Microservices Architecture: A Hotel BackEnd

Implement Microservices architecture by building a Hotel BackEnd from scratch, including fault tolerance and circuit breaking with Resilience4j, retry module, and rate limiter. Using modern technologies like Spring Boot and Feign client for RESTful API calls, this practical guide for software engineers and architects applies best practices in containerization and service orchestration. From requirements gathering to deployment and testing, with a focus on scalability, flexibility, and fault tolerance, and an emphasis on building a modular, loosely-coupled architecture. Suitable for beginners and experienced developers alike, with insights into challenges and solutions in building Microservices-based systems.

Describe the architecture of the Microservices project, which consists of four services:

• UserServices
- using SpringBoot with MySql
createUser
getUserById
getAllUser - here I am fetching a hotel List from HotelServices and fetching data from Rating Services.

  GitHub Link :-

  https://github.com/mukul0000/MicroServices/tree/master/UserService/UserService

• HotelService
- using SpringBoot with MySql
AddHotel
getHotelById
getAllHotel

  GitHub Link :-

  https://github.com/mukul0000/MicroServices/tree/master/HotelsService/HotelsService

• RatingService

  - using SpringBoot with MongoDb
addRating
getRatingById
getRatingByUserId
getRatingByHotelId

  GitHub Link :- https://github.com/mukul0000/MicroServices/tree/master/RatingService/RatingService

• ServiceRegistry

  - using SpringBoot with EurekaServer

  GitHub Link :-

  https://github.com/mukul0000/MicroServices/tree/master/ServiceRegistry/ServiceRegistry

• API Gateway

  - using SpringBoot with OKTA configuration

  GitHub Link :- https://github.com/mukul0000/MicroServices/tree/master/ApiGateWay/ApiGateWay

• ConfigServer

  - using SpringBoot with GitHub

  GitHub Link :-

  https://github.com/mukul0000/MicroServices/tree/master/ConfigServer/ConfigServer

For Security Purposes: -

• OKTA

Architectural patterns that I use: -

• circuit breaker

• Retry Module

• Rate Limiter using resilience4J