Timeouts and retries

[jdconley]

I've run into issues recently where Polygon is sometimes taking minutes to timeout on requests so was just looking into timeouts and retries. It'd be quite useful if there was a builtin way to specify the request timeout and retry semantics.

If you used something like fetch-retry under the hood and let us supply options that'd be helpful.

And likewise a timeout option that used an AbortController signal with fetch would be great.

[jdconley]

FWIW I went with something like this as a wrapper, using retry-as-promised.

  private makeRequest<TResult>(
    action: (client: IRestClient) => Promise<TResult>,
  ): Promise<TResult> {
    return retry(
      async () => {
        const timeoutController = new AbortController();
        const client = restClient(
          this.polygonApiKey,
          'https://api.polygon.io',
          {
            signal: timeoutController.signal,
          },
        );
        const timeout = setTimeout(
          () => timeoutController.abort('Timeout calling Polygon API'),
          5000,
        );

        try {
          return await action(client);
        } finally {
          clearTimeout(timeout);
        }
      },
      {
        max: 5,
        name: 'Polygon API',
      },
    );
  }