Microservice in Go

The code in this repository is a microservice written in Go. The microservice exposes a REST API for managing a list of books.

API

The microservice provides the following REST API:

Get all books

Returns a JSON array of all the books in the database.

URL : /api/books

Method : GET

Auth required : NO

Permissions required : None

Get a book

Returns a JSON object for the book with the given ID.

URL : /api/books/:id

Method : GET

Auth required : NO

Permissions required : None

URL Parameters

Name	Type	Description
id	string	The ID of the book to retrieve

Create a book

Creates a new book in the database.

URL : /api/books

Method : POST

Auth required : NO

Permissions required : None

Data constraints

{
    "isbn": "[valid ISBN]",
    "title": "[book title]",
    "author": {
        "firstname": "[author first name]",
        "lastname": "[author last name]"
    }
}

Data example

{
    "isbn": "1234567890",
    "title": "My Book",
    "author": {
        "firstname": "John",
        "lastname": "Doe"
    }
}

Update a book

Updates the book with the given ID.

URL : /api/books/:id

Method : PUT

Auth required : NO

Permissions required : None

URL Parameters

Name	Type	Description
id	string	The ID of the book to update

Data constraints

{
    "isbn": "[valid ISBN]",
    "title": "[book title]",
    "author": {
        "firstname": "[author first name]",
        "lastname": "[author last name]"
    }
}

Data example

{
    "isbn": "1234567890",
    "title": "My Book",
    "author": {
        "firstname": "John",
        "lastname": "Doe"
    }
}

Delete a book

Deletes the book with the given ID.

URL : /api/books/:id

Method : DELETE

Auth required : NO

Permissions required : None

URL Parameters

Name	Type	Description
id	string	The ID of the book to delete

Running the code

You can run the code using the following command:

go run main.go

Use Docker

Use the following command to build and push the Docker Image:

docker buildx build --platform linux/amd64,linux/arm64 --push --tag hub.narasimman.xyz/go-microservice:latest .

Start the container using:

docker compose up -d

Output

The code will start a server on http://localhost:8000. You can then access the following endpoints:

• http://localhost:8000/api/books - Returns a list of books
• http://localhost:8000/api/books/{id} - Returns a single book with the given id
• http://localhost:8000/api/books - Creates a new book
• http://localhost:8000/api/books/{id} - Updates a book with the given id
• http://localhost:8000/api/books/{id} - Deletes a book with the given id