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API Version 2

API version 2 is available in rippled version 2.0.0 and later. To use this API, clients specify "api_version" : 2 in each request.

For info about how API versioning works, including examples, please view the XLS-22d spec. For details about the implementation of API versioning, view the implementation PR. API versioning ensures existing integrations and users continue to receive existing behavior, while those that request a higher API version will experience new behavior.

Removed methods

In API version 2, the following deprecated methods are no longer available: (#4759)

  • tx_history - Instead, use other methods such as account_tx or ledger with the transactions field set to true.
  • ledger_header - Instead, use the ledger method.

Modifications to JSON transaction element in API version 2

In API version 2, JSON elements for transaction output have been changed and made consistent for all methods which output transactions. (#4775) This helps to unify the JSON serialization format of transactions. (clio#722, #4727)

  • JSON transaction element is named tx_json
  • Binary transaction element is named tx_blob
  • JSON transaction metadata element is named meta
  • Binary transaction metadata element is named meta_blob

Additionally, these elements are now consistently available next to tx_json (i.e. sibling elements), where possible:

  • hash - Transaction ID. This data was stored inside transaction output in API version 1, but in API version 2 is a sibling element.
  • ledger_index - Ledger index (only set on validated ledgers)
  • ledger_hash - Ledger hash (only set on closed or validated ledgers)
  • close_time_iso - Ledger close time expressed in ISO 8601 time format (only set on validated ledgers)
  • validated - Bool element set to true if the transaction is in a validated ledger, otherwise false

This change affects the following methods:

  • tx - Transaction data moved into element tx_json (was inline inside result) or, if binary output was requested, moved from tx to tx_blob. Renamed binary transaction metadata element (if it was requested) from meta to meta_blob. Changed location of hash and added new elements
  • account_tx - Renamed transaction element from tx to tx_json. Renamed binary transaction metadata element (if it was requested) from meta to meta_blob. Changed location of hash and added new elements
  • transaction_entry - Renamed transaction metadata element from metadata to meta. Changed location of hash and added new elements
  • subscribe - Renamed transaction element from transaction to tx_json. Changed location of hash and added new elements
  • sign, sign_for, submit and submit_multisigned - Changed location of hash element.

Modifications to <tt>Payment</tt> transaction JSON schema

When reading Payments, the Amount field should generally not be used. Instead, use delivered_amount to see the amount that the Payment delivered. To clarify its meaning, the Amount field is being renamed to DeliverMax. (#4733)

  • In Payment transaction type, JSON RPC field Amount is renamed to DeliverMax. To enable smooth client transition, Amount is still handled, as described below: (#4733)
    • On JSON RPC input (e.g. submit_multisigned etc. methods), Amount is recognized as an alias to DeliverMax for both API version 1 and version 2 clients.
    • On JSON RPC input, submitting both Amount and DeliverMax fields is allowed only if they are identical; otherwise such input is rejected with rpcINVALID_PARAMS error.
    • On JSON RPC output (e.g. subscribe, account_tx etc. methods), DeliverMax is present in both API version 1 and version 2.
    • On JSON RPC output, Amount is only present in API version 1 and not in version 2.

Modifications to account_info response

  • signer_lists is returned in the root of the response. (In API version 1, it was nested under account_data.) (#3770)
  • When using an invalid signer_lists value, the API now returns an "invalidParams" error. (#4585)
    • (signer_lists must be a boolean. In API version 1, strings were accepted and may return a normal response - i.e. as if signer_lists were true.)

Modifications to <a href="https://xrpl.org/account_tx.html#account_tx" >account_tx</a> response

  • Using ledger_index_min, ledger_index_max, and ledger_index returns invalidParams because if you use ledger_index_min or ledger_index_max, then it does not make sense to also specify ledger_index. In API version 1, no error was returned. (#4571)
    • The same applies for ledger_index_min, ledger_index_max, and ledger_hash. (#4545)
  • Using a ledger_index_min or ledger_index_max beyond the range of ledgers that the server has:
    • returns lgrIdxMalformed in API version 2. Previously, in API version 1, no error was returned. (#4288)
  • Attempting to use a non-boolean value (such as a string) for the binary or forward parameters returns invalidParams (rpcINVALID_PARAMS). Previously, in API version 1, no error was returned. (#4620)

Modifications to <a href="https://xrpl.org/noripple_check.html#noripple_check" >noripple_check</a> response

  • Attempting to use a non-boolean value (such as a string) for the transactions parameter returns invalidParams (rpcINVALID_PARAMS). Previously, in API version 1, no error was returned. (#4620)
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