http#ClientRequest TypeScript Examples

protected registerRequestEventDebugHandlers(req: ClientRequest) {
    req.on('close', () => this.requestData.requestEventDebugHandler!('close'));
    req.on('abort', () => this.requestData.requestEventDebugHandler!('abort'));

    req.on('socket', socket => {
      this.requestData.requestEventDebugHandler!('socket', { socket });

      socket.on('error', error => this.requestData.requestEventDebugHandler!('socket-error', { socket, error }));
      socket.on('connect', () => this.requestData.requestEventDebugHandler!('socket-connect', { socket }));
      socket.on('close', withError => this.requestData.requestEventDebugHandler!('socket-close', { socket, withError }));
      socket.on('end', () => this.requestData.requestEventDebugHandler!('socket-end', { socket }));
      socket.on('lookup', (...data) => this.requestData.requestEventDebugHandler!('socket-lookup', { socket, data }));
      socket.on('timeout', () => this.requestData.requestEventDebugHandler!('socket-timeout', { socket }));
    });
  }

public responseRejected(): AxiosRejectedInterceptor {
    // Non 2xx Status Code
    // Add error to Subsegment
    // Close Subsegment
    return (error) => {
      if (this.isAxiosError(error)) {
        try {
          const subSegment = this.getSubSegmentFromConfig(error.config);

          if (subSegment) {
            if (error.request && error.response) {
              const request = error.request as ClientRequest;
              const response = {
                statusCode: error.response.status,
              } as IncomingMessage;

              subSegment.addRemoteRequestData(request, response, true);
            } else if (error.config) {
              // Networking Error
              // TODO: Implement addRemoteRequestData
            }

            subSegment.close(error);
          }
        } catch (tracingError) {
          // response error is "more important" than the error from tracing
          // so we swallow the tracing exception (probably TracingNotInitializedException)
        }
      }

      throw error;
    };
  }

constructor(request: ClientRequest, response: IncomingMessage, payload: ErrorPayload, stack: string, meta: HTTPResponse) {
    super(`[${payload.code}] - ${payload.message}`);
    Object.defineProperty(this, 'request', {
      enumerable: false,
      value: request,
    });
    Object.defineProperty(this, 'response', {
      enumerable: false,
      value: response,
    });
    Object.defineProperty(this, 'statusCode', {
      enumerable: false,
      value: response.statusCode,
    });
    Object.defineProperty(this, 'code', {
      enumerable: false,
      value: payload.code,
    });
    Object.defineProperty(this, 'payload', {
      enumerable: false,
      value: payload,
    });
    Object.defineProperty(this, 'meta', {
      enumerable: false,
      value: meta,
    });
    this.stack = `${this.name}: ${this.message}\n${stack}`;
  }

constructor(request: ClientRequest, response: IncomingMessage, data: Buffer, stack: string) {
    this.request = request;
    this.headersOut = request.getHeaders();
    this.response = response;
    this.headersIn = response.headers;
    this.data = data;
    if (this.response.statusCode! >= 300) {
      if (this.json?.code) this.error = new RESTError(this.request, this.response, this.json, stack, this);
      else this.error = new HTTPError(this.request, this.response, this.json, stack, this);
    } else {
      this.error = null;
    }
  }

constructor(request: ClientRequest, response: IncomingMessage, payload: Record<string | number, unknown>, stack: string, meta: HTTPResponse) {
    super(`${response.statusCode} - ${response.statusMessage}`);
    Object.defineProperty(this, 'request', {
      enumerable: false,
      value: request,
    });
    Object.defineProperty(this, 'response', {
      enumerable: false,
      value: response,
    });
    Object.defineProperty(this, 'statusCode', {
      enumerable: false,
      value: response.statusCode,
    });
    Object.defineProperty(this, 'payload', {
      enumerable: false,
      value: payload,
    });
    Object.defineProperty(this, 'meta', {
      enumerable: false,
      value: meta,
    });
    this.stack = `${this.name}: ${this.message}\n${stack}`;
  }

class NtripClientRequest extends ClientRequest {
    statusVersion?: string;
    sourceSecret?: string;

    constructor(options: NtripClientRequestOptions, cb?: (res: IncomingMessage) => void) {
        super(options, cb);

        this.statusVersion = options.statusVersion;
        this.sourceSecret = options.sourceSecret;
    }

    // noinspection JSUnusedGlobalSymbols
    /**
     * Internal method that stores the request header.
     * Override to include RTSP in status line.
     *
     * @param firstLine HTTP request status line
     * @param headers HTTP headers
     * @private
     */
    _storeHeader(firstLine: string, headers: OutgoingHttpHeaders) {
        if (this.statusVersion !== undefined)
            firstLine = firstLine.slice(0, firstLine.lastIndexOf(' ') + 1) + this.statusVersion + '\r\n';

        if (this.sourceSecret !== undefined)
            firstLine = firstLine.slice(0, firstLine.indexOf(' ') + 1) +
                    this.sourceSecret + firstLine.slice(firstLine.indexOf(' '));

        // @ts-ignore Call private _storeHeader
        super._storeHeader(firstLine, headers);
    }
}

constructor(
    public data: any,
    public headers: any,
    public status: number,
    public statusText: string,
    public request: ClientRequest | XMLHttpRequest
  ) {}

abstract request: ClientRequest;

request!: ClientRequest;

protected req?: ClientRequest;

request: ClientRequest;

protected req!: ClientRequest;

request!: ClientRequest;

on(
        event: "unexpected-response",
        listener: (this: WebSocket, request: ClientRequest, response: IncomingMessage) => void,
    ): this;

once(
        event: "unexpected-response",
        listener: (this: WebSocket, request: ClientRequest, response: IncomingMessage) => void,
    ): this;

off(
        event: "unexpected-response",
        listener: (this: WebSocket, request: ClientRequest, response: IncomingMessage) => void,
    ): this;

addListener(
        event: "unexpected-response",
        listener: (request: ClientRequest, response: IncomingMessage) => void,
    ): this;

removeListener(
        event: "unexpected-response",
        listener: (request: ClientRequest, response: IncomingMessage) => void,
    ): this;

private interceptClientRequest(module: any, protocol: string) {
    const _request = module.request; // BUG! this doesn't work with "import {request} from http", but haven't found an alternative yet

    module.request = function () {
      const url: URL | string | RequestOptions = arguments[0];

      const { host, pathname } =
        url instanceof URL
          ? url
          : typeof url === 'string'
          ? new URL(url) // TODO: this may throw invalid URL
          : {
              host: (url.host || url.hostname || 'unknown') + ':' + (url.port || 80),
              pathname: url.path || '/',
            };

      const operation = pathname.replace(/\?.*$/g, '');
      const method = arguments[url instanceof URL || typeof url === 'string' ? 1 : 0]?.method || 'GET';
      const span = ignoreHttpMethodCheck(method)
        ? DummySpan.create()
        : ContextManager.current.newExitSpan(operation, Component.HTTP);

      if (span.depth)
        // if we inherited from a higher level plugin then do nothing, higher level should do all the work and we don't duplicate here
        return _request.apply(this, arguments);

      span.start();

      try {
        span.component = Component.HTTP;
        span.layer = SpanLayer.HTTP;
        span.peer = host;

        span.tag(Tag.httpURL(protocol + '://' + host + pathname));
        span.tag(Tag.httpMethod(method));

        const copyStatusAndWrapEmit = (res: any) => {
          span.tag(Tag.httpStatusCode(res.statusCode));

          if (res.statusCode && res.statusCode >= 400) span.errored = true;

          if (res.statusMessage) span.tag(Tag.httpStatusMsg(res.statusMessage));

          wrapEmit(span, res, false);
        };

        const responseCB = function (this: any, res: any) {
          // may wrap callback instead of event because it procs first
          span.resync();

          copyStatusAndWrapEmit(res);

          try {
            if (callback) return callback.apply(this, arguments);
          } catch (err) {
            span.error(err);

            throw err;
          } finally {
            span.async();
          }
        };

        const idxCallback = typeof arguments[2] === 'function' ? 2 : typeof arguments[1] === 'function' ? 1 : 0;
        const callback = arguments[idxCallback];

        if (idxCallback) arguments[idxCallback] = responseCB;

        let arg0 = arguments[0];
        const expect = arg0.headers && (arg0.headers.Expect || arg0.headers.expect);

        if (expect === '100-continue') {
          span.inject().items.forEach((item) => {
            arg0.headers[item.key] = item.value;
          });
        }

        const req: ClientRequest = _request.apply(this, arguments);

        span
          .inject()
          .items.filter((item) => expect != '100-continue')
          .forEach((item) => req.setHeader(item.key, item.value));

        wrapEmit(span, req, true, 'close');

        req.on('timeout', () => span.log('Timeout', true));
        req.on('abort', () => span.log('Abort', (span.errored = true)));

        if (!idxCallback) req.on('response', copyStatusAndWrapEmit);

        span.async();

        return req;
      } catch (err) {
        span.error(err);
        span.stop();

        throw err;
      }
    };
  }