DT Bazar API (Backend)

The DT Bazar API is developed using Spring Boot (Java) and Micro Services architecture.

API Documentation

Api documentation is maintained using Springfox-Swagger-3.0.0-SNAPSHOT.

Documentation Link: https://vm03.hidayahsmart.solutions/dtbazar

Documentation Preview

Auth flow

The authentication and authorization is handled by spring security jwt and facebook oAuth login. The flow is as follows:

• Client app obtains user’s facebook access token either by native library or by using auth-service’s facebook-auth-controller’s endpoints.
• Client app creates JWT Token by using auth-service’s auth-controller’s generateJwtToken endpoint.
• Once JWT Token is obtained, it must be provided in the header of each and every single request of the system as a bearer token. The header must look like, Authorization: Bearer {JWT_TOKEN}

Technology Stack

Language: Java

Build Tool: Maven

Framework: Spring Boot

• Spring Cloud Config
• Spring Cloud Gateway
• Netflix Eureka
• Netflix Hystrix
• Spring Security
• Actuator
• Swagger (Webflux)
• Spring Reactive Stack (Webflux)
• Lombok
• Mongo DB
• Jwt
• Spring Social Facebook

System Design

The Gateway (Single instance) is only interface the clients communicate with. There is a central config server from which application properties are fetched. All micro services are registered to a discovery server (Eureka). The client requests are sent in a load balanced way to the downstream servers through circuit breaker(Hystrix). There is a hystrix dashboard service. Downstream servers process the requests and send back to gateway to deliver them to the clients.

Application Architecture