The demo project on Golang

License: GPL v3. GPL License

Introduction

This is the demo project which provides simple endpoints. Project store based on Postgres.

The project contains unit tests, integration tests, docker-compose support and swagger-ui for API.

Tests

Unit tests can be run without any external utils.
Integration tests need a running docker service or docker.sock.

Requirements

1. Go 1.13
2. Running docker service or docker.sock
3. Docker-compose 
4. Make 
5. Postgres 12.0 and greater 

Build

The project has a Dockerfile. It's simple to build by Docker.
Run the command in the project base dir docker build -t rest-api-demo . or make install_deps build

You are able to run all necessary services via docker-compose. docker-compose up
Docker-compose will build the Dockerfile, setup the Postgres, run the migrations, start the application, prepare the swagger-ui.

Deploy

For deploying the application you need to run the migration before. Migration uses the same config file as the main application.
./migrate -dir ./scripts/migrations -init or use make target make migrate
If the command exit code is 0 it means that the migration went successfully.

Documentation

Code Documentation

Run godoc -http=:6060 in project directory.
Read go docs on http://localhost:6060/pkg/github.com/tsovak/rest-api-demo/.

API Documentation

API docs are available by swagger and markdown (docks/api.md). Just deploy using docker-compose and open http://localhost:8888/#/. Or open https://app.swaggerhub.com/apis-docs/Tsovak/go-rest-api/1.0.0.

Examples

Create an account

Request

curl --location --request POST 'http://localhost:8080/accounts' \
--header 'Content-Type: application/json' \
--data-raw '  {
    "balance": 125,
    "currency": "RU",
    "name": "alice1"
  }'

Response

{
    "id": 1,
    "name": "alice1",
    "currency": "RU",
    "balance": 125
}

Get accounts

Request

curl -X GET 'http://localhost:8080/accounts'

Response

[
    {
        "ID": 1,
        "Name": "alice1",
        "Currency": "RU",
        "Balance": 125
    },
    {
        "ID": 2,
        "Name": "Alice",
        "Currency": "RU",
        "Balance": 100500
    },
    {
        "ID": 34,
        "Name": "Bob",
        "Currency": "USD",
        "Balance": 1000
    }
]

Create payment

Request

curl --location --request POST 'http://localhost:8080/payments' \
--header 'Content-Type: application/json' \
--data-raw '{
	"amount":1,
	"to_id":"39",
	"from_id":"40"
}'

Response

[
    {
        "id": 1,
        "amount": -1,
        "to_account": "39",
        "from_account": "40",
        "direction": "outgoing"
    },
    {
        "id": 2,
        "amount": 1,
        "to_account": "39",
        "from_account": "40",
        "direction": "incoming"
    }
]

Get account payments

Request

curl -X GET 'http://localhost:8080/accounts/39/payments'

Response

[
    {
        "id": 1,
        "amount": -1,
        "to_account": "39",
        "from_account": "40",
        "direction": "outgoing"
    },
    {
        "id": 2,
        "amount": 1,
        "to_account": "39",
        "from_account": "40",
        "direction": "incoming"
    },
    {
        "id": 36,
        "amount": -50,
        "to_account": "39",
        "from_account": "40",
        "direction": "outgoing"
    },
    {
        "id": 37,
        "amount": 50,
        "to_account": "39",
        "from_account": "40",
        "direction": "incoming"
    }
]