If you are encountering this error it means that either:
- Horizon has not received a confirmation from the Stellar Core server that the transaction you are
trying to submit to the network was included in a ledger in a timely manner.
- Horizon has not sent a response to a reverse-proxy before a specified amount of time has elapsed.
The former case may happen because there was no room for your transaction for 3 consecutive
ledgers. This is because Stellar Core removes each submitted transaction from a queue. To solve
this you can:
- Keep resubmitting the same transaction (with the same sequence number) and wait until it finally
is added to a new ledger.
- Increase the fee in order to prioritize the transaction.
This error returns a
HTTP 504 Error.
As with all errors Horizon returns,
timeout follows the
Problem Details for HTTP APIs
draft specification guide and thus has the following attributes:
||The identifier for the error. This is a URL that can be visited in the browser.
||A short title describing the error.
||An HTTP status code that maps to the error.
||A more detailed description of the error.
"detail": "Your request timed out before completing. Please try your request again. If you are submitting a transaction make sure you are sending exactly the same transaction (with the same sequence number)."
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