Async/await style is also much easier to follow, especially for non-node developers, since it makes asynchronous code appear as if it is synchronous. That said I like to use the caolan/async library when dealing with async callbacks and that adds a ton of verbiage overhead in exchange for a more understandable flow of the data (in my opinion). Default value is 120 seconds (2 minutes). retry_policy. backoff_max = 120 # Alternatively you can disable redirects entirely retry_policy = AsyncRetryPolicy. no_retries # All of these settings can also be configured per operation. policies. append (retry_policy) async with AsyncPipelineClient (base_url = url, policies = policies) as client ... Oct 05, 2017 · @ backoff. on_exception (backoff. expo, NexmoRateError, on_backoff = backoff_exception_handler) @ backoff . on_predicate ( backoff . fibo , on_backoff = backoff_predicate_handler , max_tries = 5 ) Here we’re using the backoff library to re-run our API call if it fails, but it will also wait before retrying so that we do not hammer the API ... Supports both sync (e.g. Django, Flask) and async (e.g. Starlette, FastAPI) code. Sane defaults: at least once processing semantics, tasks acknowledged on completion. Automatic retries with exponential backoff for fire-and-forget jobs. Clear task statuses available (e.g. sent, executing, success).