2个Google App Engine数据存储区更新

Question

I have 2 GAE apps running (GAE1 and GAE2). I have to update the datastore of GAE2 from GAE1. How can I achieve this in Java? Does GAE provide any APIs for cross GAE datastore updates?

Note: I tried making a PUT request through the browser, by enabling CORS on the source and destination GAEs. Unfortunately CORS works only for GET and HEAD.

Answer 1

This issue is fixed in the following way, (Note my requirement is I should not use Remote API from GAE.)

1. Open an URL in the destination GAE allow this url alone, if it contains a secure request header.

For example:

 public void filter(ContainerRequestContext requestContext) {
        if (requestContext.getUriInfo().getPath().contains("intgr")
    }

2. Check for the request header that you pass, if it is present in the destination GAE.

3. Write your REST service in this url path /intgr and send back the response to the Source GAE.

Answer 2

除了前面提到的Cloud Datastore API之外 ，您还可以使用Remote API访问不同App Engine应用程序（包括数据存储区）中的服务。