Hotlel Booking API - Microservices with Okta Security

This project demonstrates the creation of a microservices architecture using Spring Boot. It integrates REST APIs, services, service registry, API gateway, and GitHub configuration. Additionally, it secures the microservices with Okta for JWT OAuth authentication.

Key Technologies

Step 1: Setting Up Your Environment

• Install Java Development Kit (JDK): Ensure JDK 8 or later is installed. Download JDK 17.
• Install an IDE: Recommended IDEs are IntelliJ IDEA or Eclipse.
• Install Maven: Use Maven for managing dependencies. Maven Setup Guide.

Step 2: Creating a REST API

• Project Setup: Create a new Spring Boot project using Spring Initializr.
• Define REST Controller: Use @RestController and @RequestMapping annotations to define REST endpoints.
• Implement CRUD Operations: Set up endpoints for Create, Read, Update, and Delete operations.
  • Spring REST Documentation

Step 3: Implementing Services

• Define Service Layer: Use the @Service annotation to define service classes.
• Business Logic: Implement the necessary business logic in the service classes.
  • Spring Service Layer Best Practices

Step 4: Implementing Service Registry

• Add Eureka Server Dependency: Include spring-cloud-starter-netflix-eureka-server in your pom.xml.
• Configure Eureka Server: Use @EnableEurekaServer annotation to enable Eureka server functionality.
• Register Services: Services automatically register with Eureka Server when started. Learn more about Eureka Server.
  • Eureka Server Tutorial

Step 5: Implementing API Gateway

• Add Zuul Dependency: Include spring-cloud-starter-netflix-zuul in your pom.xml.
• Configure Zuul: Enable Zuul proxy functionality by using @EnableZuulProxy annotation.
• Route Configuration: Define routes to direct requests to the appropriate microservices. Learn more about Zuul API Gateway.
  • API Gateway Pattern in Microservices

Step 6: GitHub Configuration

• Create GitHub Repository: Set up a repository to host your microservices project on GitHub.
• Version Control: Initialize Git in your project directory and link it to your GitHub repository.
• Push Code to GitHub: Commit and push your code to the repository. Learn more about GitHub.
  • GitHub Documentation

Step 7: Securing with Okta JWT OAuth

• Add Okta Dependency: Include Okta dependencies in your pom.xml. Follow Okta setup instructions on Okta Developer.
• Configure Okta: Set up an Okta Developer account and configure an OAuth 2.0 application.
• Security Configuration: Integrate Okta with Spring Security for JWT OAuth authentication. Learn more about Okta integration with Spring Security here.
  • Okta JWT OAuth Guide

Step 8: Next Steps

• Testing and Validation: Thoroughly test your microservices and APIs to ensure functionality. You can use tools like Postman for API testing.
• API Documentation: Use Swagger or OpenAPI to document your APIs.
  • Springfox Swagger Integration
• Monitoring and Scaling: Implement monitoring tools such as Prometheus and Grafana for tracking microservices health and consider scaling options based on demand.
  • Prometheus Official Docs
  • Grafana Official Docs