Meet Jet

import jet
import jet/middleware

app = jet.new()

# Global middleware
app.use middleware.logger
app.use middleware.cors origin: "*"
app.use middleware.rate_limit 100, "1m"

# Route group with auth
app.group "/api/v1" do
  use middleware.jwt_auth secret: env("JWT_SECRET")

  get "/users" do |ctx|
    users = User.all
    ctx.json users
  end

  post "/users" do |ctx|
    user = ctx.body_as User
    user.save!
    ctx.status(201).json user
  end

  get "/users/:id" do |ctx|
    user = User.find ctx.param("id")
    ctx.json user
  end
end

app.listen 3000

import jet

app = jet.new()

# WebSocket chat
app.ws "/chat" do |ws|
  ws.on_message do |msg|
    ws.broadcast msg
  end

  ws.on_close do
    puts "Client disconnected"
  end
end

# Server-Sent Events
app.sse "/events" do |stream|
  loop do
    data = fetch_updates
    stream.send event: "update",
                   data: data.to_json
    sleep 1
  end
end

# Reverse proxy with load balancing
app.proxy "/api/*" do
  upstream "http://10.0.0.1:8080", weight: 3
  upstream "http://10.0.0.2:8080", weight: 1
  strategy :weighted
  health_check "/health", interval: "10s"
end

app.listen 3000