Socialnets-API

A social network API with the functionalities (so far) of user registration, following users, search, posting, and liking posts.

Requirements

• PostgreSQL 16.0
• Golang 1.21.1

If you use docker, here you will find a complete environment container.

Installation

Clone or download this repository.

Copy .env.example to .env.

Important

You must set SECRET_KEY in this file, which can literally be any string.

However, you can generate a SECRET_KEY with the following Go code, which will print it in the prompt. After that, simply copy the generated hash to the .env file.

package main

import (
	"crypto/rand"
	"encoding/base64"
	"fmt"
	"log"
)

func main() {
	key := make([]byte, 64)
	if _, err := rand.Read(key); err != nil {
		log.Fatal(err)
	}

	secret := base64.StdEncoding.EncodeToString(key)
	fmt.Println(secret)
}

After that, choose one of the following options (Docker or Local).

Docker

At the root of the project there is a Dockerfile and docker-compose.yml files with requirements to run the project. You can run with docker by building the image and running it.

Execute:

docker-compose up

You'll have API running on http://localhost

Local

Set database configuration on .env file and create the database. In docker folder, you will found a SQL script that will create database and tables.

# Install dependencies
go mod tidy

# Start application
go run ./cmd/api/main.go

If you want to generate the executable, use:

# Install dependencies
go mod tidy

# Generate executable
go build ./cmd/api

# Start application
./api

You'll have API running on http://localhost:8000 (if you don't change API_PORT on .env).

Migrations

This project uses pressly/goose to manage migrations, which are located in the build/migrations folder. To execute them, install Goose:

go install github.com/pressly/goose/v3/cmd/goose@latest

Change variables and run:

goose -dir build/migrations postgres "postgresql://{DB_USER}:{DB_PASSWORD}@{DB_HOST}:5432/{DATABASE_NAME}?sslmode=disable" up

For convenience, you can set the database driver and connection string as environment variables:

export GOOSE_DRIVER=postgres
export GOOSE_DBSTRING=postgresql://db_user:your_password@db_host:5432/socialnets?sslmode=disable

And then, you can run the migration using a short command:

goose -dir build/migrations up

Usage

After starting application, you'll have access to following routes:

Method	URI	Authentication	Description
GET	/health	No	Application status health check
POST	/api/login	No	User login
POST	/api/user	No	Create an user
GET	/api/user	Yes	Search for users
GET	/api/user/{userId}	Yes	Get an user data
PUT	/api/user/{userId}	Yes	Update an user data
DELETE	/api/user/{userId}	Yes	Delete an user
POST	/api/user/{userId}/follow	Yes	Logged user follows an user
POST	/api/user/{userId}/unfollow	Yes	Logged user unfollows an user
GET	/api/user/{userId}/followers	Yes	Get all followers by an user
GET	/api/user/{userId}/following	Yes	Gets all users who are following a user
POST	/api/user/{userId}/update-password	Yes	Update password user
POST	/api/post	Yes	Create a post
GET	/api/post	Yes	Get all post for a logged user
GET	/api/post/{postId}	Yes	Get a post
PUT	/api/post/{postId}	Yes	Update a post
DELETE	/api/post/{postId}	Yes	Delete a post
GET	/api/user/{userId}/posts	Yes	Gets all posts from a user
POST	/api/post/{postId}/like	Yes	Like a user post
POST	/api/post/{postId}/unlike	Yes	Unlike a user post

Authentication, once performed with login (email) and password on /api/login, is maintained via a JWT Bearer Token.

You can find more information, like payload and responses in the application swagger (coming soon).

So API is already to use.

Tests

To run tests run on root of the project:

go test ./...

Coverage

Run at the root of the project to see tests coverage:

go test ./... --cover

API documentation

🚧

Soon a swagger doc will be added.

TODO

• Add GORM to the project
• Improve tests
• Add Swagger documentation
• Implements UUID for user's Id
• Register who liked a post, so that each user can only like each post once, in addition to having information on who liked each post.
  • Add likes table
  • Control who like or unlike a post.
• Implements migrations
• Password recovery

License

MIT