Fiber REST boilerplate with HTMX

This is my personal repo just for fun which for spinning up golang REST API quicker and to learn about golang and HTMX.

It runs by fiber with pre-defined CRUD examples which follows the Controller-Service-Repository pattern like Spring boot or Laravel's architecture.

Features

• With implementations of postgres, sqlite, mariadb, mongodb in internal/database/. Just raw sql without ORM.
  • Swtich between different DBs driver by changing the database.engine in config.
• With example of pre-defined modules in internal/modules/. They come with CRUD APIs and support Filtering, Sorting, Pagination etc.
  • User
  • Group
    • example of assigning users
    • TBD access control of modules
  • Todo
    • example of request by form-data for uploading documents
• HTMX web templates with tailwind & alpinejs.
• With a script cmd/gen/gen.go for generate new module in internal/modules/.
• JWT auth, login sample by curl.
• Can generate swagger doc by swag.
• Make use of viper for loading env variables in config.
• With a logging wrapper by zap which uses as middleware for writing the request's logs in log/, the log file maybe used for centralised log server like ELK or Signoz.
• Can run in both non-docker or docker environment.

Quick start by docker-compose

1. Start the databases containers. Skip this if use Sqlite.
2. Run migrations with the desired database(pg/mariab/sqlite/mongodb)
3. Set the db driver in configs/docker.yaml
4. Start fiber api by docker
5. Test the login api by curl for getting the JWT
6. Try the web
   • users page
   • todos page
   • groups page

Todo

• Need more test cases & validations
• Need tons of refactors...
• Web template example by htmx
  • Login page
  • Forget page
  • Users page CRUD
    • list page
    • form page
  • Todos page
    • list page
      • search by file name (may add a db migration for a view joining todos & documents)
    • form page
      • upload files
      • delete files
    • preview files
  • Groups page
    • list page
    • form page
      • manage users
      • add a section for managing the ACL for accessing the modules
• Group permssions for ACL
  • Add group module for managing users
  • Add resource module for defining the resources(modules) to be control
  • Add permission_type module for defining the types like read,add,delete etc.
  • Add group_resource_acl module for storing the ACLs info
  • Add middleware for checking the group's permission at route.go
  • Add GET /me
• Generate new module script cmd/gen/gen.go
  • Try bubbletea for better tui interaction
  • Support generate web templates
• Try Redis/Valkey for caching GET?
• Try Oauth (goth? or oauth2-proxy?)

Project structure

I try following the standards from project-layout as much as I can.

├── assets
├── bin
├── build
├── cmd
│   ├── dbmigrate                   # for run the db migrations in migrations/
│   ├── gen                         # for generate the new modules in internal/modules & migrations/
│   └── server                      # go fiber things
├── compose-db.yaml                 # db containers for dev
├── compose-dev.yaml
├── compose-prod.yaml
├── configs                         # config files for storing the ENV variables read by viper
│   ├── docker.yaml
│   └── localhost.yaml
├── db-backup
├── db.env                          # read by compose-db.yaml when initiating dev DBs
├── Dockerfile                      # read by compose-dev.yaml
├── Dockerfile.prod                 # read by compose-prod.yaml
├── docs                            # swagger docs generated by "swag init"
├── fiber-starter.db
├── go.mod
├── go.sum
├── internal                        
│   ├── auth
│   ├── config                      # viper funcs for reading the config in configs/
│   ├── database                    # the databases implementations
│   ├── helper
│   ├── middleware
│   ├── modules                     # all APIs store here, they follow the "route-controller-service-repository" pattern
│   └── notification                # email notification functions here
├── log                             # storing the API log files
│   └── requests.log
├── main.go                         # the fiber starting point
├── Makefile                        # you get the idea
├── migrations                      # storing the DB migration files
├── node_modules                    # because of tailwind
├── package.json                    # because of tailwind
├── package-lock.json               # because of tailwind
├── qrcodes                         # my stuffs
├── README.Docker.md
├── README.md
├── tailwind.config.js
├── uploads                         # storing the files uploaded by APIs. maybe put these files in assets/ later.
│   ├── xxx.pdf
│   └── yyy.jpg
└── web                             # serving the HTMX templates and web's libs
    ├── static                      # css & js & 3rd parties libs
    └── template                    # web templates for the modules like user, todo etc.

Install dependencies (for running without docker)

If run the Fiber server without docker, install the following go packages.

Air - hot reload

air for fiber hotreload.

go install github.com/cosmtrek/air@latest

Go-migrate - db migration

migrate for run the database's migration.

go install -tags 'postgres mysql sqlite3 mongodb' github.com/golang-migrate/migrate/v4/cmd/migrate@latest

Swag - swagger doc

swag command for generate swagger doc.

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

Nodejs - tailwindcss CLI build

npx for running the tailwindcss command for frontend html template dev

Config

Copy sample config

For run without docker

cp configs/localhost.yaml.sample configs/localhost.yaml

For run by docker

cp configs/docker.yaml.sample configs/docker.yaml

Set the db driver

At database section, edit the engine

...
database:
  engine: "postgres/sqlite/mariadb/mongodb"
...

Start databases containers for development

1. copy and then edit the db.env if needed

cp db.env.sample db.env

2. Start all by docker-compose Postgres, Mariadb & Mongodb will be started

docker-compose -f compose-db.yaml up -d

Start the fiber api server

For development

Set the env to local in the configs/<localhost/docker>.yaml

Start without docker

air

Start by docker

Run the dev container

make docker-dev

or

docker-compose -f compose-dev.yaml build fiber-api-dev --build-arg UID=$(id -u) && \
docker-compose -f compose-dev.yaml up -d

Check status

docker-compose -f compose-dev.yaml ps

Watch the log

make docker-dev-log

For production

Change config

Change the values in the configs/<localhost/docker>.yaml

• Change the server.env to prod
• Change the server.host
• Change jwt.secret
• Change log.level higher than 0

Start by docker

Run the production container

make docker-prod

Check status

docker-compose -f compose-prod.yaml ps

Watch the log

make docker-prod-log

DB Migration

Install go-migrate and then follow the detail usage for different DBs.

Run the tailwindcss build process

make tw-watch

Test sample APIs

ping

curl --request GET \
  --url http://localhost:7000/ping

login

There is a default admin user with password admin once the DB migrations ran.

curl --request POST \
  --url http://localhost:7000/api/auth/login \
  --header 'Content-Type: application/json' \
  --data '{"name":"admin","password":"admin"}'

Generate new module

The cmd/gen/gen.go is for generating new module without tedious copy & paste, find & replace.

Detail usage

API details

Users

readme

Todos

readme

Groups

readme

Password reset

readme

Run tests

To disable cache when running tests, run with options: -count=1 ref: https://stackoverflow.com/a/49999321

Run all tests

go test -v -race ./... -count=1

Run integration (database related) tests

go test -v -race ./... -count=1 --tags=integration

Run specific database tests

Substitude with specific test name: - TestSqliteConstructSelectStmtFromQuerystring - TestMariadbConstructSelectStmtFromQuerystring - TestPgConstructSelectStmtFromQuerystring - TestMongodbConstructSelectStmtFromQuerystring

go test -v ./internal/database -run <test name> -count=1 --tags=integration

Swagger

Edit the doc

In each module under internal/modules/<module>/route.go, edit the swagger doc before generate the docs/ directory at next section below.

Format swagger's comments & generate the swagger docs

$ swag fmt
$ swag init

go to the swagger page by web browser

http://localhost:7000/swagger/index.html

Send log to Signoz

Spin up the otel container

docker run -d --name signoz-host-otel-collector --user root -v $(pwd)/log/requests.log:/tmp/requests.log:ro -v $(pwd)/otel-collector-config.yaml:/etc/otel/config.yaml --add-host host.docker.internal:host-gateway signoz/signoz-otel-collector:0.88.11