Example jwt auth middleware

gistfile1.txt

require "pry"

class JwtAuthentication
  def initialize(app)
    @app = app
  end

  def call(env)
    req = Rack::Request.new(env)
    secret = ";Xsc2}M48w33xUvL7N>SG-V}OnU??BG&O&|!az,)yHpLgm/|g,kj^iVNwr<SFqy"
    token = req.env["HTTP_TOKEN"]
    status, headers, response = @app.call(env)
    if JWT.decode token, secret
      [200, headers, response.body]
    end
  rescue JWT::DecodeError
    message = { message: "Invalid token" }.to_json
    [403, { "Content-Type" => "application/json" }, [message]]
  end
end