Tonic Web Framework

Tonic is a web application framework that supplies tools and libraries to give an expressive, elegant syntax.

Getting Started

Environment variables

Take a look at .env.example for an example of how to set up environment variables. Copy it to .env and modify them to your needs

• Any ENV variable you do not set will default to what is in .env.example

Endpoint Configuration

Define an endpoint that you can call locally and remotely.

• In this example we bind / to a standard JSON response
• You can specify params in the bind with : - ex: /search/:query can be access via c.Param("query")
• With tonic.Init() your database and other connections are ready to use

import (
   fume "github.com/fumeapp/fiber"
   "github.com/fumeapp/tonic"
   "github.com/fumeapp/tonic/render"
   "github.com/gofiber/fiber/v2"
)

func main() {
   app := tonic.Init(&fiber.Config{})
   app.Get("/", func(c *fiber.Ctx) { render.Render(c, render.H{"message": "Hello World"}) })
   fume.Start(app, fume.Options{})
}

Database Connectivity

Connect to both a MySQL and OpenSearch database - other engines coming soon.

• access your databases via the database package
• Make sure to set DB_CONNECT=true if you want to use the MySQL database
• database.Db is your mysql connection
• Make sure to set OS_CONNECT=true if you want to use the Opensearch database
• database.Os is your opensearch connection

import (
  . "github.com/fumeapp/tonic/database"
)

func main() {
  tonic.Init()
  Db.Create(&models.User{Name: "John Doe"})
  fmt.Println(Os.Info())
}

AWS Access and Configuration

You can find the following .env variables in .env.example

AWS_CONNECT=true
AWS_ACCESS_KEY_ID=
AWS_SECRET_ACCESS_KEY=
AWS_REGION=us-east-1
AWS_BUCKET=

• You can access your AWS Config via aws.Config, your AWS S3 client via aws.S3, and your Upload Manager via aws.Uploader
• An upload helper can be found as aws.Upload(url) - this will upload a file to your bucket, mark it public, and return the URL

Router Features

Route Model Binding

Easily bind a gorm Model to a controller and have Index, Show, Update, and Delete methods

route.Init(app)
route.ApiResource(app, "user", &models.User{}, controllers.UserResources())

• 4 Routes will be created:

• GET /user binds to Index

• GET /user/:id binds to Show

• PUT /user/:id binds to Update

• DELETE /user/:id binds to Delete

• Show, Update, and Delete will have the model passed in as a parameter ready to be re-casted, otherwise return a 404

func index(c *fiber.Ctx) {
  var users = []models.User{}
  database.Db.Find(&users)
  render.Render(c, users)
}

func show(c *fiber.Ctx, value any) {
  user := value.(*models.User)
  render.Render(c, user)
}

func update(c *fiber.Ctx, value any) {
  user := value.(*models.User)
  render.Render(c, user)
}

func UserResources() route.ApiResourceStruct {
  return route.ApiResourceStruct{Index: index, Show: show, Update: update}
}