Storing data (images) on google cloud storage from app engine Java

[Baqir Rizvi]

I have an app engine application that store users demographic information along with their pictures. Demographic information like name, address etc is going to store on google cloud datastore. On daily basis I capture new user images. I want to store images on google cloud storage and want to store only image URL (bucket_name->image_name) of cloud storage, on datastore.

Also I want to load these images from my client application. Is it possible? Can we use firebase storage for the same purpose? which is better option with proper security consideration.?

I followed the below tutorial:

https://cloud.google.com/appengine/docs/standard/java/building-app/cloud-storage

but just after putting   compile 'com.google.appengine.tools:appengine-gcs-client:0.8',

I am successfully able to deploy on app engine but none of my APIs are working. Whenever I call any endpoint it gives me below exception in app engine log viewer:

com.google.apphosting.runtime.jetty9.JettyLogger warn: /_ah/api/deliveryexecutive/v1/token (JettyLogger.java:29) java.lang.NullPointerException at com.google.api.server.spi.EndpointsServlet.service(EndpointsServlet.java:71) at javax.servlet.http.HttpServlet.service(HttpServlet.java:790) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:848) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1772) at com.googlecode.objectify.ObjectifyFilter.doFilter(ObjectifyFilter.java:48) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759) at com.google.apphosting.utils.servlet.JdbcMySqlConnectionCleanupFilter.doFilter(JdbcMySqlConnectionCleanupFilter.java:60) at org.eclipse.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1759) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:582) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:524) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:226) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) at com.google.apphosting.runtime.jetty9.ParseBlobUploadHandler.handle(ParseBlobUploadHandler.java:119) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1182) at com.google.apphosting.runtime.jetty9.AppEngineWebAppContext.doHandle(AppEngineWebAppContext.java:183) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:512) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:185) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1112) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141) at com.google.apphosting.runtime.jetty9.AppVersionHandlerMap.handle(AppVersionHandlerMap.java:296) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:134) at org.eclipse.jetty.server.Server.handle(Server.java:539) at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:333) at com.google.apphosting.runtime.jetty9.RpcConnection.handle(RpcConnection.java:202) at com.google.apphosting.runtime.jetty9.RpcConnector.serviceRequest(RpcConnector.java:81) at com.google.apphosting.runtime.jetty9.JettyServletEngineAdapter.serviceRequest(JettyServletEngineAdapter.java:123) at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.dispatchServletRequest(JavaRuntime.java:695) at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.dispatchRequest(JavaRuntime.java:658) at com.google.apphosting.runtime.JavaRuntime$RequestRunnable.run(JavaRuntime.java:628) at com.google.apphosting.runtime.JavaRuntime$NullSandboxRequestRunnable.run(JavaRuntime.java:820) at com.google.apphosting.runtime.ThreadGroupPool$PoolEntry.run(ThreadGroupPool.java:269) at java.lang.Thread.run(Thread.java:748)

compile 'com.google.appengine.tools:appengine-gcs-client:0.8'

compile 'com.google.appengine.tools:appengine-gcs-client:0.8'

[Rajesh Gupta]

Using Firebase storage is a good idea.  I have used it recently in my own SaaS, and it worked out well.  There are ample security rules for firestore and firebase storage.

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Rajesh

www.GainERP.com

Field Service Software on Google Cloud Platform and Mobile

[Julie (cloud platform support)]

Sounds like your use case should work and you should be able to upload your files. You can use Cloud Storage on Firebase without significant change to your use case it seems. I don't believe either option would provide better security, either seems like it should work. This issue looks like it may require exchange of sensitive information like your project ID for more visibility so if you are still experiencing the issue please create an issue tracker and refer to this groups issue.