GO DDD API

Kumparan Backend Technical Assessment, create REST API with domain driven approach (DDD) using Golang, GORM (Object Relational Mapping), and MySQL

Demo get all news api https://go-ddd-api.appspot.com/api/v1/news

Installation & Run

First, Make sure you have set up $GOPATH.

# Download this project
go get github.com/jojoarianto/go-ddd-api

# It's take several minute to download project

Set project environment and run

# move to project directory
cd $GOPATH/src/github.com/jojoarianto/go-ddd-api

# copy and rename config.toml.example
cp config.toml.example config.toml

# set config.toml to your env
user="your_db_username"
password="your_db_password"
host="your_db_host"
port="your_db_port"
dbname="your_db_name"

# run golang project
go run main.go

# API Endpoint : http://localhost:8000/api/v1/

Design

Application
- Write business logic
  - news.go (GetNews, GetAllNews, &...)
  - topic.go (GetTopic, GetAllTopic, &...)
Domain
- Define interface
  - repository interface for infrastructure
- Define struct
  - Entity struct that represent mapping to data model
    - news.go
    - topic.go
Infrastructure
- Implements repository interface
  - news_repository.go
  - topic_repository.go
Interfaces
- HTTP handler

Required Features

Manajement news user can manage data news (CRUD)
Manajement topic user can manage data topic (CRUD)
Relational model betwean news & topic many to many (one news can contains multiple topic, one topic has multiple news)
filter by news status filter news by it's status ['draft', 'deleted', 'publish']
filter by news topic filter news by a topic (forinstance: politik)

URL ENDPOINT

/api/v1/news

GET : Get all news
POST : Create a news

/api/v1/news/{news_id}

GET : Get a news by id
PUT : Update a news by id
DELETE : Delete a news by id

/api/v1/topic

GET : Get all topic
POST : Create a topic

/api/v1/topic/{news_id}

GET : Get a topic by id
PUT : Update a topic by id
DELETE : Delete a topic by id

/api/v1/news?status={status}

GET : Get all news filter by news.status

/api/v1/news/{topic-slug}

GET : Get all news filter by topic

/api/v1/news?limit={limit}&page={page}

GET : Get all news with pagination limit and page

Usage Examples

Documentation api with insomnia https://intip.in/InsomniaApiKumparanTa

Get all news, URL GET /api/v1/news

curl --request GET \
  --url https://go-ddd-api.appspot.com/api/v1/news

Get all news filter by status['draft', 'publish', 'deleted'], URL GET /api/v1/news?status={status}

curl --request GET \
  --url https://go-ddd-api.appspot.com/api/v1/news?status=draft

Get all news filter by topic, URL GET /api/v1/news/{topic-slug}

curl --request GET \
  --url https://go-ddd-api.appspot.com/api/v1/news/liputan-khusus

Get all news with pagination, URL GET /api/v1/news?limit={limit}&page={page}

curl --request GET \
  --url https://go-ddd-api.appspot.com/api/v1/news?limit=2&page=1

Get all topics

curl --request GET \
  --url https://go-ddd-api.appspot.com/api/v1/topic

Create a topic, URL POST /api/v1/topic

curl --request POST \
  --url https://go-ddd-api.appspot.com/api/v1/topic \
  --header 'content-type: application/json' \
  --data '{
	"name":"Liputan Khusus",
	"slug":"liputan-khusus"
}'

Create a news, URL POST /api/v1/news

curl --request POST \
  --url https://go-ddd-api.appspot.com/api/v1/news \
  --header 'content-type: application/json' \
  --data '{
	"title": "Bonnie Triyana: TNI Razia Buku Upaya Desukarnoisasi",
	"slug": "memberangus-buku-memberangus-ilmu-1547439849539914993",
	"content": "30 November 1957, kunjungan Presiden Sukarno di Perguruan Cikini, Jakarta, atas undangan guru mendadak jadi tragedi. Hujan granat mendarat ketika ia berjalan keluar dari sekolah dua anaknya itu, Megawati Soekarnoputri dan Guruh Soekarnoputra. Dua pengawal, Oding Suhendar dan Sudiyo, merangkul Sukarno pergi menyelamatkan diri. Kedua anak Sukarno sudah lebih dulu diamankan.",
	"status": "publish",
	"Topic": [
		{
			"ID": 2,
			"CreatedAt": "2019-01-19T03:12:32Z",
			"UpdatedAt": "2019-01-19T03:12:32Z",
			"DeletedAt": null,
			"name": "Liputan Khusus",
			"slug": "liputan-khusus",
			"News": null
		}
	]
}'

Delete a news, URL DELETE /api/v1/news/2

curl --request DELETE \
  --url https://go-ddd-api.appspot.com/api/v1/news/2

Delete a topic, URL DELETE /api/v1/topic/2

curl --request DELETE \
  --url https://go-ddd-api.appspot.com/api/v1/topic/3

Update a news, URL PUT /api/v1/topic/2

curl --request PUT \
  --url https://go-ddd-api.appspot.com/api/v1/news/2 \
  --header 'content-type: application/json' \
  --data '{
	"title": "[draft] Memberangus Buku, Memberangus Ilmu",
	"slug": "memberangus-buku-memberangus-ilmu-1547439849539914993",
	"content": "Buku-buku yang disita itu berjudul Kronik ‘65: Catatan Hari Per Hari Peristiwa G30S Sebelum dan Sesudahnya, Jasmerah: Pidato-pidato Spektakuler Bung Karno Sepanjang Massa, dan Mengincar Bung Besar: Tujuh Upaya Pembunuhan Bung Karno. Tak ada satu pun judul buku yang memuat kata “PKI” atau “komunis” seperti yang dituduhkan",
	"status": "draft",
	"Topic": [
		{
			"ID": 2,
			"CreatedAt": "2019-01-19T03:12:32Z",
			"UpdatedAt": "2019-01-19T03:12:32Z",
			"DeletedAt": null,
			"name": "Liputan Khusus",
			"slug": "liputan-khusus",
			"News": null
		}
	]
}'

Update a topic, URL PUT /api/v1/topic/2

curl --request PUT \
  --url https://go-ddd-api.appspot.com/api/v1/topic/3 \
  --header 'content-type: application/json' \
  --data '{
	"name":"Sepak Bola Nasional",
	"slug":"sepak-bola-national"
}'

Product Items Backlog

References & Library

DDD Skeleton : https://github.com/takashabe/go-ddd-sample
Httprouter : https://github.com/julienschmidt/httprouter
GORM Documentation : http://doc.gorm.io
GORM Pagination Extension : https://github.com/biezhi/gorm-paginator
Toml : https://github.com/BurntSushi/toml
Deploy GoApp on GCP GAE https://medium.com/google-cloud/deploying-your-go-app-on-google-app-engine-5f4a5c2a837

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