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banking

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FinTech banking backend built with Spring Boot microservices and secured using Keycloak (OAuth2 + JWT). Demonstrates Eureka, API Gateway, Feign clients, and DTO–Entity mapping for scalable, secure, real-world systems.

banking-applications fintech java-17 kafka-streams keycloak keycloak-provider microservices-architecture redis-cache rest-api spring-boot spring-cloud-gateway

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Name		Name	Last commit message	Last commit date
.vscode		.vscode
account-service		account-service
api-gateway		api-gateway
configServer		configServer
fund-transfer-service		fund-transfer-service
sequence-generator		sequence-generator
service-registry		service-registry
transaction-service		transaction-service
user-service		user-service
.DS_Store		.DS_Store
.gitignore		.gitignore
README.md		README.md
prometheus.yml		prometheus.yml

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Banking Microservices Platform

A complete FinTech-style microservice architecture built with Spring Boot.

Microservices

service-registry - Eureka Service Discovery
api-gateway - Gateway routing & load balancing
user-service - Handles user registration & login
account-service - Manages bank accounts
fund-transfer-service - Handles money transfers
transaction-service - Logs transactions
sequence-generator - Generates unique IDs

Stack

Java 17
Spring Boot 3.5.x
Spring Cloud (Eureka, Gateway, Feign)
Kafka
Redis
MySQL
Docker

Run Order

Start service-registry
Start api-gateway
Start other services (user, account, etc.)

About

FinTech banking backend built with Spring Boot microservices and secured using Keycloak (OAuth2 + JWT). Demonstrates Eureka, API Gateway, Feign clients, and DTO–Entity mapping for scalable, secure, real-world systems.

banking-applications fintech java-17 kafka-streams keycloak keycloak-provider microservices-architecture redis-cache rest-api spring-boot spring-cloud-gateway

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