App Engine endpoint to accept POST data in request body - google-app-engine

Question

I have created a Google Endpoint in my App Engine Server as follows:
package com.xxxxx.gcmbackend;
import com.google.api.server.spi.config.Api;
import com.google.api.server.spi.config.ApiMethod;
import com.google.api.server.spi.config.ApiNamespace;
import com.google.api.server.spi.response.CollectionResponse;
import java.util.List;
import java.util.logging.Logger;
import javax.inject.Named;
import static com.xxxxxx.gcmbackend.OfyService.ofy;
#Api(
name = "register",
version = "v1",
namespace = #ApiNamespace(
ownerDomain = "gcmbackend.xxxxx.com",
ownerName = "gcmbackend.xxxxx.com",
packagePath=""
)
)
public class UserRegistrationEndpoint {
private static final Logger log = Logger.getLogger(RegistrationEndpoint.class.getName());
#ApiMethod(name = "register")
public void registerDevice(#Named("regId") String regId, #Named("username") String username, #Named("phone") String phone) {
if(findRecord(regId) != null) {
log.info("Device " + regId + " already registered, skipping register");
return;
}
RegistrationRecord record = new RegistrationRecord();
record.setRegId(regId);
record.setUsername(username);
record.setPhone(phone);
ofy().save().entity(record).now();
}
private RegistrationRecord findRecord(String regId) {
return ofy().load().type(RegistrationRecord.class).filter("regId", regId).first().now();
}
}
This works perfectly in creating new User records. The API is of the following format:
http://example.appspot.com/_ah/api/register/v1/registerDevice/<regId>/<username>/<phone>
However, I want the url to look like this:
http://example.appspot.com/_ah/api/register/v1/registerDevice/
and then send POST data as follows:
{
regId: "some_value",
username: "some_value",
phone: "some_value"
}
What do I need to change in my Endpoint in order to achieve this format?

Answer 1

You need to create a java bean with regId, username and phone attributes e.g. RegistrationInput.
public class RegistrationInput {
private String regId;
private String username;
private String phone;
public String getRegId() {
return regId;
}
public void setRegId(String regId) {
this.regId = regId;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
}
Then add the above java bean RegistrationInput, as a parameter to the ApiMethod
#ApiMethod(name = "register")
public void registerDevice(RegistrationInput input) {
.....
}