Testing in Sandbox

Create real orders against the sandbox URL, then set their status to whatever you want to test. The same webhooks fire as in production.

curl -X POST 'https://sandbox-api.transfi.com/v3/simulation/order' \
  -H 'Authorization: Basic YOUR_BASE64_CREDENTIALS' \
  -H 'mid: YOUR_MID' \
  -H 'Content-Type: application/json' \
  -d '{ "orderId": "OR-2509291454262384294", "status": "fund_settled" }'

Before you go live

• Every final status handled — success and failure
• Signature verified on the raw body
• Duplicate webhooks handled
• A unique partnerId on every order, stored before the call
• Sender and recipient fields fetched, not hard-coded
• You read available balance, not total
• Production URL and credentials in config, not hard-coded to sandbox