Passing NodeJS data to Javascript

Question

I have a web application with a client that receives data from a server. I have the data in NodeJS, but I want to pass the data to a Javascript file. The Javascript file is included in a HTML file, so I can't make the files communicate with eachother.

I am new to NodeJS, so it can be a stupid question, but anyones help is appreciated

This is for a project where I need have a data stream, and I need to pass it into a web application. I tried to pass the data to different page inside my application and then I tried to get that data on that page inside my web application via Javascript, but I couldn't make that work. I'm not even sure if its possible at this point.

If you have a web application then you have some backend, why not make a get request to it from the javascript (by returning JSON)? — tomerpacific
– tomerpacific, Commented Jun 27, 2019 at 7:15
You can use the XMLHttpRequest for doing that, and if you have implemented jQuery on your front, you can use ajax. Your node server can't communicate with your front-end but your front-end can call your node server, so with a get request as said @tomerpacific before you can get your data. For that you have to open a route with your express app. Take a look on : developer.mozilla.org/fr/docs/Web/API/XMLHttpRequest and expressjs.com/fr/guide/routing.html — Benoit Chassignol
– Benoit Chassignol, Commented Jun 27, 2019 at 7:23
Your front-end can in-fact communicate with the front-end, via a websocket! — Lee Brindley
– Lee Brindley, Commented Jun 27, 2019 at 7:27
@mHvNG Tell if it's all right for you i gonna put my comment as an answer. — Benoit Chassignol
– Benoit Chassignol, Commented Jun 27, 2019 at 7:28

Benoit Chassignol · Accepted Answer · 2019-06-27 07:35:25Z

1

Your node server can't communicate with your front-end without a specific way of communication like websocket, you have many other way to communicate with your front-end as node-server, take a look at server send event for example.

By the way your front-end can call your node server more easely with a get request as said @tomerpacific in comment.

For that you have to open a route with your express app. Routing with express And for call it on a GET request, for that you can use the XMLHttpRequest, and if you have implemented jQuery on your front, you can use Ajax jQuery.

answered Jun 27, 2019 at 7:35

Benoit Chassignol

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