Why is my cloud function showing the following error

[dobermensch]

I'm just hitting a public endpoint. When I hit it through postman, I don't see any errors but if I hit my cloud functions which hit that public endpoint, then I see those error logs. 

Any idea what the issue could be? 

[abdelfettah]

Cloud Functions by default cannot access the internet, you will need to deploy a VPC Serverless Connector to route outbound access via the VPC and deploy a Cloud NAT to allow the function to access the public endpoint 

https://cloud.google.com/functions/docs/networking/network-settings#route-egress-to-vpc