Error handling for fetch() in Aurelia

Question

I have an API that includes a useful description of what went wrong when an error is raised by the server (status = 500). The description comes as part of the response text. My

Answer 1

This should do the trick:

function callRemoteService(apiName, timeout = 5000) {
  return Promise.race([
    this.http.fetch(apiName)
      .then(
        r => r.json(),
        r => r.text().then(text => throw new Error(text))
      ),
    this.waitForServer(timeout)
  ]);
}

by the way, I like what you're doing with Promise.race- nice technique!