GENERAL REQUIREMENTS

• sends payments to Ripple REST upon writing to a SQL table
• verifies payments using Ripple
• standard error messages for HTTP calls
• record external_transaction_id of deposit for n ripple transactions
• ripple_transaction_id of ripple_transaction for n withdrawals
• query to return n outgoing ripple transactions given a deposit
• query to return n withdrawals given incoming ripple transaction
• set flag to prevent trust lines to hot wallet
• set trust lines from hot wallet to cold wallet

CALLBACKS

• POST callback when a withdrawal is marked as queued
• POST callback upon notification of outbound ripple transaction

OUTBOUND RIPPLE TRANSACTIONS

• successes should be marked as sent
• tem failures should be marked as failed
• tel failures should be marked as failed
• tef failures should be marked as failed
• tej failures should be marked as failed
• ter failures should be retried

INBOUND RIPPLE TRANSACTIONS

• tec failures should be marked as failed
• tes success should marked as succeeded

NOTIFICATIONS

• poll ripple rest for outbound payment notitifications of tes transactions
• tec failures should be marked as failed
• tec failures should should record the transaction hash
• tes success should be marked as incoming
• tes success should record the transaction hash

DEPOSITS STATE MODEL

• queued
• processed

WITHDRAWALS STATE MODEL

• queued
• notified
• processed

RIPPLE TRANSACTIONS OUTGOING STATE MODEL

• outgoing
• sent
• failed
• succeeded

RIPPLE TRANSACTIONS INCOMING STATE MODEL

• incoming
• failed
• succeeded