High-level sequence diagram

Here's a simplified view of the request/response flow across the network when you use the Bango Payment API. Each payment, and any subsequent refund, involves the following:

1. Identifying the user
2. Authorizing the payment – creating a transaction ID and reserving funds, where possible
3. Capturing the payment – finalizing the transaction and transferring funds from the user
4. Refunding the payment (where necessary)

See Bango Payment / Identifying users and Bango Payment / Transactions for detailed information. Some steps might use more than one HTTP request/response between the store and the Bango Platform.