Microservice Example

The project is based on a web service which uses the following technologies:

• Java 17
• Spring Boot
• Postgres SQL
• Maven
• Apache Kafka Queue
• Microservices

#REST APIs

• /customer (POST)
• /customer/complain (POST)
• /fraud/check (POST)
• /fraud/status (POST)

Uses feign client for communication of services

Customer(8081)

It can add or complain a customer. it can control by mail for customer is fraud when a customer add. it calls frand change service when complain a customer.

uri: http://localhost:8080/customer
method: POST

{
    "firstName":"Ufuk",
    "lastName":"Ünal",
    "email":"ufukx@gmail.com"
}

uri: http://localhost:8080/customer/complain
method: POST

{
    "customerId":"7abb1512-7a72-4dc8-baec-faa36dfb890d"
}

Fraud(8082)

it can control for customer is fraud.

uri: http://localhost:8080/fraud/check
method: POST

{
    "email":"ufukx@gmail.com"
}

Notification(8083)

it can listener to kafka queue and sends message when come a message to queue. it sends message when add a customer.

Api Gateway (8080)

it can route reqests to the services

Deploy with docker compose

For deploy postgres and kafka without services in docker

• docker-compose -f docker-compose-main.yml up

• you can run services by manual in localhost

For deploy postgres, kafka and services in docker

• docker-compose -f docker-compose-main.yml up

• docker-compose -f docker-compose-services.yml up