An example to create ad-hoc ipa and deploy to Crashlytics

Fastfile

platform :ios do 
desc "Example Fastlane - Ipa + Crashlytics" 
	lane :beta do 
  		get_provisioning_profile(
		  adhoc: true,
		  force: true
		)   
		gym(
		   export_method:"ad-hoc",
	       	   scheme: "MyApp",
	           workspace:"MyApp.xcworkspace",
	           export_xcargs: "-allowProvisioningUpdates"
	        )
		crashlytics(
		  debug: true, # Crashlytics debug option
		  groups: ["groupalias"],  # Alias of your group of testers
		  crashlytics_path: "./Pods/Crashlytics/", # path to your Crashlytics submit binary.
		  api_token: "xxxxxxxxxxxxxxxxxxxxxxxx",
		  build_secret: "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
		  ipa_path: "./MyApp.ipa",
                  notifications: true
		)
	end 
end