Common API Topics

These are topics that are applicable across many APIs:

• API keys
• API lifecycle
• Authentication
• Cancellations
• Direct integration and PSP integration
• Errors
• HTTP headers
• HTTP response codes
• isApp
• orderid
• Polling guidelines
• Redirects
• Refunds
• Reserve and capture
• Timeouts
• TransactionText
• URL validation
• Vipps landing page