Google cloud functions http authentication
问题 I am new to google cloud functions and try to restrict access to my function by only requests from dialogflow webhooks. I see two options in gcloud console: allow unauthenticated requests and restrict by user accounts. I don't understand how to implement that authentication. Dialogflow webhooks has options to set http headers that sets in webhook requests. But gcloud console hasn't interface/options to obtain any data that I can write as http authentication header. So I see only option