Function uri

packages/engine.io-client/lib/transports/polling.ts:161–175

* Generates uri for connection. * * @private

()

   * @private
   */
  protected uri() {
    const schema = this.opts.secure ? "https" : "http";
    const query: { b64?: number; sid?: string } = this.query || {};

    // cache busting is forced
    if (false !== this.opts.timestampRequests) {
      query[this.opts.timestampParam] = randomString();
    }

    if (!this.supportsBinary && !query.sid) {
      query.b64 = 1;
    }

    return this.createUri(schema, query);
  }

  abstract doPoll();
  abstract doWrite(data: string, callback: () => void);