Golang rest api 💻

Task 📝

1. Create a simple Golang application that will serve a RESTful API with a resource (books). The endpoints should support Create, Read, Update and Delete operations.
2. The data should be persisted in a database like SQLite, MySQL, PostgreSQL, etc.
3. Add tests for you REST API.
4. Create a dockerfile for your application.

Tips 🧞

Application example

Endpoints:

# Get all books
GET /books

# Get a specific book
GET /books/:id

# Create a book
POST /books

# Update a book
PUT /books/:id

# Delete a book
DELETE /books/:id

Model:

{
    "id": 1,
    "title": "The Alchemist",
    "author": "Paulo Coelho",
    "published": 1988
}

Database

This package can be used to connect to a local SQLite database:

• https://github.com/mattn/go-sqlite3

If you want an ORM (Object Relational Mapping) library, you can use GORM:

• https://gorm.io/docs/connecting_to_the_database.html#SQLite

REST API

For creating a HTTP server, you can use echo:

• https://github.com/labstack/echo

REST API testing

Documentation for testing echo endpoints:

• https://echo.labstack.com/guide/testing/

to run test cases

go test -v

Repository Pattern

Repository pattern is a design pattern that we will use in our application. It's basically a way of encapsulating the data access layer logic In the context of Go and databases, it's common to use repositories in order to abstract away the underlying data source from your business logic.

• https://www.linkedin.com/pulse/what-repository-pattern-alper-sara%C3%A7/
• https://medium.com/@pererikbergman/repository-design-pattern-e28c0f3e4a30

Dockerization

For Create a dockerfile for your application

• https://docs.docker.com/language/golang/build-images/

• https://david-yappeter.medium.com/dockerize-go-application-easily-cf6776d5c05e

To build the docker image run this command in your terminal from root directory of project:

docker build -t go-restapi .

After building the image, you can start it with this command:

docker run --name restapi -d -p 8080:8080 go-restapi