req.file == undefined, always undefined - node.js

Question

I want to upload the excel file on the MySQL database and then import it back,
I have uses the technologies :
express
multer
mysql2
read-excel-file
sequelize
But when I upload the excel, req.file is showing undefined. in the excel controller folder.
I have checked the multer twice but it seems to be right.
I don't know what is the problem ...
Your answer will help me.
Thanks
Server-side code:
const multer = require("multer");
const excelFilter = (req, file, cb) => {
if (
file.mimetype.includes("excel") ||
file.mimetype.includes("spreadsheetml")
) {
cb(null, true);
} else {
cb("Please upload only excel file.", false);
}
console.log("done");
};
var storage = multer.diskStorage({
destination: (req, file, cb) => {
cb(null, __basedir + "/uploads");
},
filename: (req, file, cb) => {
console.log(file.originalname);
cb(null, `${Date.now()}-bestfile-${file.originalname}`);
},
});
var uploadFile = multer({ storage: storage, fileFilter: excelFilter });
module.exports = uploadFile;
Excel controller
const db = require("../../models");
const Branch = db.bestdata;
const readXlsxFile = require("read-excel-file/node");
const upload = async (req, res) => {
try {
console.log(req);
if (req.file == undefined) {
return res.status(400).send({ msg: "No, Excel File Uploaded" });
}
let path = __basedir + "/uploads/" + req.file.filename;
readXlsxFile(path).then((rows) => {
// skip header
rows.shift();
let branchArray = [];
rows.forEach((row) => {
let branchtoArray = {
id: row[0],
branch_name: row[1],
mgr_id: row[2],
mgr_start_date: row[3],
};
branchArray.push(branchtoArray);
});
Branch.bulkCreate(branchArray)
.then(() => {
res.status(200).send({
message: "Uploaded the file successfully: " + req.file.originalname,
});
})
.catch((error) => {
res.status(500).send({
message: "Fail to import data into database!",
error: error.message,
});
});
});
} catch (error) {
console.log(error);
res.status(500).send({
message: "Could not upload the file: " + req.file.originalname,
});
}
};
const GetImport = (req, res) => {
Branch.findAll()
.then((data) => {
res.send(data);
})
.catch((err) => {
res.status(500).send({
message:
err.message || "Some error occurred while retrieving tutorials.",
});
});
};
module.exports = {
upload,
GetImport,
};
Router:
const express = require("express");
const router = express.Router();
const excelController = require("../controller/BestData/excel.controller.js");
const uploadFile = require("../middlewares/upload.js");
let routes = (app) => {
router.post("/upload", uploadFile.single("file"), excelController.upload);
router.get("/import", excelController.GetImport);
app.use("/excel", router);
};
module.exports = routes;
Snapshot of postman test
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Excel File uploading
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Answer 1

The answer is simple: Destination and path should be the same.: