502 Bad Gateway with nginx | Google App Engine | Node JS

Question

I am hosting the web app on Google Cloud Platform with App Engine and I am using ExpressJS and MongoDB, which is hosted on mLab.

Everything worked well until 1/1/201

Answer 1

check out the logs for any deployment errors

$ gcloud app logs read

I have came across a similar issue with the code provided by this tutorial (https://cloud.google.com/nodejs/getting-started/authenticate-users)

And found there was a missing dependency. I fixed the missing dependency and the app is deployed and working fine.

Details into the issue: https://github.com/GoogleCloudPlatform/nodejs-getting-started/issues/106