sending and recieving files through RestBulider - total.js

Question

controller on localhost:8000
const fs = require("fs");
exports.install = function () {
ROUTE("GET /", indexPage);
};
function indexPage() {
var self = this;
console.log(" In GET ROUTE");
RESTBuilder.GET("http://127.0.0.1:8500/getFile/").stream(function (
err,
response
) {
if (err) {
console.log(err);
return;
}
var writer = fs.createWriteStream("./public/testBuilder.txt");
// console.log("Writing to file");
response.pipe(writer);
self.json({ thankyou: "ok" });
});
}
controller on localhost:8500
exports.install = function () {
ROUTE("GET /getFile/", test);
};
function test() {
var self = this;
console.log("#################");
console.log(self.body);
self.file("~trimSail/restBuilder.txt");
// });
}
above code works in totaljs 3 but failing in total4.
sending a file in response to RestBuilder.GET and streaming the response to file.
error response.pipe is not a function.

Answer 1

First of all, please clean your code.
Total.js guidelines https://docs.totaljs.com/welcome/67b47001ty51c/
Optimized for Total.js:
const Fs = require('fs');
exports.install = function () {
ROUTE('GET /', index);
};
function index() {
var $ = this;
console.log('In GET ROUTE');
RESTBuilder.GET('http://127.0.0.1:8500/getFile/').stream($.successful(function(response) {
var writer = Fs.createWriteStream('./public/testBuilder.txt');
response.stream.pipe(writer);
$.json({ thankyou: 'ok' });
}));
}