Testing section
Testing, Sandbox & Webhook Reliability
Build confidence before production: create sandbox projects, seed merchants and cardholders, simulate crypto deposits and card events, replay signed webhooks, test failure modes, and prove go-live readiness.
4 testing flows
Replay every webhook safely
Go-live has evidence
Interactive flow lab
Practice the system before money is real
Switch between sandbox setup, crypto simulation, card simulation, and webhook reliability.
Endpoint map
Find the test control
Filter sandbox, fixtures, scenario runs, webhooks, replay, failure injection, and go-live endpoints.
Concept notes
The testing ideas worth remembering
Questions
Check your understanding
Pick an answer and the page will explain the reasoning.
Reference snapshot