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I am trying to integrate google pubsub into my project.
So far I managed to get everyhting to work (create/delete topics/subscriptions publish and pull messages) except for push endpoints, I am unable to sent messages to them.
I am using app engine flex environment, and used this code as sample:
https://github.com/GoogleCloudPlatform/cloud-pubsub-samples-java/tree/master/appengine-push
I am not getting any useful logs except a 403 error similar to this "
POST /_ah/push-handlers/receive_message? HTTP/1.1" 403 156 - "-" "versionId-dot-projectId.com"
I followed the document in here which explains what to do in case of 403, but no luck.
https://cloud.google.com/pubsub/docs/troubleshooting
https://cloud.google.com/pubsub/docs/advanced#gae-endpoints
My questions:
Does pubsub need ssl certificates even on app engine.
If it does, what sort of self signed certificates are acceptable.