我正在努力寻找一种将两个文件上传到s3的解决方案。我可以使用multer上传一个文件,并且我已经学会了如何做。但是,当我尝试在formdata中的所有文件中进行映射并上传每个文件时,我将每个位置URL放入数组中,这是我保存的位置URL我的数据库。然后,我尝试打印每个URL,但令我惊讶的是,它们在if语句中打印,但是当我将其保存在if之外的数据库中时,却没有打印。可能是异步问题吗?谢谢。
tournamentsCtrl.createTournament = async (req, res) => {
var files_upload = []
if (req.files) {
aws.config.setPromisesDependency();
aws.config.update({
accessKeyId: process.env.AWS_ACCESS_KEY_ID,
secretAccessKey: process.env.AWS_SECRET_ACCESS_KEY,
//region: process.env.REGION
});
const s3 = new aws.S3();
req.files.map((item) => {
var params = {
ACL: 'public-read',
Bucket: process.env.AWS_BUCKET_NAME,
Body: fs.createReadStream(item.path),
Key: `tournament_img/${uuidv4()/* +req.file.originalname */}`
};
await s3.upload(params, (err, data) => {
if (err) {
console.log('Error occured while trying to upload to S3 bucket', err);
}
if (data) {
fs.unlinkSync(item.path); // Empty temp folder
const locationUrl = data.Location;
files_upload.push(locationUrl);
console.log(files_upload)
}
});
});
}
console.log(files_upload)
const new_data = { ...JSON.parse(req.body.values), img_source: files_upload[0], info_url: files_upload[1] }
console.log(new_data)
const newUser = new Tournaments(new_data);
newUser
.save()
.then(user => {
res.json({ message: 'User created successfully', user });
})
.catch(err => {
console.log('Error occured while trying to save to DB');
});
};