PayPal Developer Docs Example Code

Examples from the official PayPal Developer Docs

Merchant Integration Sequence Diagram

sequenceDiagram
  Actor Buyer
  
  participant Merchant HTML Page
  participant Merchant Server
  participant SDK as PayPal JS SDK
  participant PayPal Orders API
  
  Merchant HTML Page->>SDK: Initialize PayPal Button
  SDK->>Merchant HTML Page: Render PayPal Button
  
  Buyer->>SDK: Click PayPal Button (start checkout)
  SDK->>Merchant HTML Page: createOrder() callback
  Merchant HTML Page->>Merchant Server: Create order
  Merchant Server->>PayPal Orders API: POST v2/orders
  PayPal Orders API->>Merchant Server: Order Created
  
  Merchant Server->>Merchant HTML Page: Return order ID
  Merchant HTML Page->>SDK: orderId
  SDK->>PayPal Orders API: Redirect to Checkout
  Buyer->>PayPal Orders API: Log In using Username & Password
  Buyer->>PayPal Orders API: Complete Checkout
  PayPal Orders API->>SDK: Order Approved
  SDK->>Merchant HTML Page: onApprove() callback
  Merchant HTML Page->>Merchant Server: Capture Order
  Merchant Server->>PayPal Orders API: POST v2/orders/{token}/capture
  PayPal Orders API->>Merchant Server: OK
  
  Merchant Server->>Merchant HTML Page: Order Captured, Checkout Completed

Loading