router.post('/image', multipartMiddleware , function(req, res) {
var file_name = req.body.name;
var data = req.body.data;
return s3fsImpl.writeFile(file_name , data , 'base64').then(function (err) {
res.status(200).end();
});
});
我上面的代码出了什么问题?我的热中没有错误,我的 s3 中有该文件,但下载时它已损坏。
由于我不知道您的代码中s3fsImpl
是什么,因此我无法回答您的实现,但这是我使用 aws-sdk 的方法:
const AWS = require('aws-sdk');
const s3 = new AWS.S3({apiVersion: '2006-03-01'});
const file_name = req.body.name;
const data = req.body.data;
// We need to get the format of the file from the base64 string i.e. data:image/png;base64<base64String>
const format = data.substring(data.indexOf('data:')+5, data.indexOf(';base64'));
// We need to get the actual file data from the string without the base64 prefix
const base64String = data.replace(/^data:image/w+;base64,/, '');
const buff = new Buffer(base64String,'base64');
s3.upload({
Bucket:'s3-bucket-name',
Key: file_name,
Body: buff,
ContentEncoding:'base64',
ContentType:format
}, function(err, data) {
if (err) console.log(err, err.stack); // an error occurred
else console.log(data); // successful response
});