Uploaded June 2019 | Updated September 2026, 13 hours ago

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A tutorial on how to get started with implementing the In-App Payments SDK into a Flutter application.

We’ll cover:
- How to get started with Flutter
- Installing the Flutter plugin for the In-App Payments SDK
- Changing the basic Flutter app to include the In-App Payments SDK
- Starting the credit card flow for capturing card details and generating a nonce

Links:
Github Getting Started with Flutter Guide: github.com/square/in-app-payments-flutter-plugin/blob/master/doc/get-started.md
Square In-App Payments SDK Documentation: developer.squareup.com/docs/in-app-payments-sdk/what-it-does
Square In-App Payments SDK for Flutter blog post: developer.squareup.com/blog/square-in-app-payments-sdk-for-flutter

Developer Community: https://squ.re/slack
Twitter: @SquareDev