API calls and Payment flows

sequenceDiagram actor Customer autonumber note over Customer: Checkout process Customer->>Eshop: purchase goods activate Eshop Eshop->>Merchant's Server: create checkout deactivate Eshop activate Merchant's Server Merchant's Server->>Twisto: CheckoutCreate (POST) activate Twisto Twisto->>Merchant's Server: CheckoutCreate response deactivate Twisto Merchant's Server->> Customer: redirect to Twisto Gateway deactivate Merchant's Server activate Customer Customer ->> Twisto: redirected Twisto Gateway webpage deactivate Customer activate Twisto Twisto ->> Twisto: risk evaluation Twisto ->> Merchant's Server: redirect to checkout.redirect_uri deactivate Twisto opt asynchronous noticiations enabled note over Customer: Checkout <br/>status update Twisto ->> Merchant's Server: webhook (checkout.status) end opt immediate capture not enabled note over Customer: Charge Merchant's Server ->> Twisto: ChargeCreate (POST) activate Merchant's Server activate Twisto Twisto ->> Merchant's Server: ChargeCreate response deactivate Twisto deactivate Merchant's Server end opt refund note over Customer: Refund Customer ->> Eshop: returns goods activate Eshop Eshop ->> Merchant's Server: reports a return deactivate Eshop activate Merchant's Server Merchant's Server ->> Twisto: RefundCreate (POST) activate Twisto Twisto ->> Merchant's Server: RefundCreate response deactivate Twisto deactivate Merchant's Server end