Redis API

Description

This is a simple example of an API Project using Kotlin to create, edit, delete and find an item.

This project was implemented as a Memcached spike, so it has some redundancies on cache functionalities. It also may need some refinements and additional unit tests.

Technical Info

• Technologies:
  • Kotlin
  • Spring Boot
  • Sleuth
  • Docker Compose
  • Gradle
  • JPA
  • Redis
• Database:
  • MySQL

Building from Source

To clean/build the project from the console use the command:

    gradle clean build

To run only tests from the console use the command:

    gradle test

OBS: You can also use your IDE to run Gradle tasks.

Running the project

The first thing you need to do is prepare your database.

You can do that by using docker compose on docker folder as detailed on Using Docker Compose session of this document.

With your database already prepared you just use the command below to Run the project:

    gradle bootRun

OBS: You can also use your IDE to run the Project.

Using Docker Compose

In Tab "Terminal" access the folder docker and type docker-compose up -d {{service_name}}.

After that, the service will be available in a docker container.

Useful Commands:

• Start Container: docker-compose up -d {{service_name}}
• Stop Container: docker-compose down -d {{service_name}}
• Logs: docker-compose logs {{service_name}}
• Logs in Real Time: docker-compose logs -f {{service_name}}

Service names available for this project:

• mysql_container (Database)
• redis_container (MemCached Database)

Redis Cli

To manage redis cache, you can access redis-cli with the commands below:

1. Access redis_container bash: docker exec -it redis_container /bin/bash
2. Access redis-cli: redis-cli

Commands:

• Show Available Keys: KEYS *
• Get a Key value: get "${KEY_NAME}" (KEY_NAME example: "findById::1")
• Delete a Key: del "${KEY_NAME}"

Postman

To use this api you can install Postman and import the collection available on postman folder.

To import the collection on Postman:

1. Select the Menu File > Import
2. Click on Upload Files button (File tab)
3. Select ./postman/redis-api.postman_collection.json file to import.