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[英]Getting image from REST API and uploading it to Firebase Cloud Storage using Firebase Cloud Functions
[英]Store file in Firebase Storage using Cloud Functions REST API request
如何通过Firebase Cloud Functions中的POST(表单数据)HTTP REST请求存储文件,以便我可以在REST请求之后在云中进行处理,然后存储在链接到我的项目的存储桶中。
例如,它非常易于访问,但存储却不是,我尝试使用多方和busboy NodeJS库,但问题仍然在于Im无法将其保存在Firebase Storage中 。
var busboy = new Busboy({
headers: req.headers
});
busboy.on('file', function(fieldname, file, filename, encoding, mimetype) {
file.on('data', function(data) {
// const object = data;
// const fileBucket = object.bucket;
// const bucket = gcs.bucket(filename);
// const tempFilePath = path.join(os.tmpdir(), filename);
console.log(data);
});
file.on('end', function() {
console.log('File [' + fieldname + '] Finished');
});
});
busboy.on('field', function(fieldname, val, fieldnameTruncated, valTruncated, encoding, mimetype) {
console.log('Field [' + fieldname + ']: value: ' + inspect(val));
});
busboy.on('finish', function() {
console.log('Done parsing form!');
res.writeHead(200, {
Connection: 'close'
});
res.end();
});
req.pipe(busboy);
最后,我完成了此解决方案并正常工作
router.post('/upload', function (req, res) {
var busboy = new Busboy({headers: req.headers});
var files = 0, finished = false;
busboy.on('file', function (fieldname, file, filename, encoding, mimetype) {
console.log('File [' + fieldname + ']: filename: ' + filename);
console.log("Uploading: " + filename);
++files;
var path = temp.writeFileSync(file);
var fstream = fs.createWriteStream(path);
fstream.on('finish', function () {
if (--files === 0) {
var bucket = firebase.bucket();
// Upload a local file to a new file to be created in your bucket.
bucket.upload(path+"",function (err, file) {
if (!err) {
console.log("Uploaded: " + path);
res.json({
uploaded: true,
created_at: new Date().getTime(),
filename: filename,
path: path,
mimeType: mimetype
});
}else{
console.error("err: " + err);
var error = new ErrorResponse(400);
error.errors+=err;
res.json(error);
}
});
}
});
file.pipe(fstream);
});
从Firebase函数访问fireabse / google云存储的最简单方法是使用node js google cloud软件包作为服务,在本例中为@ google-cloud / storage 。
一旦它成为函数依赖项的一部分,您只需在函数js文件中启动它即可:
const gcs = require('@google-cloud/storage')();
由于该功能在Google云端环境中运行,因此无需提供身份验证信息(除非存储和功能不属于同一Google Cloud / Firebase项目)。
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