Forwarding FormData() request from NodeJS to another service - node.js

Question

I am trying to forward my request from my NodeJS Proxy server to another server. The request I am trying to forward contains FormData()
I created FormData as per MDN docs
const payload = new FormData();
payload.append('addresses', file); // <---- UPLOADED FILE
payload.append('reason', 'reason');
payload.append('type', 'type');
This is how I am essentially sending the request to my NodeJS server
fetch("localhost:3000/v1/addresses", {
method: 'PUT',
body: payload
});
NodeJS Server at localhost:3000
const multer = require('multer');
const upload = multer();
app.put('/v1/addresses', upload.single('addresses'), (req, res) => {
let options = {
host: 'localhost',
method: 'PUT',
port: 8000,
path: req.originalUrl,
headers: req.headers,
formData: {
reason: req.body.reason,
type: req.body.type,
}
};
console.log("reason", req.body.reason) // "reason"
console.log("type", req.body.type) // "type"
console.log("addresses", req.file) // FILE OBJECT
const request = http.request(options, response => {
res.writeHead(response.statusCode, response.headers);
response.pipe(res);
});
request.end();
})
The code above, I'm not sure how to send over the actual file to the other service. Also, I am NOT seeing the reason and and type that I've passed over to the service.
What's also strange is that I see this in the incoming request in my NON- PROXY server
PUT /v1/addresses HTTP/1.1
Host: localhost:3000
Connection: keep-alive
Content-Length: 932
Sec-Ch-Ua: "Google Chrome";v="89", "Chromium";v="89", ";Not A Brand";v="99"
Sec-Ch-Ua-Mobile: ?0
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36
Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryt2p0AWOqJCnz95hg
Accept: */*
Origin: http://localhost:3000
Sec-Fetch-Site: same-origin
Sec-Fetch-Mode: cors
Sec-Fetch-Dest: empty
Referer: http://localhost:3000/blocklist
Accept-Encoding: gzip, deflate, br
Accept-Language: en-US,en;q=0.9
[object Object]

Answer 1

So after lots of searching and experimenting, this post actually provided me with the answer
Here is the code from the post.
const express = require("express");
const app = express();
const bodyParser = require('body-parser');
var multer = require('multer')();
const FormData = require('form-data');
const axios = require('axios');
const fs = require('fs');
app.use(bodyParser.json());
app.post('/fileUpload' , multer.single('fileFieldName'), (req , res) => {
const fileRecievedFromClient = req.file; //File Object sent in 'fileFieldName' field in multipart/form-data
console.log(req.file)
let form = new FormData();
form.append('fileFieldName', fileRecievedFromClient.buffer, fileRecievedFromClient.originalname);
axios.post('http://server2url/fileUploadToServer2', form, {
headers: {
'Content-Type': `multipart/form-data; boundary=${form._boundary}`
}
}).then((responseFromServer2) => {
res.send("SUCCESS")
}).catch((err) => {
res.send("ERROR")
})
})
const server = app.listen(3000, function () {
console.log('Server listening on port 3000');
});