Serve Google assetlinks.json using spring boot

GoogleResource.java

package com.adaptyou.wama.server.web.rest;

import com.codahale.metrics.annotation.Timed;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RestController;

import java.net.URISyntaxException;

@RestController
public class GoogleResource {

    private final Logger log = LoggerFactory.getLogger(GoogleResource.class);


    @RequestMapping(value = "/.well-known/assetlinks.json",
        method = RequestMethod.GET,
        produces = MediaType.APPLICATION_JSON_VALUE)
    @Timed
    public ResponseEntity<String> createProduct() throws URISyntaxException {
        log.debug("REST request to get assetlinks.json");
        return ResponseEntity.ok().body("[{\n" +
            "    \"relation\": [\"delegate_permission/common.get_login_creds\"],\n" +
            "    \"target\": {\n" +
            "        \"namespace\": \"web\",\n" +
            "        \"site\": \"https://www.wama.cloud\"\n" +
            "    }\n" +
            "},\n" +
            "{\n" +
            "    \"relation\": [\"delegate_permission/common.get_login_creds\"],\n" +
            "    \"target\": {\n" +
            "        \"namespace\": \"android_app\",\n" +
            "        \"package_name\": \"com.fullstack3.wama\",\n" +
            "        \"sha256_cert_fingerprints\": [\n" +
            "            \"00:11:22:33:44:55:66:77:88:99:........................................\"\n" +
            "        ]\n" +
            "    }\n" +
            "}\n" +
            "]");
    }
}