因此,我正在尝试制作一个小脚本,通过遵循Google API教程,使用Google Drive API下载一个肯定是excel文件,但我被困在两个错误中:“无法读取未定义的属性'on'”和“请求的转换不受支持” 这是代码:
const fs = require('fs');
const readline = require('readline');
const {google} = require('googleapis');
const SCOPES = ['https://www.googleapis.com/auth/drive'];
const TOKEN_PATH = 'token.json';
fs.readFile('credentials.json', (err, content) => {
if (err) return console.log('Error loading client secret file:', err);
authorize(JSON.parse(content), listFiles);
});
/**
* @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]);
fs.readFile(TOKEN_PATH, (err, token) => {
if (err) return getAccessToken(oAuth2Client, callback);
oAuth2Client.setCredentials(JSON.parse(token));
callback(oAuth2Client);
});
}
/**
* @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);
fs.writeFile(TOKEN_PATH, JSON.stringify(token), (err) => {
if (err) return console.error(err);
console.log('Token stored to', TOKEN_PATH);
});
callback(oAuth2Client);
});
});
}
/**
* Lists the names and IDs of up to 10 files.
* @param {google.auth.OAuth2} auth An authorized OAuth2 client.
*/
function listFiles(auth) {
const drive = google.drive({version: 'v3', auth});
drive.files.list({
pageSize: 10,
fields: 'nextPageToken, files(id, name)',
}, (err, res) => {
if (err) return console.log('The API returned an error: ' + err);
const files = res.data.files;
if (files.length) {
console.log('Files:');
files.map((file) => {
console.log(`${file.name} (${file.id})`);
});
} else {
console.log('No files found.');
}
var fileId = '1lKhyW1O519_1V1QhL9Vkbu55HqyfrgaUbnF4fmhZqU0';
var dest = fs.createWriteStream('/home/oem/Desktop/TTHIS/report-2019-03-26.xls');
drive.files.export({
fileId: fileId,
mimeType: 'xls'
})
.on('end', function () {
console.log('Done');
})
.on('error', function (err) {
console.log('Error during download', err);
})
.pipe(dest);
});
}
请记住,代码的第一部分仅用于授权,因此真正的问题始于函数listFiles()。 谢谢您的时间!
答案 0 :(得分:1)
此修改如何?
response.data
,使用{responseType: 'stream'}
。
xls
的mimeType。对于xlsx格式,请使用application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
的mimeType。请进行如下修改。
从:var fileId = '1lKhyW1O519_1V1QhL9Vkbu55HqyfrgaUbnF4fmhZqU0';
var dest = fs.createWriteStream('/home/oem/Desktop/TTHIS/report-2019-03-26.xls');
drive.files.export({
fileId: fileId,
mimeType: 'xls'
})
.on('end', function () {
console.log('Done');
})
.on('error', function (err) {
console.log('Error during download', err);
})
.pipe(dest);
至:
var fileId = '1lKhyW1O519_1V1QhL9Vkbu55HqyfrgaUbnF4fmhZqU0';
var dest = fs.createWriteStream('/home/oem/Desktop/TTHIS/report-2019-03-26.xls');
drive.files.export({
fileId: fileId,
mimeType: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
}, {responseType: 'stream'}, function(err, response) {
response.data
.on('end', function() {
console.log("Done.");
})
.on('error', function(err) {
console.log('Error during download', err);
return process.exit();
})
.pipe(dest);
});
1lKhyW1O519_1V1QhL9Vkbu55HqyfrgaUbnF4fmhZqU0
的文件为Spreadsheet。在我的环境中,我可以确认此修改后的脚本有效。但是,如果这对您的环境不起作用,我深表歉意。