zhivovoleg/settingsservice

Learn Golang

About

Self-learning Golang project.
Store and managing settings for microservices.

Used packages

backend:

Golang

• go-gin webserver
• gin-swagger
• pgx - PostgreSQL Driver
• pgxpool
• zap logger

frontend

Vue

• Pinia state management
• vue3-notification
• vanilla-jsoneditor
• tailwindcss
• axios

Develop

Recommended IDE - VSCode.
Environment for project in ./.vscode/launch.json.
For another IDE's don't forget set up env variables:

"SettingsServicePort": "9000",
"SettingsServiceDbConnectionString": "postgres://pg:1@localhost:5432/servicesSettings_db",
"SettingsServiceEnv": "dev"

Requiremens

1. Go
2. Node

Recommended extentions for VSCode

1. Docker
2. Go
3. npm Intellisense
4. REST Client
5. TypeScript Vue Plugin (Volar)
6. Volar

! disable Vetur

Debug & Test

Debug backend

1. Install golang swag utility:

   go install github.com/swaggo/swag/cmd/swag@latest

2. Install dependencies:

   go get .

3. Run test database docker image:

   docker compose up -d ./.test/database/docker-compose.yml

4. After changes regenerate swagger files:

   swag init -g ./cmd/SettingsService/main.go -o ./docs

5. Set breakpoints and press F5

Debug frontend

1. Install node

2. Move to ./web/src

3. Install dependencies npm install

4. npm run dev

Run in Docker

make front
docker build --tag 'settingsservice' .
docker run -d -p 9000:9000 --name 'SettingsService' 'settingsservice'

or prepare image with tag settingsservice

make image

or run container with tag settingsservice and name SettingsService

make docker

Production

build with remove the symbol and debug info:

go build -o=SettingsService -ldflags "-s -w" ./cmd/SettingsService
(cd ./web/src/ && npm install && npm run build)

where:

• -w turns off DWARF debugging information
• -s turns off generation of the Go symbol table

or use Makefile:

make help

For non-docker environment don't forget set up env variables:

"SettingsServicePort": "9000",
"SettingsServiceDbConnectionString": "postgres://pg:1@localhost:5432/servicesSettings_db"

TO DO

1. healthchecks
2. Add push mechanism for setting's updates
3. Add auth
4. Add unit-tests
5. Try another DB, for example mongo
6. fix config. How do it best? Now ENV
7. Write help instructions

History

1. Appy project layout
2. makefile
3. versioning
4. SPA
5. fix results of stat analyst (except swagger comments)
6. dockerize