@trpc/client/dist/httpUtils-CB_100ND.mjs.map

The tRPC client library

{"version":3,"file":"httpUtils-CB_100ND.mjs","names":[],"sources":["../src/getFetch.ts","../src/internals/signals.ts","../src/links/internals/httpUtils.ts"],"sourcesContent":["import type { FetchEsque, NativeFetchEsque } from './internals/types';\n\ntype AnyFn = (...args: any[]) => unknown;\n\nconst isFunction = (fn: unknown): fn is AnyFn => typeof fn === 'function';\n\nexport function getFetch(\n  customFetchImpl?: FetchEsque | NativeFetchEsque,\n): FetchEsque {\n  if (customFetchImpl) {\n    return customFetchImpl as FetchEsque;\n  }\n\n  // eslint-disable-next-line @typescript-eslint/unbound-method\n  if (typeof window !== 'undefined' && isFunction(window.fetch)) {\n    return window.fetch.bind(window);\n  }\n\n  if (typeof globalThis !== 'undefined' && isFunction(globalThis.fetch)) {\n    return globalThis.fetch;\n  }\n\n  throw new Error('No fetch implementation found');\n}\n","import type { Maybe } from '@trpc/server/unstable-core-do-not-import';\n\n/**\n * Like `Promise.all()` but for abort signals\n * - When all signals have been aborted, the merged signal will be aborted\n * - If one signal is `null`, no signal will be aborted\n */\nexport function allAbortSignals(...signals: Maybe<AbortSignal>[]): AbortSignal {\n  const ac = new AbortController();\n\n  const count = signals.length;\n\n  let abortedCount = 0;\n\n  const onAbort = () => {\n    if (++abortedCount === count) {\n      ac.abort();\n    }\n  };\n\n  for (const signal of signals) {\n    if (signal?.aborted) {\n      onAbort();\n    } else {\n      signal?.addEventListener('abort', onAbort, {\n        once: true,\n      });\n    }\n  }\n\n  return ac.signal;\n}\n\n/**\n * Like `Promise.race` but for abort signals\n *\n * Basically, a ponyfill for\n * [`AbortSignal.any`](https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal/any_static).\n */\nexport function raceAbortSignals(\n  ...signals: Maybe<AbortSignal>[]\n): AbortSignal {\n  const ac = new AbortController();\n\n  for (const signal of signals) {\n    if (signal?.aborted) {\n      ac.abort();\n    } else {\n      signal?.addEventListener('abort', () => ac.abort(), { once: true });\n    }\n  }\n\n  return ac.signal;\n}\n\nexport function abortSignalToPromise(signal: AbortSignal): Promise<never> {\n  return new Promise((_, reject) => {\n    if (signal.aborted) {\n      reject(signal.reason);\n      return;\n    }\n    signal.addEventListener(\n      'abort',\n      () => {\n        reject(signal.reason);\n      },\n      { once: true },\n    );\n  });\n}\n","import type {\n  AnyClientTypes,\n  CombinedDataTransformer,\n  Maybe,\n  ProcedureType,\n  TRPCAcceptHeader,\n  TRPCResponse,\n} from '@trpc/server/unstable-core-do-not-import';\nimport { getFetch } from '../../getFetch';\nimport type {\n  FetchEsque,\n  RequestInitEsque,\n  ResponseEsque,\n} from '../../internals/types';\nimport type { TransformerOptions } from '../../unstable-internals';\nimport { getTransformer } from '../../unstable-internals';\nimport type { HTTPHeaders } from '../types';\n\n/**\n * @internal\n */\nexport type HTTPLinkBaseOptions<\n  TRoot extends Pick<AnyClientTypes, 'transformer'>,\n> = {\n  url: string | URL;\n  /**\n   * Add ponyfill for fetch\n   */\n  fetch?: FetchEsque;\n  /**\n   * Send all requests `as POST`s requests regardless of the procedure type\n   * The HTTP handler must separately allow overriding the method. See:\n   * @see https://trpc.io/docs/rpc\n   */\n  methodOverride?: 'POST';\n} & TransformerOptions<TRoot>;\n\nexport interface ResolvedHTTPLinkOptions {\n  url: string;\n  fetch?: FetchEsque;\n  transformer: CombinedDataTransformer;\n  methodOverride?: 'POST';\n}\n\nexport function resolveHTTPLinkOptions(\n  opts: HTTPLinkBaseOptions<AnyClientTypes>,\n): ResolvedHTTPLinkOptions {\n  return {\n    url: opts.url.toString(),\n    fetch: opts.fetch,\n    transformer: getTransformer(opts.transformer),\n    methodOverride: opts.methodOverride,\n  };\n}\n\n// https://github.com/trpc/trpc/pull/669\nfunction arrayToDict(array: unknown[]) {\n  const dict: Record<number, unknown> = {};\n  for (let index = 0; index < array.length; index++) {\n    const element = array[index];\n    dict[index] = element;\n  }\n  return dict;\n}\n\nconst METHOD = {\n  query: 'GET',\n  mutation: 'POST',\n  subscription: 'PATCH',\n} as const;\n\nexport interface HTTPResult {\n  json: TRPCResponse;\n  meta: {\n    response: ResponseEsque;\n    responseJSON?: unknown;\n  };\n}\n\ntype GetInputOptions = {\n  transformer: CombinedDataTransformer;\n} & ({ input: unknown } | { inputs: unknown[] });\n\nexport function getInput(opts: GetInputOptions) {\n  return 'input' in opts\n    ? opts.transformer.input.serialize(opts.input)\n    : arrayToDict(\n        opts.inputs.map((_input) => opts.transformer.input.serialize(_input)),\n      );\n}\n\nexport type HTTPBaseRequestOptions = GetInputOptions &\n  ResolvedHTTPLinkOptions & {\n    type: ProcedureType;\n    path: string;\n    signal: Maybe<AbortSignal>;\n  };\n\ntype GetUrl = (opts: HTTPBaseRequestOptions) => string;\ntype GetBody = (opts: HTTPBaseRequestOptions) => RequestInitEsque['body'];\n\nexport type ContentOptions = {\n  trpcAcceptHeader?: TRPCAcceptHeader;\n  trpcAcceptHeaderKey?: 'trpc-accept' | 'accept';\n  contentTypeHeader?: string;\n  getUrl: GetUrl;\n  getBody: GetBody;\n};\n\nexport const getUrl: GetUrl = (opts) => {\n  const parts = opts.url.split('?') as [string, string?];\n  const base = parts[0].replace(/\\/$/, ''); // Remove any trailing slashes\n\n  let url = base + '/' + opts.path;\n  const queryParts: string[] = [];\n\n  if (parts[1]) {\n    queryParts.push(parts[1]);\n  }\n  if ('inputs' in opts) {\n    queryParts.push('batch=1');\n  }\n  if (opts.type === 'query' || opts.type === 'subscription') {\n    const input = getInput(opts);\n    if (input !== undefined && opts.methodOverride !== 'POST') {\n      queryParts.push(`input=${encodeURIComponent(JSON.stringify(input))}`);\n    }\n  }\n  if (queryParts.length) {\n    url += '?' + queryParts.join('&');\n  }\n  return url;\n};\n\nexport const getBody: GetBody = (opts) => {\n  if (opts.type === 'query' && opts.methodOverride !== 'POST') {\n    return undefined;\n  }\n  const input = getInput(opts);\n  return input !== undefined ? JSON.stringify(input) : undefined;\n};\n\nexport type Requester = (\n  opts: HTTPBaseRequestOptions & {\n    headers: () => HTTPHeaders | Promise<HTTPHeaders>;\n  },\n) => Promise<HTTPResult>;\n\nexport const jsonHttpRequester: Requester = (opts) => {\n  return httpRequest({\n    ...opts,\n    contentTypeHeader: 'application/json',\n    getUrl,\n    getBody,\n  });\n};\n\n/**\n * Polyfill for DOMException with AbortError name\n */\nclass AbortError extends Error {\n  constructor() {\n    const name = 'AbortError';\n    super(name);\n    this.name = name;\n    this.message = name;\n  }\n}\n\nexport type HTTPRequestOptions = ContentOptions &\n  HTTPBaseRequestOptions & {\n    headers: () => HTTPHeaders | Promise<HTTPHeaders>;\n  };\n\n/**\n * Polyfill for `signal.throwIfAborted()`\n *\n * @see https://developer.mozilla.org/en-US/docs/Web/API/AbortSignal/throwIfAborted\n */\nconst throwIfAborted = (signal: Maybe<AbortSignal>) => {\n  if (!signal?.aborted) {\n    return;\n  }\n  // If available, use the native implementation\n  signal.throwIfAborted?.();\n\n  // If we have `DOMException`, use it\n  if (typeof DOMException !== 'undefined') {\n    throw new DOMException('AbortError', 'AbortError');\n  }\n\n  // Otherwise, use our own implementation\n  throw new AbortError();\n};\n\nexport async function fetchHTTPResponse(opts: HTTPRequestOptions) {\n  throwIfAborted(opts.signal);\n\n  const url = opts.getUrl(opts);\n  const body = opts.getBody(opts);\n  const method = opts.methodOverride ?? METHOD[opts.type];\n  const resolvedHeaders = await (async () => {\n    const heads = await opts.headers();\n    if (Symbol.iterator in heads) {\n      return Object.fromEntries(heads);\n    }\n    return heads;\n  })();\n  const headers = {\n    ...(opts.contentTypeHeader && method !== 'GET'\n      ? { 'content-type': opts.contentTypeHeader }\n      : {}),\n    ...(opts.trpcAcceptHeader\n      ? { [opts.trpcAcceptHeaderKey ?? 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