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javagoogle-app-enginegoogle-cloud-endpointsendpoints

Google Cloud Endpoints Framework API Explorer doesn't work after migration

I migrated to Endpoints Framework 2.0 and it works locally but when I deploy to App Engine my endpoints API doesn't seem to work.

I'm supposed to be able to view my API using the explorer:

https://[PROJECT_ID].appspot.com/_ah/api/explorer

But when I open this page, there is an error in the backend:

/_ah/api/discovery/v1/apis : java.lang.NullPointerException at com.google.api.server.spi.EndpointsServlet.service(EndpointsServlet.java:71)

The API doesn't seem to work and opening the backend's webpage (index.html) gives the same error. I can't debug this because "EndpointsServlet.java" isn't part of my source code. How can I see the source for EndpointsServlet.java so I can debug this error? (All this used to work before migrating to Endpoints Framework).

Solution

  • Thanks to tyczj. Frameworks v2 must be deployed manually via gradle by running:

    appengineDeploy

    In Android Studio, you can open the gradle sidebar and double-click :backend:Run Configurations:[appengineDeploy]

    After doing this everything works.