Using response headers in retry logic

[Bazze]

Hey there!

Are there any possibilities to use information from the response of the failed request when defining the response delay? When rate limited for example, some APIs return a Retry-After header with a value indicating when you can try again (like Slack for example). I went through the source code quickly and from what I can see this is not possible at the moment, or?

Thanks

[rubennorte]

Sure, the second parameter of retryDelay is the error, which contains the response. You can just do:

axiosRetry(axios, { retryDelay: (retryCount, error) => {
  return parseFloat(error.response.headers['retry-after']) * 1000;
}});

You should check the value of the header, but you can get the general idea.

[Bazze]

Amazing! Missed there was an extra param passed. Beautiful.