POST
endpoints, the API uses client-supplied idempotency keys to ensure that requests can be retried safely without performing the same operation twice. Repeated calls to those endpoints with the same idempotency key will return the cached response from the first call. Keys are expected to be set as header parameters with "X-Idempotency-Key".{"amount": "40000000", "decimals": 3, "currency": "EUR"}
means "EUR 40,000.000".