Swimlanes.io is a free webapp for making sequence diagrams. You simply edit the text on the left and the diagram is updated in real time. You can download your sequence diagrams as images or distribute with a link.
Title: [T-Chain][User Flow] QR Payment My-T Wallet ->> My-T Wallet: scan QRIS/VietQR code, then input amount in IDR/VND to send to merchant My-T Wallet ->> Payment SMC: call `deposit` function ...: {fas-spinner} waiting for tnx Tokoin System -> Tokoin System: listen data changed on blockchain of Payment SMC Tokoin System -> Xendit/VNPay: create an disburment request to send IDR/VND to merchant Xendit/VNPay -> Tokoin System: return `status` Tokoin System ->> My-T Wallet: fire notification