/flutterflow-integrations

FlutterFlow and Authorize.Net integration: Step-by-Step Guide 2024

Learn how to effortlessly integrate FlutterFlow with Authorize.Net in this step-by-step guide. Simplify your payment processing with clear, concise instructions.

What is Authorize.Net?

Authorize.Net is a payment gateway service provider allowing merchants to accept credit card and electronic check payments through their website and over an Internet Protocol (IP) connection. It provides the complex infrastructure and security necessary to ensure fast, reliable and secure transmission of transaction data. Authorize.Net manages the routing of transactions just like a traditional credit card swipe machine you find in the physical retail world, however, Authorize.Net uses the Internet instead of a phone line.

Matt Graham, CEO of Rapid Developers

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How to integrate FlutterFlow with Authorize.Net?

 

Step 1: Set Up Your Authorize.Net Account

  • Sign Up: If you haven't already, go to Authorize.Net and sign up for an account.
  • API Credentials: After signing in, navigate to Account -> API Credentials & Keys.
  • API Login ID: Note down the API Login ID.
  • Transaction Key: Generate a new Transaction Key and make sure to store it securely.
 

Step 2: Configure your API Settings on Authorize.Net

  • Security Settings: Access the Account -> Security Settings -> General Security Settings section.
  • IP Address Whitelist: Add your server or application IP address to the IP address whitelist if needed.
 

Step 3: Prepare Your FlutterFlow Project

  • Create a new Project: If you don't already have one, create a new project in FlutterFlow or open an existing project where you wish to integrate Authorize.Net.
  • Enable Auth: Go to your project settings in FlutterFlow and enable authentication if you plan to link payments to authenticated users.
 

Step 4: Add Necessary Dependencies to Your Flutter Project

  • Dependencies: Open your pubspec.yaml file and add the required dependencies.
    dependencies:
      flutter:
        sdk: flutter
      http: ^0.13.3  # Or latest version
      # Add other dependencies as needed
    
  • Run flutter pub get to install the dependencies.
 

Step 5: Setting Up Backend Functions

  • Create Functions: You’ll need backend functions to handle communication with the Authorize.Net API.
  • REST API: Set up a server or cloud function that can handle Authorize.Net transactions. This may involve setting up an endpoint in Node.js, Python, or another language of your choice. Here's a basic outline using Node.js:
    const express = require('express');
    const axios = require('axios');
    const app = express();
    const port = 3000;
    
    app.post('/charge-credit-card', async (req, res) => {
      try {
        const response = await axios.post('https://apitest.authorize.net/xml/v1/request.api', {
          createTransactionRequest: {
            merchantAuthentication: {
              name: 'YOUR_API_LOGIN\_ID',
              transactionKey: 'YOUR_TRANSACTION_KEY'
            },
            transactionRequest: {
              transactionType: 'authCaptureTransaction',
              amount: req.body.amount,
              payment: {
                creditCard: {
                  cardNumber: req.body.cardNumber,
                  expirationDate: req.body.expirationDate,
                  cardCode: req.body.cardCode
                }
              }
            }
          }
        });
        res.json(response.data);
      } catch (error) {
        res.status(500).send(error.message);
      }
    });
    
    app.listen(port, () => {
      console.log(`Server running at http://localhost:${port}/`);
    });
  • Deployment: Deploy your backend code using a service like Heroku, AWS Lambda, Google Cloud Functions, or another platform.
 

Step 6: Integrating the Backend in FlutterFlow

  • API Calls: Add API calls in FlutterFlow to interact with your backend functions.
  • API Setup:
    • Navigate to API Calls in FlutterFlow.
    • Add a new API Call with details pointing to your backend endpoint.
    • Base URL: The URL where your backend is hosted.
    • Endpoint: The specific endpoint like /charge-credit-card.
    • Method: POST.
  • Parameters:
    • Define the parameters that will be sent, such as amount, cardNumber, expirationDate, and cardCode.
 

Step 7: Build the User Interface for Payment

  • Payment Form: Create input fields in your FlutterFlow app where users can enter their payment details.
  • Fields: Include fields for Card Number, Expiration Date, CVV, and Amount.
  • Button: Add a button that will trigger the payment process.
  • On-Click Action: Attach an action to the button that will call your API endpoint using the API Call configured earlier.
 

Step 8: Testing the Integration

  • Sandbox Mode: Test the integration using Authorize.Net's sandbox environment before going live. Ensure that you have replaced YOUR_API_LOGIN_ID and YOUR_TRANSACTION\_KEY with sandbox credentials.
  • Debugging: Check for errors in both your backend and FlutterFlow app to ensure everything is working correctly.
 

Step 9: Going Live

  • Live Credentials: Replace the sandbox credentials with live credentials in your backend function.
  • Final Testing: Conduct final tests to ensure the live environment is functioning properly.
  • Launch: Once everything is tested and verified, go live with your application.
 

Step 10: Monitor and Maintain

  • Transaction Monitoring: Regularly check Authorize.Net’s transaction logs to monitor activities.
  • Error Handling: Implement robust error handling in both your backend and FlutterFlow to manage any potential issues.
 

FlutterFlow and Authorize.Net integration usecase

Scenario:
A subscription-based fitness app wants to simplify user payments and subscription handling. They use FlutterFlow to create a seamless user experience for both the app and the web platform. To securely process payments and manage recurring subscriptions, they decide to integrate their platform with Authorize.Net.

Solution: Integrating FlutterFlow with Authorize.Net

Subscription Setup Page:

  • The development team utilizes FlutterFlow to design a subscription setup page within their mobile app and web platform. This page includes fields for users to enter their payment information and choose their subscription plan.

Setting Up the Integration:

  • The team incorporates the Authorize.Net API integration within FlutterFlow and configures it with their Authorize.Net API credentials.
  • They create workflows in FlutterFlow that activate once a user submits their payment data and subscription preferences on the setup page.

Payment Processing Workflow:

  • When a user enters their payment information and submits the form, the workflow is triggered.
  • The submitted payment details (e.g., credit card number, expiration date, CVV) are securely sent to Authorize.Net using the configured API action.
  • Authorize.Net processes the payment, and upon successful transaction, a subscription is created and associated with the user account in the app.

Managing Subscriptions:

  • Users can view and manage their subscriptions through an account management page also built in FlutterFlow.
  • The team sets up additional workflows to handle subscription upgrades, downgrades, and cancellations by interacting with Authorize.Net's API.

Notifications and Alerts:

  • When a subscription is about to expire or a payment fails, Authorize.Net sends notifications.
  • The app receives these notifications via webhook and then uses FlutterFlow's functionality to alert users within the app, prompting them to take action.

Monitoring and Analytics:

  • The integration allows for real-time tracking of all payment transactions and subscription activities within Authorize.Net's dashboard.
  • The fitness app team can monitor the status of subscriptions and payment trends, using this data to make informed business decisions.

Benefits:

  • Security: By using Authorize.Net, the fitness app ensures that all payment transactions are handled securely, complying with industry standards.
  • Efficiency: Automating the payment and subscription processes reduces manual work and minimizes errors.
  • User Experience: The integration provides a seamless and intuitive experience for users to manage their subscriptions directly within the app.
  • Real-time Insights: Access to real-time data on payments and subscriptions helps the business to track performance and respond to issues promptly.
  • Scalability: The solution supports the growing user base, accommodating new subscriptions easily without additional overhead.

Conclusion:

By integrating FlutterFlow with Authorize.Net, the fitness app can seamlessly manage user payments and subscriptions, ensuring a secure, efficient, and user-friendly experience. This integration allows the business to focus on delivering high-quality content and services to its subscribers while maintaining robust payment management.

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