需要使用 fastify-multer 將圖像上傳到 AWS S3 服務器，出現 [Function: multerPreHandler] 錯誤

Question

1. 使用的包

const fastify = require('fastify');
        const multer = require('fastify-multer');
        const server = fastify();
        server.register(multer.contentParser);
        var AWS = require("aws-sdk");
        var s3 = new AWS.S3();
        var storage = multer.memoryStorage();
        var upload = multer({ storage: storage }); 

靈感來自羅漢保羅
2.功能將文件上傳到AWS S3存儲桶

   uploadInvoice = async (req, res) => {
             var files = upload.single("file");
             try {
             
             const s3FileURL = ' https://up.s3.amazonaws.com/';
         
             let s3bucket = new AWS.S3({
                 secretAccessKey: "",
                 accessKeyId: "",
                 region: ""
             });
         
             const params = {
                 Bucket: '',
                 Body: files.buffer,
                 ContentType: files.mimetype,
                 ACL: "public-read",
                 key: files.originalname
             };
            
             s3bucket.upload(params, function (err, files) {
                 if (err) {
                     res.status(500).json({ error: true, Message: err });
                 } else {
                     res.send({ files });
                     var newFileUploaded = {
                         description: req.body.description,
                         fileLink: s3FileURL + files.originalname,
                         s3_key: params.Key
                     };
                     var document = new DOCUMENT(newFileUploaded);
                     document.save(function (error, newFile) {
                         if (error) {
                             throw error;
                         }
                     });
                 }
             });
         };

我得到的錯誤是 HttpErrorResponse {headers: HttpHeaders, status: 500, statusText: "Internal Server Error", url: "http://localhost:3000/v1/upload/files", ok: false, ...} 錯誤： {statusCode: 500, error: "Internal Server Error", message: "params.Body is required"} headers: HttpHeaders {normalizedNames: Map(0), lazyUpdate: null, lazyInit: ƒ} message: "Http failure response for http ://localhost:3000/v1/upload/files: 500 Internal Server Error" name: "HttpErrorResponse" ok: false status: 500 statusText: "Internal Server Error" url: "http://localhost:3000/v1/upload /files"原型：HttpResponseBase

Answer 1

在您的 params 中，“key”是小寫的，而在上傳您使用的 params.Key 應該是 params.key

Answer 2

如果您正在使用 fastify，請使用 fs 和 pump 而不是 multer，因為到目前為止，fastify-multer 不能完全用於 AWS S3 上傳

Answer 3

也許您可以嘗試使用multer-s3 。 它也應該與fastify-multer 。

https://github.com/anacronw/multer-s3