Mengautentikasi permintaan ke Google Wallet API

Permintaan ke Google Wallet API harus diautentikasi agar Wallet API dapat mengidentifikasi bahwa permintaan tersebut dibuat oleh aplikasi Anda.

Sebelum memulai, pastikan Anda telah membuat dan mendaftarkan kredensial dengan benar untuk Google Wallet REST API dan Google Wallet Android SDK.

Permintaan REST API Google Wallet

Permintaan ke Google Wallet REST API diautentikasi menggunakan kunci akun layanan Google Cloud Google Wallet REST API untuk mendapatkan token akses.

Library Klien Google API menangani autentikasi dan membuat permintaan API. Pastikan Anda menginstal library untuk bahasa pemrograman pilihan Anda, yang digunakan dalam contoh berikut.

Pertama, lakukan impor library yang diperlukan dan tentukan beberapa variabel untuk JSON akun layanan, serta ID untuk penerbit, class, pengguna unik, dan objek yang akan disimpan.

Java

Untuk memulai integrasi di Java, lihat contoh kode di GitHub.

import com.auth0.jwt.JWT;
import com.auth0.jwt.algorithms.Algorithm;
import com.google.api.client.googleapis.batch.BatchRequest;
import com.google.api.client.googleapis.batch.json.JsonBatchCallback;
import com.google.api.client.googleapis.javanet.GoogleNetHttpTransport;
import com.google.api.client.googleapis.json.GoogleJsonError;
import com.google.api.client.googleapis.json.GoogleJsonResponseException;
import com.google.api.client.http.*;
import com.google.api.client.json.gson.GsonFactory;
import com.google.api.services.walletobjects.*;
import com.google.api.services.walletobjects.model.*;
import com.google.auth.http.HttpCredentialsAdapter;
import com.google.auth.oauth2.GoogleCredentials;
import com.google.auth.oauth2.ServiceAccountCredentials;
import java.io.*;
import java.security.interfaces.RSAPrivateKey;
import java.util.*;

/** Demo class for creating and managing Offers in Google Wallet. */
public class DemoOffer {
  /**
   * Path to service account key file from Google Cloud Console. Environment variable:
   * GOOGLE_APPLICATION_CREDENTIALS.
   */
  public static String keyFilePath;

  /** Service account credentials for Google Wallet APIs. */
  public static GoogleCredentials credentials;

  /** Google Wallet service client. */
  public static Walletobjects service;

  public DemoOffer() throws Exception {
    keyFilePath =
        System.getenv().getOrDefault("GOOGLE_APPLICATION_CREDENTIALS", "/path/to/key.json");

    auth();
  }

PHP

Untuk memulai integrasi di PHP, lihat contoh kode di GitHub.

use Firebase\JWT\JWT;
use Google\Auth\Credentials\ServiceAccountCredentials;
use Google\Client as GoogleClient;
use Google\Service\Walletobjects;
use Google\Service\Walletobjects\DateTime;
use Google\Service\Walletobjects\TimeInterval;
use Google\Service\Walletobjects\OfferObject;
use Google\Service\Walletobjects\OfferClass;
use Google\Service\Walletobjects\LatLongPoint;
use Google\Service\Walletobjects\Barcode;
use Google\Service\Walletobjects\ImageModuleData;
use Google\Service\Walletobjects\LinksModuleData;
use Google\Service\Walletobjects\TextModuleData;
use Google\Service\Walletobjects\TranslatedString;
use Google\Service\Walletobjects\LocalizedString;
use Google\Service\Walletobjects\ImageUri;
use Google\Service\Walletobjects\Image;
use Google\Service\Walletobjects\Message;
use Google\Service\Walletobjects\AddMessageRequest;
use Google\Service\Walletobjects\Uri;

/** Demo class for creating and managing Offers in Google Wallet. */
class DemoOffer
{
  /**
   * The Google API Client
   * https://github.com/google/google-api-php-client
   */
  public GoogleClient $client;

  /**
   * Path to service account key file from Google Cloud Console. Environment
   * variable: GOOGLE_APPLICATION_CREDENTIALS.
   */
  public string $keyFilePath;

  /**
   * Service account credentials for Google Wallet APIs.
   */
  public ServiceAccountCredentials $credentials;

  /**
   * Google Wallet service client.
   */
  public Walletobjects $service;

  public function __construct()
  {
    $this->keyFilePath = getenv('GOOGLE_APPLICATION_CREDENTIALS') ?: '/path/to/key.json';

    $this->auth();
  }

Python

Untuk memulai integrasi Anda di Python, lihat referensi contoh kode di GitHub.

import json
import os
import uuid

from googleapiclient.discovery import build
from googleapiclient.errors import HttpError
from google.oauth2.service_account import Credentials
from google.auth import jwt, crypt


class DemoOffer:
    """Demo class for creating and managing Offers in Google Wallet.

    Attributes:
        key_file_path: Path to service account key file from Google Cloud
            Console. Environment variable: GOOGLE_APPLICATION_CREDENTIALS.
        base_url: Base URL for Google Wallet API requests.
    """

    def __init__(self):
        self.key_file_path = os.environ.get('GOOGLE_APPLICATION_CREDENTIALS',
                                            '/path/to/key.json')
        # Set up authenticated client
        self.auth()

C#

Untuk memulai integrasi Anda di C#, lihat referensi contoh kode di GitHub.

using System.IdentityModel.Tokens.Jwt;
using System.Net.Http.Headers;
using System.Text.RegularExpressions;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Services;
using Google.Apis.Walletobjects.v1;
using Google.Apis.Walletobjects.v1.Data;
using Microsoft.IdentityModel.Tokens;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;


/// <summary>
/// Demo class for creating and managing Offers in Google Wallet.
/// </summary>
class DemoOffer
{
  /// <summary>
  /// Path to service account key file from Google Cloud Console. Environment
  /// variable: GOOGLE_APPLICATION_CREDENTIALS.
  /// </summary>
  public static string keyFilePath;

  /// <summary>
  /// Service account credentials for Google Wallet APIs
  /// </summary>
  public static ServiceAccountCredential credentials;

  /// <summary>
  /// Google Wallet service client
  /// </summary>
  public static WalletobjectsService service;

  public DemoOffer()
  {
    keyFilePath = Environment.GetEnvironmentVariable(
        "GOOGLE_APPLICATION_CREDENTIALS") ?? "/path/to/key.json";

    Auth();
  }

Node.js

Untuk memulai integrasi Anda di Node, lihat paket lengkap contoh kode di GitHub.

const { google } = require('googleapis');
const jwt = require('jsonwebtoken');
const { v4: uuidv4 } = require('uuid');

/**
 * Demo class for creating and managing Offers in Google Wallet.
 */
class DemoOffer {
  constructor() {
    /**
     * Path to service account key file from Google Cloud Console. Environment
     * variable: GOOGLE_APPLICATION_CREDENTIALS.
     */
    this.keyFilePath = process.env.GOOGLE_APPLICATION_CREDENTIALS || '/path/to/key.json';
    this.auth();
  }

Go

Untuk memulai integrasi Anda di Go, lihat contoh kode lengkap kami di GitHub contoh kode di GitHub.

package main

import (
	"bytes"
	"context"
	"encoding/json"
	"fmt"
	"github.com/golang-jwt/jwt"
	"github.com/google/uuid"
	"golang.org/x/oauth2"
	"golang.org/x/oauth2/google"
	oauthJwt "golang.org/x/oauth2/jwt"
	"google.golang.org/api/option"
	"google.golang.org/api/walletobjects/v1"
	"io"
	"log"
	"os"
	"strings"
)

Selanjutnya, gunakan salah satu library framework untuk mengambil kredensial yang diperlukan untuk memanggil Google Wallet API.

Java

Untuk memulai integrasi di Java, lihat contoh kode di GitHub.

/**
 * Create authenticated HTTP client using a service account file.
 *
 */
public void auth() throws Exception {
  credentials =
      GoogleCredentials.fromStream(new FileInputStream(keyFilePath))
          .createScoped(List.of(WalletobjectsScopes.WALLET_OBJECT_ISSUER));
  credentials.refresh();

  HttpTransport httpTransport = GoogleNetHttpTransport.newTrustedTransport();

  // Initialize Google Wallet API service
  service =
      new Walletobjects.Builder(
              httpTransport,
              GsonFactory.getDefaultInstance(),
              new HttpCredentialsAdapter(credentials))
          .setApplicationName("APPLICATION_NAME")
          .build();
}

PHP

Untuk memulai integrasi di PHP, lihat contoh kode di GitHub.

/**
 * Create authenticated HTTP client using a service account file.
 */
public function auth()
{
  $this->credentials = new ServiceAccountCredentials(
    Walletobjects::WALLET_OBJECT_ISSUER,
    $this->keyFilePath
  );

  // Initialize Google Wallet API service
  $this->client = new GoogleClient();
  $this->client->setApplicationName('APPLICATION_NAME');
  $this->client->setScopes(Walletobjects::WALLET_OBJECT_ISSUER);
  $this->client->setAuthConfig($this->keyFilePath);

  $this->service = new Walletobjects($this->client);
}

Python

Untuk memulai integrasi Anda di Python, lihat referensi contoh kode di GitHub.

def auth(self):
    """Create authenticated HTTP client using a service account file."""
    self.credentials = Credentials.from_service_account_file(
        self.key_file_path,
        scopes=['https://www.googleapis.com/auth/wallet_object.issuer'])

    self.client = build('walletobjects', 'v1', credentials=self.credentials)

C#

Untuk memulai integrasi Anda di C#, lihat referensi contoh kode di GitHub.

/// <summary>
/// Create authenticated service client using a service account file.
/// </summary>
public void Auth()
{
  credentials = (ServiceAccountCredential)GoogleCredential
      .FromFile(keyFilePath)
      .CreateScoped(new List<string>
      {
        WalletobjectsService.ScopeConstants.WalletObjectIssuer
      })
      .UnderlyingCredential;

  service = new WalletobjectsService(
      new BaseClientService.Initializer()
      {
        HttpClientInitializer = credentials
      });
}

Node.js

Untuk memulai integrasi Anda di Node, lihat paket lengkap contoh kode di GitHub.

/**
 * Create authenticated HTTP client using a service account file.
 */
auth() {
  const auth = new google.auth.GoogleAuth({
    keyFile: this.keyFilePath,
    scopes: ['https://www.googleapis.com/auth/wallet_object.issuer'],
  });

  this.credentials = require(this.keyFilePath);

  this.client = google.walletobjects({
    version: 'v1',
    auth: auth,
  });
}

Go

Untuk memulai integrasi Anda di Go, lihat contoh kode lengkap kami di GitHub contoh kode di GitHub.

// Create authenticated HTTP client using a service account file.
func (d *demoOffer) auth() {
	credentialsFile := os.Getenv("GOOGLE_APPLICATION_CREDENTIALS")
	b, _ := os.ReadFile(credentialsFile)
	credentials, err := google.JWTConfigFromJSON(b, walletobjects.WalletObjectIssuerScope)
	if err != nil {
		fmt.Println(err)
		log.Fatalf("Unable to load credentials: %v", err)
	}
	d.credentials = credentials
	d.service, _ = walletobjects.NewService(context.Background(), option.WithCredentialsFile(credentialsFile))
}

Permintaan Google Wallet Android SDK

Permintaan yang menggunakan Google Wallet Android SDK otomatis diautentikasi menggunakan sertifikat penandatanganan aplikasi Anda. Android SDK akan otomatis membuat sidik jari SHA-1 dari sertifikat penandatanganan Anda dan menyertakannya dengan permintaan ke Google Wallet API.

Untuk informasi selengkapnya tentang membuat dan mendaftarkan sidik jari SHA-1 sertifikat penandatanganan aplikasi, lihat Memberi otorisasi pada aplikasi untuk Google Wallet Android SDK.