Fastfile.rb

platform :ios do
  # ... here comes the lanes we've created earlier
  
  desc "deploy"
  lane :deploy do
    setup_ci
    sync_code_signing(
      type: "appstore",
      app_identifier: 'com.company.example',
      readonly: true
    )

    build_app(scheme: "your-app-scheme")
    app_store_connect_api_key(
      is_key_content_base64: true,
      in_house: false, # if it is enterprise or not
    )
    upload_to_app_store(
      force: true,
      run_precheck_before_submit: false,
      submit_for_review: false
    )
  end
  
end