Create Javascript App in a Jumpseller App

create_jsapp.rb

# after the App is Authorized, the /callback route is requested.
# on the App itself, the /callback controller will: 
# 1. confirm the App is authorized
# 2. save the Authorization tokens on the Database
# 3. create the Javascript App on the Store.
app.get '/callback' do
  halt 403, 'Authorization denied' if authorization_denied? // App Authorization

  store = find_or_create_app(
    klass: model_name,
    store_id: session[:store_id],
    application_id: load_app_credentials(settings.name)['id']
  )

  new_token = get_token_from(code: params[:code])

  # save tokens
  save_extras(
    store: store,
    extras: {
      access_token: new_token.token,
      refresh_token: new_token.refresh_token,
      expires_at: new_token.expires_at
    }
  )

  # create the Javascript App
  response = HTTParty.post("#{settings.api_host}/v1/jsapps.json", body: {
    app: {
      url: uri("/script/#{store.uuid}/jsapp.js"),
      element: settings.app_element,
      template: settings.app_template
    }
  }.to_json, headers: {
    'Content-Type' => 'application/json',
    'Accept' => 'application/json',
    'Authorization' => "Bearer #{new_token.token}"
  })
  
  halt 500 unless response.ok?

  redirect uri('/')
end