Cloud Endpoints Frameworks for Java - Running and testing API backends locally not working

[caitlyn-organizer]

In which file did you encounter the issue?

https://cloud.google.com/endpoints/docs/frameworks/java/test-deploy#running_and_testing_api_backends_locally

Did you change the file? If so, how?

I first tried what was in the doc. But that didn't work and after some googling and finding this issue thread #533, I tried the following:
export ENDPOINTS_SERVICE_NAME=endpointname-api.endpoints.projectid.goog
gcloud config set project projectid
gcloud auth application-default login
mvn clean package
mvn exec:java -DGetSwaggerDoc
gcloud service-management deploy openapi.json
mvn appengine:devserver

Describe the issue

I get the exception below when running mvn appengine:devserver and a 503 when attempting to access http://localhost:8080/_ah/api/explorer or http://localhost:8080/_ah/admin. An important note is that this service is not the default service in the appengine project. Its appengine-web.xml service tag is campaign-service. I'm wondering if the instructions for running api backends locally is different for an appengine service other than default.

[INFO] WARNING: failed endpoints-api-configuration: java.lang.IllegalStateException: could not get credentials for fetching service config!
[INFO] Nov 18, 2017 1:16:38 AM com.google.apphosting.utils.jetty.JettyLogger warn
[INFO] WARNING: Failed startup of context com.google.appengine.tools.development.DevAppEngineWebAppContext@7ce026d3{/,/Users/organizer/Development/repos/orgRepos/campaign-service/target/campaign-service-1.0.0-SNAPSHOT}
[INFO] java.lang.IllegalStateException: could not get credentials for fetching service config!
[INFO] at endpoints.repackaged.com.google.api.config.ServiceConfigSupplier.create(ServiceConfigSupplier.java:206)
[INFO] at endpoints.repackaged.com.google.api.config.ServiceConfigFetcher.create(ServiceConfigFetcher.java:45)
[INFO] at com.google.api.control.ServiceManagementConfigFilter$1.load(ServiceManagementConfigFilter.java:33)
[INFO] at com.google.api.control.ConfigFilter.init(ConfigFilter.java:87)
[INFO] at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:662)
[INFO] at org.mortbay.jetty.servlet.Context.startContext(Context.java:140)
[INFO] at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1250)
[INFO] at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:517)
[INFO] at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:467)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130)
[INFO] at org.mortbay.jetty.Server.doStart(Server.java:224)
[INFO] at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50)
[INFO] at com.google.appengine.tools.development.JettyContainerService.startContainer(JettyContainerService.java:268)
[INFO] at com.google.appengine.tools.development.AbstractContainerService.startup(AbstractContainerService.java:284)
[INFO] at com.google.appengine.tools.development.AutomaticInstanceHolder.startUp(AutomaticInstanceHolder.java:26)
[INFO] at com.google.appengine.tools.development.AbstractModule.startup(AbstractModule.java:87)
[INFO] at com.google.appengine.tools.development.Modules.startup(Modules.java:105)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl.doStart(DevAppServerImpl.java:274)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl.access$000(DevAppServerImpl.java:47)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:219)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl$1.run(DevAppServerImpl.java:217)
[INFO] at java.security.AccessController.doPrivileged(Native Method)
[INFO] at com.google.appengine.tools.development.DevAppServerImpl.start(DevAppServerImpl.java:217)
[INFO] at com.google.appengine.tools.development.DevAppServerMain$StartAction.apply(DevAppServerMain.java:368)
[INFO] at com.google.appengine.tools.util.Parser$ParseResult.applyArgs(Parser.java:47)
[INFO] at com.google.appengine.tools.development.DevAppServerMain.run(DevAppServerMain.java:223)
[INFO] at com.google.appengine.tools.development.DevAppServerMain.main(DevAppServerMain.java:214)
[INFO]
[INFO] Nov 18, 2017 1:16:38 AM com.google.apphosting.utils.jetty.JettyLogger info
[INFO] INFO: Started SelectChannelConnector@localhost:8080
[INFO] Nov 18, 2017 1:16:38 AM com.google.appengine.tools.development.JettyContainerService startHotDeployScanner
[INFO] INFO: Full scan of the web app in place every 5s.
[INFO] Nov 18, 2017 1:16:38 AM com.google.appengine.tools.development.AbstractModule startup
[INFO] INFO: Module instance campaign-service is running at http://localhost:8080/
[INFO] Nov 18, 2017 1:16:38 AM com.google.appengine.tools.development.AbstractModule startup
[INFO] INFO: The admin console is running at http://localhost:8080/_ah/admin
[INFO] Nov 17, 2017 5:16:38 PM com.google.appengine.tools.development.DevAppServerImpl doStart
[INFO] INFO: Dev App Server is now running

[frankyn]

Hi @caitlyn-organizer,

Are you running a specific sample?
If you're running the sample detailed here https://cloud.google.com/endpoints/docs/frameworks/java/get-started-frameworks-java then you should use the following updated commands for each action (the doc mentioned contain bugs and we are working on resolving them):

Set the Google Cloud Project id in the pom.xml. This will update the value found in the appengine-web.xml.

Then run the following commands:

gcloud config set project projectid
gcloud auth application-default login
mvn clean package
mvn endpoints-framework:openApiDocs
gcloud endpoints services deploy target/openapi-docs/openapi.json
mvn appengine:run

[frankyn]

Closing as issue hasn't been updated in over a year.