Square POS SDK for Flutter

A Flutter wrapper to use the Square POS SDK.

With this plugin, your app can easily request payment via the Square POS app on Android and iOS.

Prerequisites

Registered for a Square developer account via Square.
Deployment Target iOS 12.0 or higher.
Android minSdkVersion 21 or higher.

Add URL schemes (iOS)

Add the request URL scheme as a LSApplicationQueriesSchemes key into your Info.plist file to indicate that your application uses the square-commerce-v1 URL scheme to open Square Point of Sale.

<key>LSApplicationQueriesSchemes</key>
<array>
    <string>square-commerce-v1</string>
</array>

Add your custom response URL scheme as CFBundleURLTypes keys in your Info.plist file.

<key>CFBundleURLTypes</key>
<array>
  <dict>
    <key>CFBundleTypeRole</key>
    <string>Editor</string>
    <key>CFBundleURLName</key>
    <string>YOUR_BUNDLE_URL_NAME</string>
    <key>CFBundleURLSchemes</key>
    <array>
      <string>myapp-url-scheme</string>
    </array>
  </dict>
</array>

Installing

Add square_pos to your pubspec.yaml:

dependencies:
  square_pos:

Import square_pos:

import 'package:square_pos/square_pos.dart';

Getting Started

Init SquarePos SDK:

SquarePos.init(applicationID, callbackScheme);

Check if Square POS is installed on device:

SquarePos.canRequest;

Complete a transaction:

var request = SquarePosPaymentRequest(
    money: SquarePosMoney(amountCents: 100, currencyCode: "USD"),
    supportedTenderTypes: [
        SquarePosTenderType.card,
        SquarePosTenderType.cardOnFile,
        SquarePosTenderType.squareGiftCard
    ]);
SquarePos.requestPayment(request);

Available APIs

SquarePos.init(applicationID, callbackScheme);

SquarePos.canRequest;

SquarePos.requestPayment(request);