Simple Auth

An example user registration and authentication service featuring;

• gRPC Server
• HTTP Server with RESTful endpoints
• JWT-based authentication
• Swagger REST API documentation
• Containerized integration tests
• Data validation

Service uses following Go packages;

• Database ORM: gorm
• JWT: golang-jwt
• RESTful Endpoints: grpc-gateway
• Validation: protoc-gen-validate

Quick Run

docker-compose build
docker-compose up

will build and start these containers;

• grpc_server
• http_server
• db (postgres:13.1-alpine)
• integration-tests

RESTful API

After Quick Run, you have a RESTful API server running at http://localhost:8080. It provides the following endpoints:

• POST /v1/users: create a new user
• POST /v1/users/login: login with given credentials
• GET /v1/users/current: get current user

with cURL:

1. Create a new user

curl --location --request POST 'localhost:8080/v1/users' \
--header 'Content-Type: application/json' \
--data-raw '{
    "email": "[email protected]",
    "password": "hello123"
}'

2. Login with given credentials

curl --location --request POST 'localhost:8080/v1/users/login' \
--header 'Content-Type: application/json' \
--data-raw '{
    "email": "[email protected]",
    "password": "hello123"
}'

3. Get current user

curl --location --request GET 'localhost:8080/v1/users/current' \
--header 'Authorization: <TOKEN_FROM_STEP2>'

API Documentation

Swagger UI is available (see Quick Run) at http://localhost:8080/swagger-ui/

Development

Install required tools:

make install-tools

Generate gRPC and REST bindings:

make generate

Environment variables required when running services locally:

DB_HOST=localhost;
DB_NAME=simple_auth;
DB_USERNAME=local;
DB_PASSWORD=local;
DB_PORT=5432;
DB_SSL_MODE=disable

GRPC_SERVER_ADDR=localhost:8070
HTTP_SERVER_ADDR=localhost:8080

Tests

Unit Tests

make test

Integration Tests

There's the users/service_integration_test.go test covering the basic functionality. After running gRPC server and database server (see Quick Run) just run test with tags flag.

make test-integration

or easier way is just running integration-test with docker-compose:

docker-compose build
docker-compose up