Introduction to Search Enginer Optimization

Placeholder for Third Party Integrations

Peace and Love
Shafik Walakaka

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Table of contents

• Adyen Online Payments
• Decoupled systems for maintainability
• How API Works
• Cross-Border Payments 101
• From Postman to Production Flow
• When Sandbox Behavior Doesn't Match the Docs
• What I Couldn't Test (Yet)
• Setting Up an ADFS Server for SAML Testing
• Verifying and Troubleshooting the ADFS Side
• Walking Through a Test SAML App, Step by Step
• Common ADFS/SAML Issues and How to Fix Them
• Understanding the SPCP (SingPass/Corppass) OAuth Flow
• Walking the Full Transfer State Machine
• Adyen POS / Terminal API — Architecture and Background
• Setting Up a Mock Adyen Terminal Locally
• Approved Sync Payment — Adyen Terminal API Walkthrough
• Reversal — Adyen Terminal API Unhappy Path
• Declined Payment — Insufficient Balance (Adyen Terminal API)
• Why the Cloud Device API Can't Be Tested Without Hardware