我目前正在尝试列出Google驱动器文件夹中所有图像的文件,并将它们下载到./images/{filename}。{extension}。
我已经开始运转了,但是又回来了
files: [
[Object], [Object], [Object], [Object], [Object], [Object],
[Object], [Object], [Object], [Object], [Object], [Object],
[Object], [Object]
]
这是我的代码:(节点v14,googleapis @ 39(我认为?))
const fs = require('fs');
const readline = require('readline');
const config = require('./options.json')
const {
google
} = require('googleapis');
// If modifying these scopes, delete token.json.
const SCOPES = ['https://www.googleapis.com/auth/drive'];
// 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('credentials.json', (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), listFiles);
});
/**
* 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);
});
});
}
/**
* 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({
folderId: config.folderID,
q: "mimeType contains 'image' and trashed = false"
}, function(error, response) {
if (error) {
return console.log("ERROR", error);
}
console.log(response);
response.items.forEach(function(item) {
var file = fs.createWriteStream("./" + item.title);
file.on("finish", function() {
console.log("downloaded", item.title);
});
// Download file
drive.files.get({
fileId: item.id,
alt: "media"
}).pipe(file);
});
});
}
此代码主要是复制粘贴代码,我必须重写它,但是我需要某种可行的版本才能启动。谢谢!
答案 0 :(得分:1)
我相信您的目标和情况如下。
为了实现您的目标,我想提出以下修改。
items
和title
分别是v3的files
和name
。
drive.files.list({folderId: config.folderID, q: "mimeType contains 'image' and trashed = false"})
,很遗憾,不能使用folderId
。在这种情况下,请在q
中包含文件夹ID。当以上几点反映到您的脚本时,它如下所示。
function listFiles(auth) {
const drive = google.drive({
version: "v3",
auth,
});
const folderId = "###"; // <--- Please set the folder ID.
drive.files.list(
{
q: `mimeType contains 'image' and trashed = false and '${folderId}' in parents`,
},
function (error, response) {
if (error) {
return console.log("ERROR", error);
}
console.log(response.data);
const items = response.data.files;
items.forEach(function (item) {
drive.files
.get({ fileId: item.id, alt: "media" }, { responseType: "stream" })
.then((res) => {
const dest = fs.createWriteStream("./" + item.name);
res.data
.on("end", () => {
console.log("downloaded", item.name);
})
.on("error", (err) => {
throw new Error(err);
})
.pipe(dest);
});
});
}
);
}
folderId
的特定文件夹中时,将下载图像文件。