using Google cloud endpoint framework 2.0 with custom domain

Question

Im hosting a mobile backend (written in Java) in App engine standard environment using Cloud endpoint framework 2.0, which I can access by this URL https://api-dot-[projectId]-appspot.com/_ah/api/myApi/v1/path

now Im trying to use a custom domain [api.mydomain.app] and here what I've done:

1- I've added this domain api.mydomain.app in my appengine setting and its now verified and has a valid SSL managed by google

2- I've added the 8 DNS records (A & AAAA) in this domain "mydomain.app" in godaddy like below:

A   api xxxxxxx
A   api xxxxxxx
A   api xxxxxxx
A   api xxxxxxx

AAAA    api xxxxxxx
AAAA    api xxxxxxx
AAAA    api xxxxxxx
AAAA    api xxxxxxx

and I have the same records for @ (for the default service) and admin (for the admin service) and both are working just fine I have also this record CNAME * ghs.googlehosted.com

3- I've added these records below in the dispatch.xml:

  <dispatch>
       <!-- Send all Mobile traffic to the API. -->
      <url>api.mydomain.app/*</url>     
      <module>api</module>
  </dispatch>   

 <dispatch>
      <!-- Send all Admin traffic to the Admin Platform. -->
      <url>admin.harmonica.app/*</url>
      <module>admin</module>
  </dispatch> 

4- the module name for this backend is defined in appengine-web.xml as api

5- this is the definition of my API class

@Api(name = "myApi", version = "v1", authenticators = { Authenticator.class },
        // scopes = { Constants.EMAIL_SCOPE },
        clientIds = { Constants.WEB_CLIENT_ID,
                Constants.ANDROID_CLIENT_ID }, description = "API for Harmonica Backend application.")
public class MyApi {...}

6- this is how I define the EndpointsServlet in web.xml

<servlet-mapping>
  <servlet-name>EndpointsServlet</servlet-name>
  <url-pattern>/_ah/api/*</url-pattern>
 </servlet-mapping>

so after doing all of that whenever I try to access https://api.mydomain.app/myApi/v1/path or https://api.mydomain.app/path it shows me this response:

Error: Not Found
The requested URL /dating was not found on this server.

and in the server logs I see this No handlers matched this URL.

So can you plz help me out? did I miss out anything ?

Thanks in advance!

Answer 1

I've modified the url-pattern of EndpointsServlet to be:

   <servlet-mapping>
      <servlet-name>EndpointsServlet</servlet-name>
    <!--   This is for accessing the API by the domain name -->
      <url-pattern>/*</url-pattern>  
    <!--   This is for the backward compatibility -->
      <url-pattern>/_ah/api/*</url-pattern>
   </servlet-mapping>

and now I can access my API from my custom domain.