我有这段代码是为了从Google Drive
下载文件:
function downloadDrive(fileId, callback) {
var fileExt = fileId.split(".");
var file = Date.now() + "." + fileExt[fileExt.length - 1];
var dest = fs.createWriteStream("./files/"+file);
service.files.get({
auth: oauth2Client,
fileId: fileExt[0],
alt: "media"
})
.on("finish", function() {
callback(file);
})
.on("error", function(err) {
console.log("Error during download", err);
})
.pipe(dest);
}
它适用于小文件~500Mb。但是,当试图下载一个相当大的gzip文件~3Gb时,它会引发以下错误。
buffer.js:23
const ui8 = new Uint8Array(size);
^
RangeError: Invalid typed array length
at new Uint8Array (native)
at createBuffer (buffer.js:23:15)
at allocate (buffer.js:98:12)
at new Buffer (buffer.js:53:12)
at Function.Buffer.concat (buffer.js:225:16)
at BufferList.copy (/Synology/server_Metagenomics/server/node_modules/googleapis/node_modules/google-auth-library/node_modules/request/node_modules/bl/bl.js:124:21)
at BufferList.slice (/Synology/server_Metagenomics/server/node_modules/googleapis/node_modules/google-auth-library/node_modules/request/node_modules/bl/bl.js:99:15)
at BufferList.toString (/Synology/server_Metagenomics/server/node_modules/googleapis/node_modules/google-auth-library/node_modules/request/node_modules/bl/bl.js:166:15)
at Request.<anonymous> (/Synology/server_Metagenomics/server/node_modules/googleapis/node_modules/google-auth-library/node_modules/request/request.js:1035:36)
at emitOne (events.js:82:20)
at Request.emit (events.js:169:7)
我没有找到很多有关它的信息。发生了什么事?
答案 0 :(得分:1)
您可以尝试以下下载文件。该错误似乎是因为您正在下载大文件。
var filename = 'zzz.txt';
var proxyUrl = "http://" + user + ":" + password + "@" + host + ":" + port;
var token = 'YOUR_TOKEN';
var req = request.get('https://www.googleapis.com/drive/v3/files/YOUR_FILE_ID?alt=media', {
'auth': {
'bearer': token
},
'proxy': proxyUrl
}).on('response', function(res) {
// create file write stream
var fws = fs.createWriteStream(filename);
// setup piping
res.pipe(fws);
res.on('err', function() {
console.log("error occured.....");
});
res.on('end', function() {
console.log('Done');
// go on with processing
});
});