{"version":3,"sources":["../../../src/frameworks/trpc/index.ts","../../../src/frameworks/trpc/trpc.framework.ts","../../../src/network/request.ts","../../../src/network/response.ts","../../../src/network/utils.ts","../../../src/network/response-stream.ts","../../../src/core/headers.ts","../../../src/core/no-op.ts","../../../src/core/logger.ts","../../../src/core/optional.ts","../../../src/core/stream.ts"],"sourcesContent":["export * from './trpc.framework';\n","//#region\n\nimport type { IncomingMessage, ServerResponse } from 'http';\nimport type { AnyRouter, DataTransformer } from '@trpc/server';\nimport {\n type NodeHTTPCreateContextFn,\n type NodeHTTPCreateContextFnOptions,\n type NodeHTTPHandlerOptions,\n nodeHTTPRequestHandler,\n} from '@trpc/server/adapters/node-http';\nimport type { SingleValueHeaders } from '../../@types';\nimport type { FrameworkContract } from '../../contracts';\nimport { getDefaultIfUndefined, getFlattenedHeadersMap } from '../../core';\n\n//#endregion\n\n/**\n * The transformer that is responsible to transform buffer's input to javascript objects\n *\n * @deprecated You should use {@link JsonBodyParserFramework} instead, is more reliable and enable you to use transformer of trpc to other things.\n * @breadcrumb Frameworks / TrpcFramework\n * @public\n */\nexport class BufferToJSObjectTransformer implements DataTransformer {\n /**\n * Deserialize unknown values to javascript objects\n *\n * @param value - The value to be deserialized\n */\n public deserialize(value?: unknown): any {\n if (value instanceof Buffer) return JSON.parse(value.toString('utf-8'));\n\n return value;\n }\n\n /**\n * The value to be serialized, do nothing because tRPC can handle.\n *\n * @param value - The value to be serialized\n */\n public serialize(value: any): any {\n return value;\n }\n}\n\n/**\n * The context created by this library that allows getting some information from the request and setting the status and header of the response.\n *\n * @breadcrumb Frameworks / TrpcFramework\n * @public\n */\nexport interface TrpcAdapterBaseContext {\n /**\n * The request object that will be forward to your app\n */\n request: IncomingMessage;\n\n /**\n * The response object that will be forward to your app to output the response\n */\n response: ServerResponse;\n\n /**\n * The method to set response status.\n *\n * @param statusCode - The response status that you want\n */\n setStatus(statusCode: number): void;\n\n /**\n * The method to set some header in the response\n *\n * @param name - The name of the header\n * @param value - The value to be set in the header\n */\n setHeader(name: string, value: number | string): void;\n\n /**\n * The method to remove some header from the response\n *\n * @param name - The name of the header\n */\n removeHeader(name: string): void;\n\n /**\n * The method to return the value of some header from the request\n *\n * @param name - The name of the header\n */\n getHeader(name: string): string | undefined;\n\n /**\n * The method to return the request headers\n */\n getHeaders(): SingleValueHeaders;\n\n /**\n * The method to return user's address\n */\n getIp(): string | undefined;\n\n /**\n * The method to return the URL called\n */\n getUrl(): string | undefined;\n\n /**\n * The method to return the HTTP Method in the request\n */\n getMethod(): string | undefined;\n}\n\n/**\n * This is the context merged between {@link TrpcAdapterBaseContext} and the {@link TContext} that you provided.\n *\n * This context will be merged with the context you created with `createContext` inside {@link TrpcFrameworkOptions}.\n * So to make the type work, just send the properties you've added inside {@link TContext}.\n *\n * @example\n * ```typescript\n * type MyCustomContext = { user: { name: string } };\n * type TrpcContext = TrpcAdapterContext; // your final context type to put inside trpc.router\n * ```\n *\n * @breadcrumb Frameworks / TrpcFramework\n * @public\n */\nexport type TrpcAdapterContext = TContext & TrpcAdapterBaseContext;\n\n/**\n * The options to customize the {@link TrpcFramework}\n *\n * @breadcrumb Frameworks / TrpcFramework\n * @public\n */\nexport type TrpcFrameworkOptions = Omit<\n NodeHTTPHandlerOptions,\n 'router' | 'createContext'\n> & {\n createContext?: (\n opts: NodeHTTPCreateContextFnOptions,\n ) =>\n | Omit\n | Promise>;\n};\n\n/**\n * The framework that forwards requests to TRPC handler\n *\n * @breadcrumb Frameworks / TrpcFramework\n * @public\n */\nexport class TrpcFramework<\n TContext extends TrpcAdapterBaseContext,\n TRouter extends AnyRouter = AnyRouter,\n> implements FrameworkContract\n{\n //#region Constructor\n\n /**\n * Default constructor\n */\n constructor(protected readonly options?: TrpcFrameworkOptions) {}\n\n //#endregion\n\n //#region Public Methods\n\n /**\n * {@inheritDoc}\n */\n public sendRequest(\n app: TRouter,\n request: IncomingMessage,\n response: ServerResponse,\n ): void {\n const endpoint = this.getSafeUrlForTrpc(request);\n\n nodeHTTPRequestHandler({\n req: request,\n res: response,\n path: endpoint,\n router: app,\n ...this.options,\n createContext: createContextOptions =>\n this.mergeDefaultContextWithOptionsContext(createContextOptions),\n });\n }\n\n //#endregion\n\n //#region Protected Methods\n\n /**\n * Get safe url that can be used inside Trpc.\n *\n * @example\n * ```typescript\n * const url = getSafeUrlForTrpc('/users?input=hello');\n * console.log(url); // users\n * ```\n *\n * @param request - The request object that will be forward to your app\n */\n protected getSafeUrlForTrpc(request: IncomingMessage): string {\n let url = request.url!;\n\n if (url.startsWith('/')) url = url.slice(1);\n\n if (url.includes('?')) url = url.split('?')[0];\n\n return url;\n }\n\n /**\n * Merge the default context ({@link TrpcAdapterContext}) with the context created by the user.\n *\n * @param createContextOptions - The options sent by trpc to create the context\n */\n protected mergeDefaultContextWithOptionsContext(\n createContextOptions: NodeHTTPCreateContextFnOptions<\n IncomingMessage,\n ServerResponse\n >,\n ): TContext | Promise {\n const createContextFromOptions: NodeHTTPCreateContextFn<\n AnyRouter,\n IncomingMessage,\n ServerResponse\n > = getDefaultIfUndefined(\n this.options?.createContext,\n () =>\n undefined as unknown as Omit,\n );\n\n const resolvedContext = createContextFromOptions(createContextOptions);\n\n if (resolvedContext && resolvedContext.then) {\n return resolvedContext.then(context =>\n this.wrapResolvedContextWithDefaultContext(\n context,\n createContextOptions,\n ),\n );\n }\n\n return this.wrapResolvedContextWithDefaultContext(\n resolvedContext,\n createContextOptions,\n );\n }\n\n /**\n * Wraps the resolved context from the {@link TrpcFrameworkOptions} created with `createContext` and merge\n * with the {@link TrpcAdapterContext} generated by the library.\n *\n * @param resolvedContext - The context created with `createContext` inside {@link TrpcFrameworkOptions}\n * @param createContextOptions - The options sent by trpc to create the context\n */\n protected wrapResolvedContextWithDefaultContext(\n resolvedContext: TContext,\n createContextOptions: NodeHTTPCreateContextFnOptions<\n IncomingMessage,\n ServerResponse\n >,\n ): TContext {\n const request = createContextOptions.req;\n const response = createContextOptions.res;\n\n return {\n ...resolvedContext,\n request,\n response,\n getUrl: () => request.url,\n getMethod: () => request.method,\n getHeaders: () => getFlattenedHeadersMap(request.headers, ',', true),\n setHeader: (header, value) => {\n response.setHeader(header, value);\n },\n removeHeader: header => {\n response.removeHeader(header);\n },\n getHeader: (header: string) => {\n return getFlattenedHeadersMap(request.headers, ',', true)[\n header.toLowerCase()\n ];\n },\n setStatus: (statusCode: number) => {\n response.statusCode = statusCode;\n // force undefined to get default message for the status code\n // ref: https://nodejs.org/dist/latest-v16.x/docs/api/http.html#responsestatusmessage\n response.statusMessage = undefined as any;\n },\n getIp: () => request.connection.remoteAddress,\n };\n }\n\n //#endregion\n}\n","// ATTRIBUTION: https://github.com/dougmoscrop/serverless-http\nimport { IncomingMessage } from 'node:http';\nimport type { AddressInfo } from 'node:net';\nimport type { SingleValueHeaders } from '../@types';\nimport { NO_OP } from '../core';\n\nconst HTTPS_PORT = 443;\n\n/**\n * The properties to create a {@link ServerlessRequest}\n *\n * @breadcrumb Network / ServerlessRequest\n * @public\n */\nexport interface ServerlessRequestProps {\n /**\n * The HTTP Method of the request\n */\n method: string;\n\n /**\n * The URL requested\n */\n url: string;\n\n /**\n * The headers from the event source\n */\n headers: SingleValueHeaders;\n\n /**\n * The body from the event source\n */\n body?: Buffer | Uint8Array;\n\n /**\n * The IP Address from caller\n */\n remoteAddress?: string;\n}\n\n/**\n * The class that represents an {@link http#IncomingMessage} created by the library to represent an actual request to the framework.\n *\n * @breadcrumb Network / ServerlessRequest\n * @public\n */\nexport class ServerlessRequest extends IncomingMessage {\n constructor({\n method,\n url,\n headers,\n body,\n remoteAddress,\n }: ServerlessRequestProps) {\n super({\n encrypted: true,\n readable: true, // credits to @pnkp at https://github.com/CodeGenieApp/serverless-express/pull/692\n remoteAddress,\n address: () => ({ port: HTTPS_PORT }) as AddressInfo,\n on: NO_OP,\n removeListener: NO_OP,\n removeEventListener: NO_OP,\n end: NO_OP,\n destroy: NO_OP,\n } as any);\n\n this.statusCode = 200;\n this.statusMessage = 'OK';\n this.complete = true;\n this.httpVersion = '1.1';\n this.httpVersionMajor = 1;\n this.httpVersionMinor = 1;\n this.method = method;\n this.headers = headers;\n this.body = body;\n this.url = url;\n this.ip = remoteAddress;\n\n this._read = () => {\n this.push(body);\n this.push(null);\n };\n }\n\n ip?: string;\n body?: Buffer | Uint8Array;\n}\n","// ATTRIBUTION: https://github.com/dougmoscrop/serverless-http\nimport { IncomingMessage, ServerResponse } from 'node:http';\nimport type { Socket } from 'node:net';\nimport { NO_OP } from '../core';\nimport { getString } from './utils';\n\nconst headerEnd = '\\r\\n\\r\\n';\nconst endChunked = '0\\r\\n\\r\\n';\n\nconst BODY = Symbol('Response body');\nconst HEADERS = Symbol('Response headers');\n\nfunction addData(stream: ServerlessResponse, data: Uint8Array | string) {\n if (\n Buffer.isBuffer(data) ||\n typeof data === 'string' ||\n data instanceof Uint8Array\n )\n stream[BODY].push(Buffer.from(data));\n else throw new Error(`response.write() of unexpected type: ${typeof data}`);\n}\n\n/**\n * The properties to create a {@link ServerlessResponse}.\n *\n * @breadcrumb Network / ServerlessResponse\n * @public\n */\nexport interface ServerlessResponseProps {\n /**\n * The HTTP Method from request\n */\n method?: string;\n}\n\n/**\n * The class that represents a response instance used to send to the framework and wait until the framework finishes processing the request.\n * Once it's happens, we use the properties from this response to built the response to the cloud.\n *\n * @breadcrumb Network / ServerlessResponse\n * @public\n */\nexport class ServerlessResponse extends ServerResponse {\n constructor({ method }: ServerlessResponseProps) {\n super({ method } as any);\n\n this[BODY] = [];\n this[HEADERS] = {};\n\n this.useChunkedEncodingByDefault = false;\n this.chunkedEncoding = false;\n this._header = '';\n\n // this ignore is used because I need to ignore these write calls:\n // https://github.com/nodejs/node/blob/main/lib/_http_outgoing.js#L934-L935\n // https://github.com/nodejs/node/blob/main/lib/_http_outgoing.js#L937\n let writesToIgnore = 1;\n\n const socket: Partial & { _writableState: any } = {\n _writableState: {},\n writable: true,\n on: NO_OP,\n removeListener: NO_OP,\n destroy: NO_OP,\n cork: NO_OP,\n uncork: NO_OP,\n write: (\n data: Uint8Array | string,\n encoding?: string | null | (() => void),\n cb?: () => void,\n ): any => {\n if (typeof encoding === 'function') {\n cb = encoding;\n encoding = null;\n }\n\n if (this._header === '' || this._wroteHeader) {\n if (!this.chunkedEncoding) addData(this, data);\n else {\n if (writesToIgnore > 0) writesToIgnore--;\n else if (data !== endChunked) {\n addData(this, data);\n writesToIgnore = 3;\n }\n }\n } else {\n const string = getString(data);\n const index = string.indexOf(headerEnd);\n\n if (index !== -1) {\n const remainder = string.slice(index + headerEnd.length);\n\n if (remainder && !this.chunkedEncoding) addData(this, remainder);\n\n this._wroteHeader = true;\n }\n }\n\n if (typeof cb === 'function') cb();\n },\n };\n\n this.assignSocket(socket as unknown as Socket);\n }\n\n _header: string;\n _headers?: Record;\n _wroteHeader?: boolean;\n\n [BODY]: any[];\n [HEADERS]: Record;\n\n get headers(): Record {\n return this[HEADERS];\n }\n\n static from(res: IncomingMessage) {\n const response = new ServerlessResponse({ method: res.method });\n\n response.statusCode = res.statusCode || 0;\n response[HEADERS] = res.headers;\n response[BODY] = (res as any).body ? [Buffer.from((res as any).body)] : [];\n response.end();\n\n return response;\n }\n\n static body(res: ServerlessResponse): Buffer {\n return Buffer.concat(res[BODY]);\n }\n\n static headers(res: ServerlessResponse) {\n const headers = res.getHeaders();\n\n return Object.assign(headers, res[HEADERS]);\n }\n\n override setHeader(\n key: string,\n value: number | string | readonly string[],\n ): any {\n if (this._wroteHeader) this[HEADERS][key] = value;\n else super.setHeader(key, value);\n }\n\n override writeHead(\n statusCode: number,\n statusMessage?: string | any | any[],\n obj?: any | any[],\n ): any {\n const headersObjOrArray =\n typeof statusMessage === 'string' ? obj : statusMessage;\n\n const arrayHeaders = Array.isArray(headersObjOrArray)\n ? headersObjOrArray\n : [headersObjOrArray || {}];\n\n for (const headers of arrayHeaders) {\n for (const name in headers) {\n this.setHeader(name, headers[name]!);\n\n if (!this._wroteHeader) {\n // we only need to initiate super.headers once\n // writeHead will add the other headers itself\n break;\n }\n }\n }\n\n return this.callNativeWriteHead(statusCode, statusMessage, obj);\n }\n\n /**\n * I use ignore here because in nodejs 12.x, statusMessage can be string | OutgoingHttpHeaders\n * But in nodejs \\>=14.x, statusMessage can also be OutgoingHttpHeaders[]\n * I take care of these cases above, but here I can't handle it well, so I give up\n * nodejs 12.x ref: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/node/v12/http.d.ts#L229\n * nodejs 14.x ref: https://github.com/DefinitelyTyped/DefinitelyTyped/blob/master/types/node/v14/http.d.ts#L263\n */\n protected callNativeWriteHead(\n statusCode: number,\n statusMessage?: string | any | any[],\n obj?: any | any[],\n ): this {\n return super.writeHead(statusCode, statusMessage, obj);\n }\n}\n","/**\n * Get the data from a buffer, string, or Uint8Array\n *\n * @breadcrumb Network\n * @param data - The data that was written inside the stream\n */\nexport function getString(data: Buffer | string | unknown) {\n if (Buffer.isBuffer(data)) return data.toString('utf8');\n else if (typeof data === 'string') return data;\n else if (data instanceof Uint8Array) return new TextDecoder().decode(data);\n else throw new Error(`response.write() of unexpected type: ${typeof data}`);\n}\n","import { ServerResponse } from 'node:http';\nimport type { Socket } from 'node:net';\nimport type { Writable } from 'node:stream';\nimport type { BothValueHeaders } from '../@types';\nimport { type ILogger, NO_OP, parseHeaders } from '../core';\nimport { getString } from './utils';\n\n// header or data crlf\nconst crlfBuffer = Buffer.from('\\r\\n');\n\nconst endChunked = '0\\r\\n\\r\\n';\nconst headerEnd = '\\r\\n\\r\\n';\nconst endStatusSeparator = '\\r\\n';\n\n/**\n * The properties to create a {@link ServerlessStreamResponse}.\n *\n * @breadcrumb Network / ServerlessStreamResponse\n * @public\n */\nexport interface ServerlessStreamResponseProps {\n /**\n * The HTTP Method from request\n */\n method?: string;\n\n /**\n * The callback to receive the headers when they are written to the stream\n * You need to return a writable stream be able to continue writing the response\n *\n * @param statusCode - The status code of the response\n * @param headers - The headers of the response\n */\n onReceiveHeaders: (statusCode: number, headers: BothValueHeaders) => Writable;\n\n /**\n * Instance of the logger\n */\n log: ILogger;\n}\n\n/**\n * The class that represents a response instance used to send to the framework and wait until the framework finishes processing the request.\n * This response is specially built to deal with transfer-encoding: chunked\n *\n * @breadcrumb Network / ServerlessStreamResponse\n * @public\n */\nexport class ServerlessStreamResponse extends ServerResponse {\n constructor({\n method,\n onReceiveHeaders,\n log,\n }: ServerlessStreamResponseProps) {\n super({ method } as any);\n\n this.useChunkedEncodingByDefault = true;\n this.chunkedEncoding = true;\n\n let internalWritable: Writable | null = null;\n let firstCrlfBufferEncountered = false;\n let chunkEncountered = false;\n\n const socket: Partial & { _writableState: any } = {\n _writableState: {},\n writable: true,\n on: NO_OP,\n removeListener: NO_OP,\n destroy: NO_OP,\n cork: NO_OP,\n uncork: NO_OP,\n write: (\n data: Uint8Array | string,\n encoding?: string | null | (() => void),\n cb?: () => void,\n ): any => {\n // very unlikely, I don't even know how to reproduce this, but exist on types\n // istanbul ignore if\n if (typeof encoding === 'function') {\n cb = encoding;\n encoding = null;\n }\n\n log.debug('SERVERLESS_ADAPTER:RESPONSE_STREAM:DATA', () => ({\n data: Buffer.isBuffer(data) ? data.toString('utf8') : data,\n encoding,\n }));\n\n if (!internalWritable) {\n const stringData = getString(data);\n const endStatusIndex = stringData.indexOf(endStatusSeparator);\n const status = +stringData.slice(0, endStatusIndex).split(' ')[1];\n const endHeaderIndex = stringData.indexOf(headerEnd);\n\n const headerData = stringData.slice(\n endStatusIndex + 2,\n endHeaderIndex,\n );\n const headers = parseHeaders(headerData);\n log.debug(\n 'SERVERLESS_ADAPTER:RESPONSE_STREAM:FRAMEWORK_HEADERS',\n () => ({\n headers,\n }),\n );\n\n internalWritable = onReceiveHeaders(status, headers);\n\n // If we get an endChunked right after header which means the response body is empty, we need to immediately end the writable\n if (stringData.substring(endHeaderIndex + 4) === endChunked)\n internalWritable.end();\n\n return true;\n }\n\n // node sends the last chunk crlf as a string:\n // https://github.com/nodejs/node/blob/v22.8.0/lib/_http_outgoing.js#L1131\n if (data === endChunked) {\n internalWritable.end(cb);\n return true;\n }\n\n // check for header or data crlf\n // node sends the header and data crlf as a buffer\n // below code is aligned to following node implementation of the HTTP/1.1 chunked transfer coding:\n // https://github.com/nodejs/node/blob/v22.8.0/lib/_http_outgoing.js#L1012-L1015\n // for reference: https://datatracker.ietf.org/doc/html/rfc9112#section-7\n if (Buffer.isBuffer(data) && crlfBuffer.equals(data)) {\n const isHeaderCrlf = !firstCrlfBufferEncountered;\n if (isHeaderCrlf) {\n firstCrlfBufferEncountered = true;\n return true;\n }\n\n const isDataCrlf = firstCrlfBufferEncountered && chunkEncountered;\n if (isDataCrlf) {\n // done with chunk\n firstCrlfBufferEncountered = false;\n chunkEncountered = false;\n return true;\n }\n\n // the crlf *is* the chunk\n }\n\n const isContentLength = !firstCrlfBufferEncountered;\n if (isContentLength) {\n // discard content length\n return true;\n }\n\n // write chunk\n chunkEncountered = true;\n internalWritable.write(data, cb);\n return true;\n },\n };\n\n this.assignSocket(socket as unknown as Socket);\n }\n}\n","//#region Imports\n\nimport type { BothValueHeaders } from '../@types';\n\n//#endregion\n\n/**\n * Transform a header map and make sure the value is not an array\n *\n * @example\n * ```typescript\n * const headers = { 'accept-encoding': 'gzip', 'accept-language': ['en-US', 'en;q=0.9'] };\n * const flattenedHeaders = getFlattenedHeadersMap(headers, ',', true);\n * console.log(flattenedHeaders);\n * // { 'accept-encoding': 'gzip', 'accept-language': 'en-US,en;q=0.9' }\n * ```\n *\n * @param headersMap - The initial headers\n * @param separator - The separator used when we join the array of header's value\n * @param lowerCaseKey - Should put all keys in lowercase\n *\n * @breadcrumb Core / Headers\n * @public\n */\nexport function getFlattenedHeadersMap(\n headersMap: BothValueHeaders,\n separator: string = ',',\n lowerCaseKey: boolean = false,\n): Record {\n return Object.keys(headersMap).reduce((acc, headerKey) => {\n const newKey = lowerCaseKey ? headerKey.toLowerCase() : headerKey;\n const headerValue = headersMap[headerKey];\n\n if (Array.isArray(headerValue)) acc[newKey] = headerValue.join(separator);\n else acc[newKey] = (headerValue ?? '') + '';\n\n return acc;\n }, {});\n}\n\n/**\n * Transforms a header map into a multi-value map header.\n *\n * @example\n * ```typescript\n * const headers = { 'accept-encoding': 'gzip', 'connection': ['keep-alive'] };\n * const multiValueHeaders = getMultiValueHeadersMap(headers);\n * console.log(multiValueHeaders);\n * // { 'accept-encoding': ['gzip'], 'connection': ['keep-alive'] }\n * ```\n *\n * @param headersMap - The initial headers\n *\n * @breadcrumb Core / Headers\n * @public\n */\nexport function getMultiValueHeadersMap(\n headersMap: BothValueHeaders,\n): Record {\n return Object.keys(headersMap).reduce((acc, headerKey) => {\n const headerValue = headersMap[headerKey];\n\n acc[headerKey.toLowerCase()] = Array.isArray(headerValue)\n ? headerValue.map(String)\n : [String(headerValue)];\n\n return acc;\n }, {});\n}\n\n/**\n * The wrapper that holds the information about single value headers and cookies\n *\n * @breadcrumb Core / Headers\n * @public\n */\nexport type FlattenedHeadersAndCookies = {\n /**\n * Just the single value headers\n */\n headers: Record;\n\n /**\n * The list of cookies\n */\n cookies: string[];\n};\n\n/**\n * Transforms a header map into a single value headers and cookies\n *\n * @param headersMap - The initial headers\n *\n * @breadcrumb Core / Headers\n * @public\n */\nexport function getFlattenedHeadersMapAndCookies(\n headersMap: BothValueHeaders,\n): FlattenedHeadersAndCookies {\n return Object.keys(headersMap).reduce(\n (acc, headerKey) => {\n const headerValue = headersMap[headerKey];\n const lowerHeaderKey = headerKey.toLowerCase();\n\n if (Array.isArray(headerValue)) {\n if (lowerHeaderKey !== 'set-cookie')\n acc.headers[headerKey] = headerValue.join(',');\n else acc.cookies.push(...headerValue);\n } else {\n if (lowerHeaderKey === 'set-cookie' && headerValue !== undefined)\n acc.cookies.push(headerValue ?? '');\n else acc.headers[headerKey] = String(headerValue ?? '');\n }\n\n return acc;\n },\n {\n cookies: [],\n headers: {},\n } as FlattenedHeadersAndCookies,\n );\n}\n\n/**\n * Parse HTTP Raw Headers\n * Attribution to {@link https://github.com/kesla/parse-headers/blob/master/parse-headers.js}\n *\n * @param headers - The raw headers\n *\n * @breadcrumb Core / Headers\n * @public\n */\nexport function parseHeaders(\n headers: string,\n): Record {\n if (!headers) return {};\n\n const result = {};\n const headersArr = headers.trim().split('\\n');\n\n for (let i = 0; i < headersArr.length; i++) {\n const row = headersArr[i];\n const index = row.indexOf(':');\n const key = row.slice(0, index).trim().toLowerCase();\n const value = row.slice(index + 1).trim();\n\n if (typeof result[key] === 'undefined') result[key] = value;\n else if (Array.isArray(result[key])) result[key].push(value);\n else result[key] = [result[key], value];\n }\n\n return result;\n}\n\nexport function keysToLowercase>(\n obj: T,\n): { [K in keyof T as Lowercase]: T[K] } {\n const result: any = {};\n for (const [k, v] of Object.entries(obj)) result[k.toLowerCase()] = v;\n\n return result as { [K in keyof T as Lowercase]: T[K] };\n}\n","/**\n * No operation function is used when we need to pass a function, but we don't want to specify any behavior.\n *\n * @breadcrumb Core\n * @public\n */\nexport const NO_OP: (...args: any[]) => any = () => void 0;\n","import { NO_OP } from './no-op';\n\n/**\n * The type representing the possible log levels to choose from.\n *\n * @breadcrumb Core / Logger\n * @public\n */\nexport type LogLevels =\n | 'debug'\n | 'verbose'\n | 'info'\n | 'warn'\n | 'error'\n | 'none';\n\n/**\n * The options to customize {@link ILogger}\n *\n * @breadcrumb Core / Logger\n * @public\n */\nexport type LoggerOptions = {\n /**\n * Select the log level, {@link LogLevels | see more}.\n *\n * @defaultValue error\n */\n level: LogLevels;\n};\n\n/**\n * The log function used in any level.\n *\n * @breadcrumb Core / Logger\n * @public\n */\nexport type LoggerFN = (message: any, ...additional: any[]) => void;\n\n/**\n * The interface representing the logger, you can provide a custom logger by implementing this interface.\n *\n * @breadcrumb Core / Logger\n * @public\n */\nexport type ILogger = Record, LoggerFN>;\n\n/**\n * The symbol used to check against an ILogger instace to verify if that ILogger was created by this library\n *\n * @breadcrumb Core / Logger\n * @public\n */\nconst InternalLoggerSymbol = Symbol('InternalLogger');\n\nconst logLevels: Record<\n LogLevels,\n [level: LogLevels, consoleMethod: keyof Console][]\n> = {\n debug: [\n ['debug', 'debug'],\n ['verbose', 'debug'],\n ['info', 'info'],\n ['error', 'error'],\n ['warn', 'warn'],\n ],\n verbose: [\n ['verbose', 'debug'],\n ['info', 'info'],\n ['error', 'error'],\n ['warn', 'warn'],\n ],\n info: [\n ['info', 'info'],\n ['error', 'error'],\n ['warn', 'warn'],\n ],\n warn: [\n ['warn', 'warn'],\n ['error', 'error'],\n ],\n error: [['error', 'error']],\n none: [],\n};\n\nconst lazyPrint = (value: () => any | unknown) => {\n if (typeof value === 'function') return value();\n\n return value;\n};\n\nconst print =\n (fn: string) =>\n (message: any, ...additional: (() => any)[]) =>\n console[fn](message, ...additional.map(lazyPrint));\n\n/**\n * The method used to create a simple logger instance to use in this library.\n *\n * @remarks Behind the scenes, this simple logger sends the message to the `console` methods.\n *\n * @example\n * ```typescript\n * const logger = createDefaultLogger();\n *\n * logger.error('An error happens.');\n * // An error happens.\n * ```\n *\n * @param level - Select the level of the log\n *\n * @breadcrumb Core / Logger\n * @public\n */\nexport function createDefaultLogger(\n { level }: LoggerOptions = { level: 'error' },\n): ILogger {\n const levels = logLevels[level];\n\n if (!levels) throw new Error('Invalid log level');\n\n const logger = {\n [InternalLoggerSymbol]: true,\n error: NO_OP,\n debug: NO_OP,\n info: NO_OP,\n verbose: NO_OP,\n warn: NO_OP,\n } as ILogger;\n\n for (const [level, consoleMethod] of levels)\n logger[level] = print(consoleMethod);\n\n return logger;\n}\n\n/**\n * The method used to chck if logger was created by this library, or it was defined by the user.\n *\n * @param logger - The instance of the logger to check\n *\n * @breadcrumb Core / Logger\n * @public\n */\nexport function isInternalLogger(logger: ILogger): boolean {\n return !!logger[InternalLoggerSymbol];\n}\n","/**\n * Return the defaultValue whether the value is undefined, otherwise, return the value.\n *\n * @example\n * ```typescript\n * const value1 = getDefaultIfUndefined(undefined, true);\n * const value2 = getDefaultIfUndefined(false, true);\n *\n * console.log(value1);\n * // true\n * console.log(value2);\n * // false\n * ```\n *\n * @param value - The value to be checked\n * @param defaultValue - The default value when value is undefined\n *\n * @breadcrumb Core\n * @public\n */\nexport function getDefaultIfUndefined(\n value: T | undefined,\n defaultValue: T,\n): T {\n if (value === undefined) return defaultValue;\n\n return value;\n}\n","//#region Imports\n\nimport { Readable, Writable } from 'node:stream';\n\n//#endregion\n\n/**\n * Check if stream already ended\n *\n * @param stream - The stream\n *\n * @breadcrumb Core / Stream\n * @public\n */\nexport function isStreamEnded(stream: Readable | Writable): boolean {\n if ('readableEnded' in stream && stream.readableEnded) return true;\n\n if ('writableEnded' in stream && stream.writableEnded) return true;\n\n return false;\n}\n\n/**\n * Wait asynchronous the stream to complete\n *\n * @param stream - The stream\n *\n * @breadcrumb Core / Stream\n * @public\n */\nexport function waitForStreamComplete(\n stream: TStream,\n): Promise {\n if (isStreamEnded(stream)) return Promise.resolve(stream);\n\n return new Promise((resolve, reject) => {\n // Reading the {@link https://github.com/nodejs/node/blob/v12.22.9/lib/events.js#L262 | emit source code},\n // it's almost impossible to complete being called twice because the emit function runs synchronously and removes the other listeners,\n // but I'll leave it at that because I didn't write that code, so I couldn't figure out what the author thought when he wrote this.\n let isComplete = false;\n\n function complete(err: any) {\n /* istanbul ignore next */\n if (isComplete) return;\n\n isComplete = true;\n\n stream.removeListener('error', complete);\n stream.removeListener('end', complete);\n stream.removeListener('finish', complete);\n\n if (err) reject(err);\n else resolve(stream);\n }\n\n stream.once('error', complete);\n stream.once('end', complete);\n stream.once('finish', complete);\n });\n}\n"],"mappings":"4dAAA,IAAAA,EAAA,GAAAC,EAAAD,EAAA,iCAAAE,EAAA,kBAAAC,IAAA,eAAAC,EAAAJ,GCIA,IAAAK,EAKO,2CCRP,IAAAC,EAAgC,gBCAhC,IAAAC,EAAgD,gBCKzC,SAASC,EAAUC,EAAiC,CACzD,GAAI,OAAO,SAASA,CAAI,EAAG,OAAOA,EAAK,SAAS,MAAM,EACjD,GAAI,OAAOA,GAAS,SAAU,OAAOA,EACrC,GAAIA,aAAgB,WAAY,OAAO,IAAI,YAAY,EAAE,OAAOA,CAAI,EACpE,MAAM,IAAI,MAAM,wCAAwC,OAAOA,CAAI,EAAE,CAC5E,CALgBC,EAAAF,EAAA,aDAhB,IAAMG,EAAY;AAAA;AAAA,EACZC,EAAa;AAAA;AAAA,EAEbC,EAAO,OAAO,eAAe,EAC7BC,EAAU,OAAO,kBAAkB,EAEzC,SAASC,EAAQC,EAA4BC,EAA2B,CACtE,GACE,OAAO,SAASA,CAAI,GACpB,OAAOA,GAAS,UAChBA,aAAgB,WAEhBD,EAAOH,CAAI,EAAE,KAAK,OAAO,KAAKI,CAAI,CAAC,MAChC,OAAM,IAAI,MAAM,wCAAwC,OAAOA,CAAI,EAAE,CAC5E,CARSC,EAAAH,EAAA,WA8BF,IAAMI,EAAN,MAAMC,UAA2B,gBAAe,CA1CvD,MA0CuD,CAAAF,EAAA,2BACrD,YAAY,CAAE,OAAAG,CAAO,EAA4B,CAC/C,MAAM,CAAE,OAAAA,CAAO,CAAQ,EAEvB,KAAKR,CAAI,EAAI,CAAC,EACd,KAAKC,CAAO,EAAI,CAAC,EAEjB,KAAK,4BAA8B,GACnC,KAAK,gBAAkB,GACvB,KAAK,QAAU,GAKf,IAAIQ,EAAiB,EAEfC,EAAoD,CACxD,eAAgB,CAAC,EACjB,SAAU,GACV,GAAIC,EACJ,eAAgBA,EAChB,QAASA,EACT,KAAMA,EACN,OAAQA,EACR,MAAON,EAAA,CACLD,EACAQ,EACAC,IACQ,CAMR,GALI,OAAOD,GAAa,aACtBC,EAAKD,EACLA,EAAW,MAGT,KAAK,UAAY,IAAM,KAAK,aACzB,KAAK,gBAEJH,EAAiB,EAAGA,IACfL,IAASL,IAChBG,EAAQ,KAAME,CAAI,EAClBK,EAAiB,GALMP,EAAQ,KAAME,CAAI,MAQxC,CACL,IAAMU,EAASC,EAAUX,CAAI,EACvBY,EAAQF,EAAO,QAAQhB,CAAS,EAEtC,GAAIkB,IAAU,GAAI,CAChB,IAAMC,EAAYH,EAAO,MAAME,EAAQlB,EAAU,MAAM,EAEnDmB,GAAa,CAAC,KAAK,iBAAiBf,EAAQ,KAAMe,CAAS,EAE/D,KAAK,aAAe,EACtB,CACF,CAEI,OAAOJ,GAAO,YAAYA,EAAG,CACnC,EAjCO,QAkCT,EAEA,KAAK,aAAaH,CAA2B,CAC/C,CAEA,QACA,SACA,aAEA,CAACV,CAAI,EACL,CAACC,CAAO,EAER,IAAI,SAA4B,CAC9B,OAAO,KAAKA,CAAO,CACrB,CAEA,OAAO,KAAKiB,EAAsB,CAChC,IAAMC,EAAW,IAAIZ,EAAmB,CAAE,OAAQW,EAAI,MAAO,CAAC,EAE9D,OAAAC,EAAS,WAAaD,EAAI,YAAc,EACxCC,EAASlB,CAAO,EAAIiB,EAAI,QACxBC,EAASnB,CAAI,EAAKkB,EAAY,KAAO,CAAC,OAAO,KAAMA,EAAY,IAAI,CAAC,EAAI,CAAC,EACzEC,EAAS,IAAI,EAENA,CACT,CAEA,OAAO,KAAKD,EAAiC,CAC3C,OAAO,OAAO,OAAOA,EAAIlB,CAAI,CAAC,CAChC,CAEA,OAAO,QAAQkB,EAAyB,CACtC,IAAME,EAAUF,EAAI,WAAW,EAE/B,OAAO,OAAO,OAAOE,EAASF,EAAIjB,CAAO,CAAC,CAC5C,CAES,UACPoB,EACAC,EACK,CACD,KAAK,aAAc,KAAKrB,CAAO,EAAEoB,CAAG,EAAIC,EACvC,MAAM,UAAUD,EAAKC,CAAK,CACjC,CAES,UACPC,EACAC,EACAC,EACK,CACL,IAAMC,EACJ,OAAOF,GAAkB,SAAWC,EAAMD,EAEtCG,EAAe,MAAM,QAAQD,CAAiB,EAChDA,EACA,CAACA,GAAqB,CAAC,CAAC,EAE5B,QAAWN,KAAWO,EACpB,QAAWC,KAAQR,EAGjB,GAFA,KAAK,UAAUQ,EAAMR,EAAQQ,CAAI,CAAE,EAE/B,CAAC,KAAK,aAGR,MAKN,OAAO,KAAK,oBAAoBL,EAAYC,EAAeC,CAAG,CAChE,CASU,oBACRF,EACAC,EACAC,EACM,CACN,OAAO,MAAM,UAAUF,EAAYC,EAAeC,CAAG,CACvD,CACF,EE1LA,IAAAI,EAA+B,gBAQ/B,IAAMC,EAAa,OAAO,KAAK;AAAA,CAAM,ECgB9B,SAASC,EACdC,EACAC,EAAoB,IACpBC,EAAwB,GACA,CACxB,OAAO,OAAO,KAAKF,CAAU,EAAE,OAAO,CAACG,EAAKC,IAAc,CACxD,IAAMC,EAASH,EAAeE,EAAU,YAAY,EAAIA,EAClDE,EAAcN,EAAWI,CAAS,EAExC,OAAI,MAAM,QAAQE,CAAW,EAAGH,EAAIE,CAAM,EAAIC,EAAY,KAAKL,CAAS,EACnEE,EAAIE,CAAM,GAAKC,GAAe,IAAM,GAElCH,CACT,EAAG,CAAC,CAAC,CACP,CAdgBI,EAAAR,EAAA,0BClBT,IAAMS,EAAiCC,EAAA,IAAG,GAAH,SC+C9C,IAAMC,GAAuB,OAAO,gBAAgB,ECjC7C,SAASC,EACdC,EACAC,EACG,CACH,OAAID,IAAU,OAAkBC,EAEzBD,CACT,CAPgBE,EAAAH,EAAA,yBClBhB,IAAAI,GAAmC,kBTqB5B,IAAMC,EAAN,KAA6D,CAvBpE,MAuBoE,CAAAC,EAAA,oCAM3D,YAAYC,EAAsB,CACvC,OAAIA,aAAiB,OAAe,KAAK,MAAMA,EAAM,SAAS,OAAO,CAAC,EAE/DA,CACT,CAOO,UAAUA,EAAiB,CAChC,OAAOA,CACT,CACF,EA6GaC,EAAN,KAIP,CAME,YAA+BC,EAA0C,CAA1C,aAAAA,CAA2C,CAlK5E,MA4JA,CAAAH,EAAA,sBAeS,YACLI,EACAC,EACAC,EACM,CACN,IAAMC,EAAW,KAAK,kBAAkBF,CAAO,KAE/C,0BAAuB,CACrB,IAAKA,EACL,IAAKC,EACL,KAAMC,EACN,OAAQH,EACR,GAAG,KAAK,QACR,cAAeJ,EAAAQ,GACb,KAAK,sCAAsCA,CAAoB,EADlD,gBAEjB,CAAC,CACH,CAiBU,kBAAkBH,EAAkC,CAC5D,IAAII,EAAMJ,EAAQ,IAElB,OAAII,EAAI,WAAW,GAAG,IAAGA,EAAMA,EAAI,MAAM,CAAC,GAEtCA,EAAI,SAAS,GAAG,IAAGA,EAAMA,EAAI,MAAM,GAAG,EAAE,CAAC,GAEtCA,CACT,CAOU,sCACRD,EAI8B,CAW9B,IAAME,EANFC,EACF,KAAK,SAAS,cACd,IAAG,EAEL,EAEiDH,CAAoB,EAErE,OAAIE,GAAmBA,EAAgB,KAC9BA,EAAgB,KAAKE,GAC1B,KAAK,sCACHA,EACAJ,CACF,CACF,EAGK,KAAK,sCACVE,EACAF,CACF,CACF,CASU,sCACRE,EACAF,EAIU,CACV,IAAMH,EAAUG,EAAqB,IAC/BF,EAAWE,EAAqB,IAEtC,MAAO,CACL,GAAGE,EACH,QAAAL,EACA,SAAAC,EACA,OAAQN,EAAA,IAAMK,EAAQ,IAAd,UACR,UAAWL,EAAA,IAAMK,EAAQ,OAAd,aACX,WAAYL,EAAA,IAAMa,EAAuBR,EAAQ,QAAS,IAAK,EAAI,EAAvD,cACZ,UAAWL,EAAA,CAACc,EAAQb,IAAU,CAC5BK,EAAS,UAAUQ,EAAQb,CAAK,CAClC,EAFW,aAGX,aAAcD,EAAAc,GAAU,CACtBR,EAAS,aAAaQ,CAAM,CAC9B,EAFc,gBAGd,UAAWd,EAACc,GACHD,EAAuBR,EAAQ,QAAS,IAAK,EAAI,EACtDS,EAAO,YAAY,CACrB,EAHS,aAKX,UAAWd,EAACe,GAAuB,CACjCT,EAAS,WAAaS,EAGtBT,EAAS,cAAgB,MAC3B,EALW,aAMX,MAAON,EAAA,IAAMK,EAAQ,WAAW,cAAzB,QACT,CACF,CAGF","names":["trpc_exports","__export","BufferToJSObjectTransformer","TrpcFramework","__toCommonJS","import_node_http","import_node_http","import_node_http","getString","data","__name","headerEnd","endChunked","BODY","HEADERS","addData","stream","data","__name","ServerlessResponse","_ServerlessResponse","method","writesToIgnore","socket","NO_OP","encoding","cb","string","getString","index","remainder","res","response","headers","key","value","statusCode","statusMessage","obj","headersObjOrArray","arrayHeaders","name","import_node_http","crlfBuffer","getFlattenedHeadersMap","headersMap","separator","lowerCaseKey","acc","headerKey","newKey","headerValue","__name","NO_OP","__name","InternalLoggerSymbol","getDefaultIfUndefined","value","defaultValue","__name","import_node_stream","BufferToJSObjectTransformer","__name","value","TrpcFramework","options","app","request","response","endpoint","createContextOptions","url","resolvedContext","getDefaultIfUndefined","context","getFlattenedHeadersMap","header","statusCode"]}