Interview: retry({ delay })

Retry a flaky API with a retry config and a delay via timer(0).

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const { defer, throwError, of, retry, timer } = Rx;

let attempt = 0;
const api$ = defer(() => {
  attempt += 1;
  return attempt < 3 ? throwError(() => new Error('fail')) : of('ok-' + attempt);
});

const result$ = api$.pipe(
  retry({ count: 2, delay: () => timer(0) })
);

result$.subscribe(value => console.log(value));

script.ts // TypeScript

CONSOLE · Console output

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