How to programmatically put data to the Google Appengine database from remote executable?

Question

I would like to pre-fill and periodically put data to the Google Appengine database.

I would like to write a program in java and python that connect to my GAE service and upload data to my database.

How can I do that?

Thanks

Answer 1

Please use RemoteAPI for doing this programmatically.

In python, you can first configure the appengine_console.py as described here

Once you have that, you can launch and write the following commands in the python shell:

$ python appengine_console.py yourapp

>>> import yourdbmodelclassnamehere
>>> m = yourmodelclassnamehere(x='',y='')
>>> m.put()

And here is code from the java version which is self explanatory (directly borrowed from the remote api page on gae docs ):

package remoteapiexample;

import com.google.appengine.api.datastore.DatastoreService;
import com.google.appengine.api.datastore.DatastoreServiceFactory;
import com.google.appengine.api.datastore.Entity;
import com.google.appengine.tools.remoteapi.RemoteApiInstaller;
import com.google.appengine.tools.remoteapi.RemoteApiOptions;
import java.io.IOException;

public class RemoteApiExample {
    public static void main(String[] args) throws IOException {
        String username = System.console().readLine("username: ");
        String password = 
            new String(System.console().readPassword("password: "));
        RemoteApiOptions options = new RemoteApiOptions()
            .server("<your app>.appspot.com", 443)
            .credentials(username, password);
        RemoteApiInstaller installer = new RemoteApiInstaller();
        installer.install(options);
        try {
            DatastoreService ds = DatastoreServiceFactory.getDatastoreService();
            System.out.println("Key of new entity is " + 
                ds.put(new Entity("Hello Remote API!")));
        } finally {
            installer.uninstall();
        }
    }
}