node.js - 我想向我的 api 发送一个发布请求，其中正文包含 html 输入文件标记的文件路径。但我得到“C:\fakepath\Book1.xlsx”

Question

我想在 Drive Api 中实现文件上传。我所做的是创建一个函数来发送所选文件的文件路径。但我得到的是假路径。我对这个问题的替代解决方案持开放态度。

这是我的反应组件中的功能

onChangeFile = (e) => {
    console.log(e.target.value)
    this.setState({excelFilePath: e.target.value})
}
onSubmitFile = () => {
    fetch("http://localhost:3001/submitForm", {
        method: "post",
        headers: {
            "Content-Type": "application/json"
        },
        body: JSON.stringify({
            excelFilePath: this.state.excelFilePath
        })
    })
    .then(res => res.json())
    .then(data => console.log(data))
    .catch(console.log)
}

这是我的节点 js api，它处理将所选文件上传到 Google Drive。最后一个函数是我包含 req.body.excelFilePath 的地方

const handleSubmitForm = (req, res) => {
const fs = require('fs');
const readline = require('readline');
const {google} = require('googleapis');

// If modifying these scopes, delete token.json.
const SCOPES = ['https://www.googleapis.com/auth/drive.file'];
// 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), uploadExcel);
});

/**
 * 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);
    });
});
}

function uploadExcel(auth){
    console.log(req.file)
    const drive = google.drive({version: 'v3', auth});
    
    var fileMetadata = {
        'name': 'BP201',
        'mimeType': 'application/vnd.google-apps.spreadsheet'
      };
      var media = {
        mimeType: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet',
        body: fs.createReadStream(req.body.excelFilePath)
      };
      drive.files.create({
        resource: fileMetadata,
        media: media,
        fields: 'id'
      }, function (err, file) {
        if (err) {
          // Handle error
          console.error(err);
        } else {
          console.log('File Id:', file.id);
        }
      });
}
res.sendStatus(200);

}

module.exports = { handleSubmitForm: handleSubmitForm }

标签： node.jsexpressgoogle-drive-api