我正在创建一个项目,用户(客户端)可以使用谷歌登录并允许我访问他的谷歌分析帐户。
您混淆了条款,登录就是登录,您想要的是用户授予您的应用程序访问其数据的权限,这是 Oauth2。
然后我会根据分析数据向他展示一些图表和图表。
请记住,从 api 返回的数据是 Json 的形式,如果您想向它们显示字符和图形,那么您需要自己创建这些。
到目前为止,我只为我的帐户执行此操作。我在 google 控制台上创建了一个新帐户,下载了 cred.json 文件,在我的 google 分析仪表板上授予该帐户的权限。
cred.json 文件仅使您的应用程序能够让用户同意访问您的应用程序。它没有链接到任何谷歌分析帐户。用户仍需要授予您的应用程序对其数据的访问权限。
我想要的是用户可以在客户端登录,让我访问他的分析(当谷歌登录提示出现时),然后我将使用该访问令牌进行 API 调用后端,然后将他的数据发送给他。
这称为 Oauth2,用户同意您访问他们的数据。
没有带有谷歌分析 api 的 Node.js 官方示例。
几年前我创建了一个教程,可以帮助您入门。 Google analytics Node.js
const fs = require('fs');
const readline = require('readline');
const {google} = require('googleapis');
const dotenv = require('dotenv');
dotenv.config();
const CRED_FILE_PATH = process.env.API_CREDS;
console.log(`Your cred path is ${CRED_FILE_PATH}`); // ../creds.json
const VIEW_ID = process.env.VIEW_ID;
console.log(`Your view id is ${VIEW_ID}`);
// If modifying these scopes, delete token.json.
const SCOPES = ['https://www.googleapis.com/auth/analytics.readonly'];
// The file token.json stores the user's access and refresh tokens, and is
// created automatically when the authorization flow completes for the first
// time.
const TOKEN_PATH = 'token.json';
// Load client secrets from a local file.
fs.readFile(CRED_FILE_PATH, (err, content) => {
if (err) return console.log('Error loading client secret file:', err);
// Authorize a client with credentials, then call the Google Drive API.
authorize(JSON.parse(content), getUserReport);
});
/**
* Create an OAuth2 client with the given credentials, and then execute the
* given callback function.
* @param {Object} credentials The authorization client credentials.
* @param {function} callback The callback to call with the authorized client.
*/
function authorize(credentials, callback) {
const {client_secret, client_id, redirect_uris} = credentials.installed;
const oAuth2Client = new google.auth.OAuth2(
client_id, client_secret, redirect_uris[0]);
// Check if we have previously stored a token.
fs.readFile(TOKEN_PATH, (err, token) => {
if (err) return getAccessToken(oAuth2Client, callback);
oAuth2Client.setCredentials(JSON.parse(token));
callback(oAuth2Client);
});
}
/**
* Get and store new token after prompting for user authorization, and then
* execute the given callback with the authorized OAuth2 client.
* @param {google.auth.OAuth2} oAuth2Client The OAuth2 client to get token for.
* @param {getEventsCallback} callback The callback for the authorized client.
*/
function getAccessToken(oAuth2Client, callback) {
const authUrl = oAuth2Client.generateAuthUrl({
access_type: 'offline',
scope: SCOPES,
});
console.log('Authorize this app by visiting this url:', authUrl);
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
rl.question('Enter the code from that page here: ', (code) => {
rl.close();
oAuth2Client.getToken(code, (err, token) => {
if (err) return console.error('Error retrieving access token', err);
oAuth2Client.setCredentials(token);
// Store the token to disk for later program executions
fs.writeFile(TOKEN_PATH, JSON.stringify(token), (err) => {
if (err) return console.error(err);
console.log('Token stored to', TOKEN_PATH);
});
callback(oAuth2Client);
});
});
}
/**
* Number of users between last week and two weeks ago.
* @param {google.auth.OAuth2} auth An authorized OAuth2 client.
*/
function getUserReport(auth) {
const service = google.analyticsreporting({version: 'v4', auth});
const googleAnalyticsReports = {
resource: {
reportRequests: [{
viewId: VIEW_ID,
dateRanges: [
{
startDate: '14daysAgo',
endDate: '7daysAgo'
}
],
metrics: [
{
expression: 'ga:users'
}
]
}]
}
};
service.reports.batchGet(googleAnalyticsReports, (err, res) => {
if (err) return console.log('The API returned an error: ' + err);
const reports = res.data.reports;
if (reports.length) {
console.log('Reports:');
reports.forEach(report => {
console.log('\tMetrics:');
report.columnHeader.metricHeader.metricHeaderEntries.forEach(metricHeader => console.log('\t\t', metricHeader.name))
report.data.rows.forEach(row => console.log('\t\t', row.metrics))
}
);
} else {
console.log('No data found.');
}
});
}