NodeJS How to determine if running in Google Cloud Function?

Question

How do I tell if my process is running in a Google Cloud Function?

Answer 1

I have 2 checks in mind:

• Firstly, if the Cloud Function env variables are set (your other question)
• Secondly, you can check if the metadata server answer by performing a get request to it. Don't forget the header (Metadata-flavor: google). If you get a Http status code 404, you aren't on Cloud Function.