Retry on HttpCode

Subsystem Client

Is your feature request related to a problem? Please describe. Sometimes external service returns 500/502 errors, however next call can be successful. In this case do connection retry after a small delay.

Describe the solution you’d like I’d like to have separate Ktor Client feature to automate these retries. For example, it can get handler like needRetry: Response -> Bool on input and configurable retry pauses and retry count.

Motivation to include to ktor Of course retries can be implemented above the call. However client can do them better, because:

• It can preserve low-level resources (like data buffers, resolved headers, etc.)
• It already does retry logic on 401 responses

[e5l]

Hi @imanushin. Thanks for the report, it’s good idea. The retry mechanism is implemented in the HttpSend feature, it looks easy to introduce the feature to use it.

[augustorsouza]

The PR is waiting for a review 😃 after that we can solve this issue