Google reviews API in Java: three ways, with working code

<!-- pom.xml -->
<dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.17.2</version></dependency>
<dependency><groupId>com.google.auth</groupId><artifactId>google-auth-library-oauth2-http</artifactId><version>1.24.1</version></dependency>

import java.net.URI;
import java.net.http.*;
import com.fasterxml.jackson.databind.*;

public class PlacesReviews {
  public static void main(String[] args) throws Exception {
    String placeId = "ChIJN1t_tDeuEmsRUsoyG83frY4";
    HttpClient http = HttpClient.newHttpClient();
    HttpRequest req = HttpRequest.newBuilder(URI.create("https://places.googleapis.com/v1/places/" + placeId))
        .header("X-Goog-Api-Key", System.getenv("GOOGLE_MAPS_API_KEY"))
        .header("X-Goog-FieldMask", "displayName,rating,userRatingCount,reviews")
        .GET().build();
    HttpResponse<String> res = http.send(req, HttpResponse.BodyHandlers.ofString());
    if (res.statusCode() != 200) throw new RuntimeException(res.statusCode() + " " + res.body());
    JsonNode place = new ObjectMapper().readTree(res.body());
    System.out.println(place.path("displayName").path("text").asText() + " " + place.path("rating").asDouble() + " (" + place.path("userRatingCount").asInt() + ")");
    for (JsonNode r : place.path("reviews"))
      System.out.println(r.path("rating").asInt() + " " + r.path("authorAttribution").path("displayName").asText() + ": " + r.path("text").path("text").asText(""));
  }
}

import java.net.URI;
import java.net.http.*;
import java.util.*;
import com.fasterxml.jackson.databind.*;
import com.google.auth.oauth2.*;

public class BusinessProfileReviews {
  static final HttpClient http = HttpClient.newHttpClient();
  static final ObjectMapper json = new ObjectMapper();
  static String token;

  static JsonNode get(String url) throws Exception {
    HttpRequest req = HttpRequest.newBuilder(URI.create(url)).header("Authorization", "Bearer " + token).GET().build();
    HttpResponse<String> res = http.send(req, HttpResponse.BodyHandlers.ofString());
    if (res.statusCode() != 200) throw new RuntimeException(res.statusCode() + " " + res.body());
    return json.readTree(res.body());
  }

  public static void main(String[] args) throws Exception {
    UserCredentials creds = UserCredentials.newBuilder()
        .setClientId(System.getenv("GOOGLE_CLIENT_ID")).setClientSecret(System.getenv("GOOGLE_CLIENT_SECRET"))
        .setRefreshToken(System.getenv("GOOGLE_REFRESH_TOKEN")).build();
    creds.refreshIfExpired();
    token = creds.getAccessToken().getTokenValue();   // scope: https://www.googleapis.com/auth/business.manage

    String account = get("https://mybusinessaccountmanagement.googleapis.com/v1/accounts").path("accounts").get(0).path("name").asText();
    String location = get("https://mybusinessbusinessinformation.googleapis.com/v1/" + account + "/locations?readMask=name,title").path("locations").get(0).path("name").asText();

    Map<String, Integer> stars = Map.of("ONE", 1, "TWO", 2, "THREE", 3, "FOUR", 4, "FIVE", 5);
    String pageToken = null;
    do {
      String url = "https://mybusiness.googleapis.com/v4/" + account + "/" + location + "/reviews?pageSize=50" + (pageToken != null ? "&pageToken=" + pageToken : "");
      JsonNode page = get(url);
      for (JsonNode r : page.path("reviews"))
        System.out.println(stars.get(r.path("starRating").asText()) + " " + r.path("reviewer").path("displayName").asText() + ": " + r.path("comment").asText("") + (r.has("reviewReply") ? " [replied]" : ""));
      pageToken = page.hasNonNull("nextPageToken") ? page.get("nextPageToken").asText() : null;
    } while (pageToken != null);
  }
}

String reviewName = r.path("name").asText();   // accounts/…/locations/…/reviews/…
String body = json.writeValueAsString(Map.of("comment", "Thank you, Laura. We've passed your note to the kitchen team."));
HttpRequest put = HttpRequest.newBuilder(URI.create("https://mybusiness.googleapis.com/v4/" + reviewName + "/reply"))
    .header("Authorization", "Bearer " + token).header("Content-Type", "application/json")
    .PUT(HttpRequest.BodyPublishers.ofString(body)).build();
http.send(put, HttpResponse.BodyHandlers.ofString());
// the same PUT edits an existing reply; DELETE on …/reply removes it

HttpClient http = HttpClient.newHttpClient();
ObjectMapper json = new ObjectMapper();
String key = "Bearer " + System.getenv("PRISMA_API_KEY");

HttpRequest list = HttpRequest.newBuilder(URI.create("https://api.prismareviews.com/v1/reviews?has_reply=false&limit=100"))
    .header("Authorization", key).GET().build();
JsonNode page = json.readTree(http.send(list, HttpResponse.BodyHandlers.ofString()).body());
for (JsonNode r : page.path("data"))
  System.out.println(r.path("platform").asText() + " " + r.path("rating").asInt() + " " + r.path("author").asText("") + ": " + r.path("text").asText(""));

String reviewId = page.path("data").get(0).path("id").asText();
HttpRequest reply = HttpRequest.newBuilder(URI.create("https://api.prismareviews.com/v1/reviews/" + reviewId + "/reply"))
    .header("Authorization", key).header("Content-Type", "application/json").header("Idempotency-Key", UUID.randomUUID().toString())
    .POST(HttpRequest.BodyPublishers.ofString(json.writeValueAsString(Map.of("text", "Thank you, Laura. We've passed your note to the kitchen team.")))).build();
http.send(reply, HttpResponse.BodyHandlers.ofString());