this.input = input
    return 'Invalid URL'
  }
)

/**
 * URL that will fail to parse.
 *
 * @const {string} BAD_URL
 */
const BAD_URL: string = 'http://[127.0.0.1\x00c8763]:8000/'

/**
 * {@linkcode ERR_INVALID_URL} instance.
 *
 * @const {ErrInvalidUrl} err
 */
const err: ErrInvalidUrl = new ERR_INVALID_URL(BAD_URL)

console.error(err)
console.debug('err instanceof TypeError:', err instanceof TypeError)

...running that yields:

TypeError [ERR_INVALID_URL]: Invalid URL
    at new NodeError (file:////home/runner/work/errnode/errnode/src/create-node-error.ts:103:5)
    at file:////home/runner/work/errnode/errnode/scratch.ts:90:28
    at ModuleJob.run (node:internal/modules/esm/module_job:193:25)
    at async Promise.all (index 0)
    at async ESMLoader.import (node:internal/modules/esm/loader:533:24)
    at async loadESM (node:internal/process/esm_loader:91:5)
    at async handleMainPromise (node:internal/modules/run_main:65:12) {
  code: 'ERR_INVALID_URL',
  input: 'http://[127.0.0.1\x00c8763]:8000/'
}
err instanceof TypeError: true

API

This package exports the following identifiers:

There is no default export.

Error Models

Constructor functions representing Node.js error codes, callable with and without the new keyword. Constructor arguments are used to generate error messages.

Models can be imported individually:

import {
  ERR_INVALID_ARG_VALUE,
  ERR_INVALID_MODULE_SPECIFIER,
  ERR_INVALID_PACKAGE_CONFIG,
  ERR_INVALID_PACKAGE_TARGET,
  ERR_INVALID_URL,
  ERR_MODULE_NOT_FOUND,
  ERR_NETWORK_IMPORT_DISALLOWED,
  ERR_PACKAGE_IMPORT_NOT_DEFINED,
  ERR_PACKAGE_PATH_NOT_EXPORTED,
  ERR_UNKNOWN_FILE_EXTENSION,
  ERR_UNSUPPORTED_DIR_IMPORT,
  ERR_UNSUPPORTED_ESM_URL_SCHEME
 } from '@flex-development/errnode'

...or all at once using the errors export:

import { errors } from '@flex-development/errnode'

Note: This package does not export a model for every error code. Submit a feature request (or pull request if you're up for the challenge :wink:) to add a model. For more fine-grained control, however, use createNodeError instead.

`ERR_AMBIGUOUS_ARGUMENT(name, reason)`

Thrown when a function argument is being used in a way that suggests that the function signature may be misunderstood.

{string} name — Name of ambiguous argument
{string} reason — Reason name is ambiguous
Returns: {NodeError<TypeError>}

Source: src/models/err-ambiguous-argument.ts

`ERR_ARG_NOT_ITERABLE(name)`

Thrown when an iterable argument (i.e. a value that works with for...of loops) is required, but not provided to a Node.js API.

{string} name — Name of non-iterable argument
Returns: {NodeError<TypeError>}

Source: src/models/err-arg-not-iterable.ts

`ERR_ASYNC_CALLBACK(name)`

Thrown when an attempt is made to register something that is not a function as an AsyncHooks callback.

{string} name — Name of argument that must be a function
Returns: {NodeError<TypeError>}

Source: src/models/err-async-callback.ts

`ERR_ILLEGAL_CONSTRUCTOR()`

Thrown when an attempt is made to construct an object using a non-public constructor.

Returns: {NodeError<TypeError>}

Source: src/models/err-illegal-constructor.ts

`ERR_IMPORT_ASSERTION_TYPE_FAILED(id, type)`

Thrown when an import assertion has failed, preventing the specified module from being imported.

{string} id — Id of module that cannot be imported
{string} type — Invalid import assertion type
Returns: {NodeError<TypeError>}

Source: src/models/err-import-assertion-type-failed.ts

`ERR_IMPORT_ASSERTION_TYPE_MISSING(id, type)`

Thrown when an import assertion is missing, preventing the specified module from being imported.

{string} id — Id of module that cannot be imported
{string} type — Invalid import assertion type
Returns: {NodeError<TypeError>}

Source: src/models/err-import-assertion-type-missing.ts

`ERR_IMPORT_ASSERTION_TYPE_UNSUPPORTED(type)`

Thrown when an import assertion is not supported by a version of Node.js.

{string} type — Unsupported import assertion type
Returns: {NodeError<TypeError>}

Source: src/models/err-import-assertion-type-unsupported.ts

`ERR_INCOMPATIBLE_OPTION_PAIR(option1, option2)`

Thrown when an option pair is incompatible with each other and cannot be used at the same time.

{string} option1 — Option that cannot be used
{string} option2 — Option that is incompatible with option1
Returns: {NodeError<TypeError>}

Source: src/models/err-incompatible-option-pair.ts

`ERR_INVALID_ARG_TYPE(name, expected, actual)`

Thrown when an argument of the wrong type is passed to a Node.js API.

{string} name — Name of invalid argument or property
{OneOrMany<string>} expected — Expected type(s)
{unknown} actual — Value supplied by user
Returns: {NodeError<TypeError>}

Source: src/models/err-invalid-arg-type.ts

`ERR_INVALID_ARG_VALUE(name, value[, reason])`

Thrown when an invalid or unsupported value is passed for a given argument or property.

{string} name — Name of invalid argument or property
{unknown} value — Value supplied by user
{string?} [reason='is invalid'] — Reason value is invalid
Returns: {NodeError<TypeError>}

Source: src/models/err-invalid-arg-value.ts

`ERR_INVALID_MODULE_SPECIFIER(request[, reason][, base])`

Thrown when an imported module string is an invalid URL, package name, or package subpath specifier.

{string} request — Invalid module specifier
{string?} [reason=''] — Reason request is invalid
{string?} [base=''] — Id of module request was imported from
Returns: {NodeError<TypeError>}

Source: src/models/err-invalid-module-specifier.ts

`ERR_INVALID_PACKAGE_CONFIG(id[, base][, reason])`

Thrown when a package.json file fails parsing.

{string} id — Location of invalid package.json file
{string?} [base=''] — Id of module being imported. May also include where module is being imported from
{string?} [reason=''] — Reason package config is invalid
Returns: {NodeError}

Source: src/models/err-invalid-package-config.ts

`ERR_INVALID_PACKAGE_TARGET(dir, key, target[, internal][, base])`

Thrown when a package.json "exports" or "imports" field contains an invalid target mapping value for the attempted module resolution.

{string} dir — Id of directory containing package.json
{string} key — "exports" or "imports" key
{unknown} target — Invalid package target
{boolean?} [internal=false] — target is "imports"?
{string?} [base=''] — Id of module package.json was imported from
Returns: {NodeError}

Source: src/models/err-invalid-package-target.ts

`ERR_INVALID_URL(input)`

Thrown when an invalid URL is passed to a WHATWG URL constructor or url.parse() to be parsed.

{string} input — URL that failed to parse
Returns: {ErrInvalidUrl}

Source: src/models/err-invalid-url.ts

`ERR_METHOD_NOT_IMPLEMENTED(method)`

Thrown when a method is required but not implemented.

{string} method — Method name
Returns: {NodeError}

Source: src/models/err-method-not-implemented.ts

`ERR_MISSING_OPTION(option)`

Thrown when a required option is missing. For APIs that accept options objects, some options might be mandatory.

{string} option — Option name
Returns: {NodeError<TypeError>}

Source: src/models/err-missing-option.ts

`ERR_MODULE_NOT_FOUND(id, base[, type])`

Thrown when a module file cannot be resolved by the ECMAScript modules loader while attempting an import operation or when loading a program entry point.

{string} id — Id of missing module
{string} base — Id of module id was imported from
{string?} [type='package'] — Module file type
Returns: {NodeError}

Source: src/models/err-module-not-found.ts

`ERR_NETWORK_IMPORT_DISALLOWED(specifier, base, reason)`

Thrown when a network module attempts to load another module that it is not allowed to load.

{string} specifier — Invalid module specifier
{string} base — Id of module specifier was imported from
{string} reason — Reason for error
Returns: {NodeError}

Source: src/models/err-network-import-disallowed.ts

`ERR_OPERATION_FAILED(reason)`

Thrown when an operation has failed. Typically used to signal the general failure of an asynchronous operation.

{string} reason — Reason for operation failure
Returns: {NodeError}

Source: src/models/err-operation-failed.ts

`ERR_PACKAGE_IMPORT_NOT_DEFINED(specifier, base[, dir])`

Thrown when a package.json "imports" field does not define the given package import specifier.

{string} specifier — Invalid package import specifier
{string} base — Id of module specifier was imported from
{string?} [dir=''] — Id of directory containing package.json
Returns: {NodeError<TypeError>}

Source: src/models/err-package-import-not-defined.ts

`ERR_PACKAGE_PATH_NOT_EXPORTED(dir, subpath[, base])`

Thrown when a package.json "exports" field does not export the requested subpath.

{string} dir — Id of directory containing package.json
{string} subpath — Requested subpath
{string?} [base=''] — Id of module subpath was imported from
Returns: {NodeError}

Source: src/models/err-package-path-not-exported.ts

`ERR_UNHANDLED_ERROR([err])`

Thrown when an unhandled error occurs.

{string?} [err=''] — Stringified error
Returns: {NodeError}

Source: src/models/err-unhandled-error.ts

`ERR_UNKNOWN_BUILTIN_MODULE(name)`

Thrown when an unknown builtin module is encountered.

{string} name — Module name
Returns: {NodeError}

Source: src/models/err-unknown-builtin-module.ts

`ERR_UNKNOWN_ENCODING(encoding)`

Thrown when an invalid or unknown encoding option is passed to a Node.js API.

{string} encoding — Invalid or unknown encoding
Returns: {NodeError<TypeError>}

Source: src/models/err-unknown-encoding.ts

`ERR_UNKNOWN_FILE_EXTENSION(ext, id[, suggestion])`

Thrown when an attempt is made to load a module with an unknown or unsupported file extension.

{string} ext — Unknown or unsupported file extension
{string} id — Id of module containing ext
{string?} [suggestion=''] — Recommended fix
Returns: {NodeError<TypeError>}

Source: src/models/err-unknown-file-extension.ts

`ERR_UNKNOWN_MODULE_FORMAT(format, id)`

Thrown when an attempt is made to load a module with an unknown or unsupported format.

{string} format — Unknown or unsupported format
{string} id — Id of module with format
Returns: {NodeError<RangeError>}

Source: src/models/err-unknown-module-format.ts

`ERR_UNSUPPORTED_DIR_IMPORT(id, base)`

Thrown when a directory URL is imported.

{string} id — Module id of directory
{string} base — Id of module id was imported from
Returns: {NodeError}

Source: src/models/err-unsupported-dir-import.ts

`ERR_UNSUPPORTED_ESM_URL_SCHEME(url, supported[, windows])`

Thrown when an unsupported URL scheme is used in an import statement. URL schemes other than file and data are unsupported.

{URL} url — URL containing unsupported scheme
{string[]} supported — Supported URL schemes
{boolean?} [windows=false] — Windows operating system?
Returns: {NodeError}

Source: src/models/err-unsupported-esm-url-scheme.ts

Utilities

`createNodeError(code, Base, message)`

Creates a Node.js error constructor.

If the given error message is a function, constructor arguments are passed to message. If the message is a string, constructor arguments are passed to util.format instead.

{ErrorCode} code — Node.js error code
{B extends ErrorConstructor} Base — Error base class
{M extends any[] | MessageFn | string} message — Error message or message function
Returns: {NodeErrorConstructor<B, M>} NodeError constructor

Source: src/create-node-error.ts

`determineSpecificType(value)`

Determines the specific type of a value for type-mismatch errors.

{unknown} value — Value to evaluate
Returns: {string} Specific type of value

Source: src/determine-specific-type.ts

Types

This package is fully typed with TypeScript. It exports the following definitions:

Enums

Interfaces

Type Definitions

Contribute

See CONTRIBUTING.md.

1.4.0 (2023-01-23)

:package: Build

[08ab50e] deps-dev: Bump @commitlint/cli from 17.4.0 to 17.4.2 (#28)
[9f378a5] deps-dev: Bump @types/fs-extra from 11.0.0 to 11.0.1 (#26)
[0dbfffa] deps-dev: Bump @typescript-eslint/eslint-plugin from 5.48.0 to 5.48.1 (#23)
[9bdcf16] deps-dev: Bump esbuild from 0.16.16 to 0.16.17 (#27)
[24c19d9] deps-dev: Bump esbuild from 0.16.17 to 0.17.1 (#33)

:sparkles: Features

[b16995c] models: ERR_UNKNOWN_BUILTIN_MODULE
[0a0d256] models: handle trailing separators for package directories

Keywords

FAQs

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Package last updated on 23 Jan 2023

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Install

@flex-development/errnode

errnode

Contents

What is this?

When should I use this?

Differences between Node.js

Install

Use

API

Error Models

ERR_AMBIGUOUS_ARGUMENT(name, reason)

ERR_ARG_NOT_ITERABLE(name)

ERR_ASYNC_CALLBACK(name)

ERR_ILLEGAL_CONSTRUCTOR()

ERR_IMPORT_ASSERTION_TYPE_FAILED(id, type)

ERR_IMPORT_ASSERTION_TYPE_MISSING(id, type)

ERR_IMPORT_ASSERTION_TYPE_UNSUPPORTED(type)

ERR_INCOMPATIBLE_OPTION_PAIR(option1, option2)

ERR_INVALID_ARG_TYPE(name, expected, actual)

ERR_INVALID_ARG_VALUE(name, value[, reason])

ERR_INVALID_MODULE_SPECIFIER(request[, reason][, base])

ERR_INVALID_PACKAGE_CONFIG(id[, base][, reason])

ERR_INVALID_PACKAGE_TARGET(dir, key, target[, internal][, base])

ERR_INVALID_URL(input)

ERR_METHOD_NOT_IMPLEMENTED(method)

ERR_MISSING_OPTION(option)

ERR_MODULE_NOT_FOUND(id, base[, type])

ERR_NETWORK_IMPORT_DISALLOWED(specifier, base, reason)

ERR_OPERATION_FAILED(reason)

ERR_PACKAGE_IMPORT_NOT_DEFINED(specifier, base[, dir])

ERR_PACKAGE_PATH_NOT_EXPORTED(dir, subpath[, base])

ERR_UNHANDLED_ERROR([err])

ERR_UNKNOWN_BUILTIN_MODULE(name)

ERR_UNKNOWN_ENCODING(encoding)

ERR_UNKNOWN_FILE_EXTENSION(ext, id[, suggestion])

ERR_UNKNOWN_MODULE_FORMAT(format, id)

ERR_UNSUPPORTED_DIR_IMPORT(id, base)

ERR_UNSUPPORTED_ESM_URL_SCHEME(url, supported[, windows])

Utilities

createNodeError(code, Base, message)

determineSpecificType(value)

Types

Enums

Interfaces

Type Definitions

Contribute

1.4.0 (2023-01-23)

:package: Build

:sparkles: Features

Keywords

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`ERR_AMBIGUOUS_ARGUMENT(name, reason)`

`ERR_ARG_NOT_ITERABLE(name)`

`ERR_ASYNC_CALLBACK(name)`

`ERR_ILLEGAL_CONSTRUCTOR()`

`ERR_IMPORT_ASSERTION_TYPE_FAILED(id, type)`

`ERR_IMPORT_ASSERTION_TYPE_MISSING(id, type)`

`ERR_IMPORT_ASSERTION_TYPE_UNSUPPORTED(type)`

`ERR_INCOMPATIBLE_OPTION_PAIR(option1, option2)`

`ERR_INVALID_ARG_TYPE(name, expected, actual)`

`ERR_INVALID_ARG_VALUE(name, value[, reason])`

`ERR_INVALID_MODULE_SPECIFIER(request[, reason][, base])`

`ERR_INVALID_PACKAGE_CONFIG(id[, base][, reason])`

`ERR_INVALID_PACKAGE_TARGET(dir, key, target[, internal][, base])`

`ERR_INVALID_URL(input)`

`ERR_METHOD_NOT_IMPLEMENTED(method)`

`ERR_MISSING_OPTION(option)`

`ERR_MODULE_NOT_FOUND(id, base[, type])`

`ERR_NETWORK_IMPORT_DISALLOWED(specifier, base, reason)`

`ERR_OPERATION_FAILED(reason)`

`ERR_PACKAGE_IMPORT_NOT_DEFINED(specifier, base[, dir])`

`ERR_PACKAGE_PATH_NOT_EXPORTED(dir, subpath[, base])`

`ERR_UNHANDLED_ERROR([err])`

`ERR_UNKNOWN_BUILTIN_MODULE(name)`

`ERR_UNKNOWN_ENCODING(encoding)`

`ERR_UNKNOWN_FILE_EXTENSION(ext, id[, suggestion])`

`ERR_UNKNOWN_MODULE_FORMAT(format, id)`

`ERR_UNSUPPORTED_DIR_IMPORT(id, base)`

`ERR_UNSUPPORTED_ESM_URL_SCHEME(url, supported[, windows])`

`createNodeError(code, Base, message)`

`determineSpecificType(value)`