Joy是用janet编写的全栈Web框架

You Found Joy!

Joy is a full stack web framework written in janet

(use joy)

(defn home [request]
  (render :text "You found joy!"))

(defroutes routes
  [:get "/" home])

(def app (handler routes))

(server app 8000)

Getting Started

First make sure janet is installed

Next, install the joy cli like this

jpm install joy

Hopefully the joy executable will be on your path and ready to roll. Now, run the following from your terminal

joy new my-joy-project

This should create a new directory called my-joy-project and it should create a few files and things to get you started. Next, let's create a database, a table and connect it with routes and a few functions for handling requests.

Create a new sqlite database

If you aren't already in the my-joy-project directory, go ahead and get in there. Now run

joy create db

This creates a new empty database named dev.sqlite3. Let's fill it up.

Taking it for a spin

Alright now that we have a project and a sqlite database set up, it's time to test it out in the browser:

joy server

This should start an http server that's listening at http://localhost:8000.

Create a database table

Run this to create a new migration with a table with a few columns:

joy create table account 'email text not null unique' 'password text not null'

This has created one file in your db/migrations folder that is waiting to get applied to the database.

Run database migrations

Run this from your terminal

joy migrate

This will output what just happened to your database and create a new file db/schema.sql.

Create a route file

In joy there are no ORMs, no classes, and no objects, just functions that take in requests and return responses.

Let's make a route file that corresponds to the table from earlier

joy create route account

Those commands have created another new file: src/routes/account.janet and updated your src/routes.janet file with a few helpful routes.

Go ahead and check out the new account routes in the browser now: http://localhost:8000/account

Joy can do a lot more than that, check out the docs here

Why?

I wanted something that felt like coast but took so little resources (memory + cpu) I could run dozens (if not hundreds) of websites on a cheap VPS.