IdempotencyInProgress 409

When does this happen?

A previous request with the same Idempotency-Key is still being processed. This guard prevents a concurrent duplicate from executing the payment twice.

Example response

{
  "_tag": "IdempotencyInProgress",
  "type": "IdempotencyInProgress",
  "message": "A request with this Idempotency-Key is still being processed.",
  "docs_url": "https://docs.borderli.dev/errors/IdempotencyInProgress"
}

What to do

Wait a short moment and retry the same request with the same key. Once the original completes you receive its cached response. See Idempotency.

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