Features
Retry
Many things can go wrong in a serverless environment. If your API does not respond with a success status code (2XX), we retry the request to ensure every message will be delivered.
The maximum number of retries depends on your current plan. By default, we retry
the maximum amount of times, but you can set it lower by sending the
Upstash-Retries
header:
The backoff algorithm calculates the retry delay based on the number of retries. Each delay is capped at 1 day.
n | delay |
---|---|
0 | 1s |
1 | 12s |
2 | 2m28s |
3 | 30m8ss |
4 | 6h7m6s |
Upstash-Retried Header
QStash adds the Upstash-Retried
header to requests sent to your API. This
indicates how many times the request has been retried.
Was this page helpful?