Response Time Limits
Acknowledgement
All HTTP requests received over the Electrum API need to be acknowledged within 1 second. A positive acknowledgement will take the form of a 2xx HTTP status. A valid error response is considered a negative acknowledgement.
If no acknowledgement is received within the time limit, then the request may be retried. It is therefore important to make sure that the processing of requests is idempotent. That is, if you receive a request that is identical to a previously processed message, then it should be treated as a duplicate and not affect the outcome of the request in any way.
| Scheme | Event | Limit |
|---|---|---|
| All | Acknowledge receipt of incoming message | 1 sec |
Scheme Mandated Processing Times
Certain processing time limits must be adhered to according to the respective payment schemes' service-level agreements.
| Scheme | Event | Limit |
|---|---|---|
PayShap | The end-to-end processing time for the proxy resolution phase of the transaction. This includes the following steps:
Note that the time taken for the customer to respond to the prompt is not included in this limit. | 10 sec |
| PayShap | The end-to-end processing time to complete a payment after the sender has confirmed the account holder name. | 10 sec |
| RTC | The end-to-end time to complete a payment after initiation. | 60 sec |