问题描述
如何使用node将文件发布到Amazon S3并作出反应并将其路径保存到mongoDB。猫鼬和强大。
解决方法
private async storeFile(file: { buffer: Buffer,fileId: string }): Promise<string> {
try {
const awsConfig = new AWS.Config(storageConfig);
const s3 = new AWS.S3(awsConfig);
let storageLink = undefined;
fs.readFile(file.buffer,(err,data) => {
if (err) {
throw err;
}
const params = {
Bucket:storageConfig.s3Bucket,Key: `${storageConfig.s3Prefix}${file.fileId}`,Body: data,};
s3.upload(params,(s3Err: Error,s3Data: AWS.S3.ManagedUpload.SendData) => {
if (s3Err) {
throw s3Err;
}
storageLink = s3Data.Location;
});
});
return storageLink;
} catch (error) {
throw error;
}
}
在您要调用此功能的服务文件中,使用集合中的记录进行更新
const storageLink = this.storeFile({ buffer,fileId });
const file = await file.updateOne({ _id: fileId },{
status: fileStatus.UPLOADED,// just a flag
fileId: storageLink,});