Square SDK and Mobile Samples

Explore samples for OAuth, Square SDK, GraphQL, and mobile.

These sample applications demonstrate a bare-bones implementation of the OAuth flow for Square APIs. Each language-specific application serves a link that directs merchants to the OAuth Permissions form and handles the result of the authorization, which is sent to your application's Redirect URL. For more information and a detailed walkthrough, see OAuth Walkthrough.

Java Node.js PHP Python Ruby

• Bookings API
  Node.js

• Catalog API (product management samples)
  Java

• Gift Cards API
  Node.js

• Invoices API
  Node.js

• Loyalty API (included in the order-ahead sample)
  Node.js

• Orders API (order-ahead sample)
  Node.js

• Snippets API
  Ruby

• Subscriptions API
  Node.js

• Web Payments SDK and Payments API (payment processing samples)
  PHP Ruby Python Node.js Java .NET

Sample applications demonstrating how to use Square GraphQL queries to access data from Square APIs. Each application includes a script you can run to upload test data to your Square account.

• Square and GraphQL - Code Example - Node.js program that runs sample GraphQL queries from the command line.

• Square Dev GraphQL and PKCE Example Application - React Native mobile application (without Expo) that shows some use cases and implementations for GraphQL and PKCE.

• Mobile Payments SDK
  Android iOS Flutter React Native

• In-App Payments SDK
  Android iOS Flutter React Native

• Point of Sale API: Android
  Bikeshop sample Hello Charge