Task Management Project

In this project,

• In the user service, users are registered and logged in.
• In the project service, projects are recorded in the system. Afterwards, projects used more than once are cached to the Redis side when a Get request is made.
• In the task service, a new task is created using users and the project.-
• There are 4 microservices, when a task created via task-service that service insert a record onto task table(postgre) and it produce an event to task_service.task_created.0 topic.And when a task updated via task-service that service update a record onto task table(postgre) and it produce an event to task_service.task_updated.0 topic.
• Notification-consumer service listen task_service.task_created.0 and task_service.task_updated.0 topics and simulates the logic of sending notification after the event it consumes after notification is sending successfully service insert a record onto couchbase notification bucket.

System Architechure

Configuration Repository and Core Repository

• Project Configuration Files Repository.

• Core Project Repository and Core Project Deployment On Maven Central.

💻 Technologies

• Java 17
• Spring Boot 3.2.5
• Maven
• Lombok
• MapStruct
• SwaggerUI
• PostgreSQL
• Spring Security
• Spring Cloud Netflix
• Spring Cloud FeignClient
• Spring Cloud Config
• Apache Kafka
• Docker
• Couchbase
• Flyway

Setup

• Before run project you need to start docker desktop
• After docker is up, run the docker-compose.yml
• After the run docker-compose.yml file you will see docker desktop like this:

DB Connection

Postgre Connection:

url: jdbc:postgresql://localhost:5432/userservice
username: prostgres
password: test

url: jdbc:postgresql://localhost:5432/projectservice
username: prostgres
password: test

url: jdbc:postgresql://localhost:5432/taskservice
username: prostgres
password: test

Couchbase Connection & Settings

• Open http://localhost:8091/ on your browser

  username: Administrator
  password: 123456

• Open the buckets tab and click the ADD BUCKET

• write the bucket name in our example => bucket name is "notification"

• After that open the query tab on the left side

• Run 2 query separately to create index on bucket

  1) CREATE PRIMARY INDEX `idx_default_primary_notification` ON `notification`
  2) CREATE INDEX `id` ON `notification`(`id`)
  

• Open the Security tab on the left side and click the ADD USER

• After click the add user you will see a new popup and fill the informations like :

  Username: admin
  Full Name: admin
  Password: 123456
  Verify Password: 123456
  

User Service

Users register and log in to the system

Method	Path	Description
POST	/auth/register	Register for users
POST	/auth/login	Login for users
GET	/auth/{id}	Get specific user information by id
GET	/auth/ids	Get multiple user information

Project Service

Projects and information are recorded in the system

Method	Path	Description
GET	/projects	Get all the projects
GET	/projects/{id}	Get specific project by id
POST	/projects	Create new project
POST	/projects/search	Searching for projects with specific features
PUT	/projects	Update project
DELETE	/projects/{id}	Delete project by id

Project Cache Redis

• Caching multiple projects and then calling them from there is good for the performance of the project.

Task Service

Task creation service using user and project service

Method	Path	Description
GET	/tasks	Get all the tasks
GET	/tasks/{id}	Get specific task by id
POST	/tasks	Create new task
POST	/tasks/search	Searching for tasks with specific features
PUT	/tasks	Update task

Notification Service

The Notification Service listens for task creation and update events using Kafka. It produces notifications for these events and records them in Couchbase.

Kafka Topics:

taskservice.task_created.0: Published when a task is created.

taskservice.task_updated.0: Published when a task is updated.

• Kafka UI

• Task Service Producer

• Notification Consumer