​

Changed

• SPIN has been replaced with CREDIT_DEBIT_SPIN: A regular spin-based transaction.
• BONUS_PURCHASE has been replaced with CREDIT_DEBIT_PURCHASE: A transaction where the player directly purchases a bonus feature within the game.

​

Added

• DEBIT_SPIN: A regular spin-based transaction.
• DEBIT_JACKPOT: A transaction where the player receives a jackpot payout.

​

Added

​

Changed

• Clarified how duplicate transactionId requests must be handled for /credit-debit and /debit.
• Added expected behavior for retries: duplicates must be treated as a valid case, skipped without re-processing, and return HTTP 200 with the current player balance.
• Documented rollback error handling: /rollback must return HTTP 400 with error_code=INVALID_TRANSACTION when the referenced transaction is not found or has already been rolled back.

​

Changed

• creditAmount: Amount to credit.
• debitAmount: Amount to debit.
• roundFinished: Flag indicating end of the round.

• amount: Amount to credit.