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https://github.com/jerry-felipe/scalable-online-payment-microservice

A backend service designed to handle online transactions with scalability in mind. It supports secure payment processing, integrates with various payment gateways, and ensures high availability. Ideal for e-commerce platforms and businesses needing reliable payment solutions.
https://github.com/jerry-felipe/scalable-online-payment-microservice

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A backend service designed to handle online transactions with scalability in mind. It supports secure payment processing, integrates with various payment gateways, and ensures high availability. Ideal for e-commerce platforms and businesses needing reliable payment solutions.

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# Scalable-Online-Payment-Microservice

A backend service designed to handle online transactions with scalability in mind. It supports secure payment processing, integrates with various payment gateways, and ensures high availability. Ideal for e-commerce platforms and businesses needing reliable payment solutions.



# Features  

- Scalable Payments: Handles a large volume of transactions simultaneously with low latency.  

- Multiple Payment Gateways: Supports integration with Paypal as a payment provider.  

- Transaction Management: Allows tracking and managing payments, refunds, and chargebacks.  

- Secure Transactions: Utilizes encryption and tokenization for secure data handling.  

- Real-Time Processing: Provides real-time updates on payment status.  

- Multi-Currency Support: Supports multiple currencies for global transactions.  



# Technologies Used  

- Backend Framework: Spring Boot (Java)  

- Database: Oracle Database (Oracle XE or other versions)  

- Payment Gateways: Stripe, PayPal, or any other provider (integration support)  

- JDBC Driver: Oracle JDBC Driver ('ojdbc8.jar')  

- Authentication: JWT for secure API access  

- API Documentation: Swagger/OpenAPI  

- Caching: Redis for faster transaction queries (optional)  

- Messaging Queue (optional): Kafka or RabbitMQ for transaction event processing  



# Set Up the Environment  

1. Install Oracle XE (or any other Oracle version):  

   - Download from [Oracle XE Downloads](https://www.oracle.com/database/technologies/xe-downloads.html).



2. Configure Database:  

   - Set up the database schema for payment transactions.  

   - Example connection URL:  

     '''env

     DATABASE_URL=jdbc:oracle:thin:@localhost:1521:xe

     '''



3. Set up the environment variables:  

   - Create a '.env' file or set system environment variables for the Oracle database connection and payment gateway credentials:  

     '''env

     DATABASE_URL=jdbc:oracle:thin:@localhost:1521:xe

     DB_USERNAME=your_username

     DB_PASSWORD=your_password

     PAYMENT_GATEWAY_KEY=your_payment_gateway_api_key

     REDIS_URL=redis://localhost:6379  # optional

     JWT_SECRET_KEY=your_jwt_secret_key

     '''



4. Add Oracle JDBC Driver:  

   - Ensure you have the Oracle JDBC Driver ('ojdbc8.jar') in your classpath or add it as a dependency in 'pom.xml' if using Maven:  

     '''xml

     

         com.oracle.database.jdbc

         ojdbc8

         19.8.0.0

     

     '''



5. Payment Gateway Integration:  

   - Ensure you have API keys from the payment gateways (e.g., Stripe, PayPal) for integration.



6. Run the Application:  

   - To start the Spring Boot application:  

     '''bash

     mvn spring-boot:run

     '''



# Usage  

- Start the API server using Spring Boot:  

  '''bash

  mvn spring-boot:run

  '''  

- Access the API documentation at:  

  '''

  http://localhost:8080/swagger-ui.html

  '''



# Endpoints  

| Endpoint                     | Method | Description                                    |  

|------------------------------|--------|------------------------------------------------|  

| '/payments/initiate'          | POST   | Initiate a new payment transaction.            |  

| '/payments/status/{id}'       | GET    | Check the status of a payment by transaction ID.|  

| '/payments/refund/{id}'       | POST   | Process a refund for a transaction.            |  

| '/payments/chargeback/{id}'   | POST   | Process a chargeback for a payment.            |  

| '/payments/reports'           | GET    | Generate reports on payments and transactions. |  



# Contributing  

Contributions are welcome! Please fork the repository and submit a pull request with detailed notes.



# License  

This project is licensed under the MIT License.



---  

For more information, contact [email protected].