post https://api.sandbox.overledger.io/v2/preparation/debit
Transforms a transaction request ready to be signed and returns a request ID for executing. The supported transaction types are “Approve Debit” and “Create Debit”. The ‘Approve Debit’ transaction type will allow you to approve someone to make a pull payment from your account and the “Create Debit” transaction type will create the payment to pull the approved amount from an account.