nodejsgoogledriveapi如何更新文件

• 您想用以下文本覆盖现有的Google文档: hi there 使用服务帐户使用驱动器API。
• 你可以用googleapis。

示例脚本:

const stream = require('stream');
const {google} = require('googleapis');
const creds = require('###'); // Please set the json file path downloaded when the Service Account is created.
const jwtClient = new google.auth.JWT(
    creds.client_email,
    null,
    creds.private_key,
    ['https://www.googleapis.com/auth/drive'],
    null
);

const id = "1vebqOamZ9QB4HqfUaQN-U9Zt4y33eij-I21glMvaPVQ"; // Please set the file ID of Google Document
const content = "hi there"; // Please set the text.

const drive = google.drive({version: 'v3', auth: jwtClient});
const buf = Buffer.from(content, 'binary');
const buffer = Uint8Array.from(buf);
var bufferStream = new stream.PassThrough();
bufferStream.end(buffer);
const media = {
    mimeType: 'application/vnd.google-apps.document',
    body: bufferStream,
};
drive.files.update({
    fileId: id,
    media: media,
}, (err, res) => {
    if (err) {
        console.log(err);
        return;
    }
    console.log(res.data);
});

注:

• 运行脚本时,现有的Google文档将被覆盖。所以请小心这个。我建议使用示例文档进行测试。
• 如果此脚本不起作用,请确认以下几点。
  1. 在API控制台上启用了驱动器API。
  2. 可以使用服务帐户。
  3. 谷歌文档与服务帐户共享。

参考:

• Files: update

• 你不想用googleapis。

从你的评论中,我明白了上面的意思。如果我的理解是正确的,那么这个示例脚本怎么样?运行此脚本时,请确认以下几点。

1. 关于剧本,
   • 请从服务帐户的JSON文件设置privateKey和clientEmail。
   • 请设置要覆盖的现有Google文档的文件ID。
2. 在API控制台上启用了驱动器API。
4. 谷歌文档与服务帐户共享。
5. googleapis的版本是最新的。

示例脚本:

const cryptor = require('crypto');
const request = require('request');

// Get access token using Service Account
function getAccessToken(serviceAccount) {
    const scopes = ["https://www.googleapis.com/auth/drive"];
    const url = "https://www.googleapis.com/oauth2/v4/token";
    const header = {
        alg: "RS256",
        typ: "JWT",
    };
    const now = Math.floor(Date.now() / 1000);
    const claim = {
        iss: serviceAccount.clientEmail,
        scope: scopes.join(" "),
        aud: url,
        exp: (now + 3600).toString(),
        iat: now.toString(),
    };
    const signature = Buffer.from(JSON.stringify(header)).toString('base64') + "." + Buffer.from(JSON.stringify(claim)).toString('base64');
    var sign = cryptor.createSign('RSA-SHA256');
    sign.update(signature);
    const jwt = signature + "." + sign.sign(serviceAccount.privateKey, 'base64');
    return new Promise(function(resolve, reject) {
        request({
            method: "post",
            url: url,
            body: JSON.stringify({
                assertion: jwt,
                grant_type: "urn:ietf:params:oauth:grant-type:jwt-bearer",
            }),
        }, (err, res, body) => {
            if (err) {
                console.log(err);
                return;
            }
            const obj = JSON.parse(body);
            resolve(obj.access_token);
        });
    });
}

// Overwrite file in Google Drive
function overWriting(object) {
    const metadata = {
        mimeType: "application/vnd.google-apps.document",
    };
    const url = "https://www.googleapis.com/upload/drive/v3/files/" + object.googleDocumentFileId + "?uploadType=multipart";
    const boundary = "xxxxxxxxxxx";
    var data = "--" + boundary + "\r\n";
    data += "Content-Disposition: form-data; name=\"metadata\"\r\n";
    data += "Content-Type: application/json; charset=UTF-8\r\n\r\n";
    data += JSON.stringify(metadata) + "\r\n";
    data += "--" + boundary + "\r\n";
    data += "Content-Disposition: form-data; name=\"file\"; filename=\"sample.txt\"\r\n";
    data += "Content-Type: text/plain" + "\r\n\r\n";
    const payload = Buffer.concat([
        Buffer.from(data, "utf8"),
        new Buffer(object.textData, 'binary'),
        Buffer.from("\r\n--" + boundary + "--", "utf8"),
    ]);
    const options = {
        method: 'patch',
        url: url,
        headers: {
            "Content-Type": "multipart/related; boundary=" + boundary,
            'Authorization': 'Bearer ' + object.accessToken,
        },
        body: payload,
    };
    request(options, (error, response, body) => {
        console.log(body);
    });

}

async function main() {
    const serviceAccount = {
        privateKey: "###", // private_key of JSON file retrieved by creating Service Account
        clientEmail: "###", // client_email of JSON file retrieved by creating Service Account
    };
    var object = {
        googleDocumentFileId: "###", // Set the file ID of the existing Google Document
        textData: "hi there",
    };
    const accessToken = await getAccessToken(serviceAccount);
    if (accessToken) {
        object.accessToken = accessToken;
        overWriting(object);
    }
}

main();