javascript - How to handle a get request with node.js (express) -

javascript - How to handle a get request with node.js (express) -

i'm node.js newbie , i'm creating first big app (i'm using express). need have webpage perform javascript canvas-drawing when user loads id request, e.g.

www.mywebsite.com/page?id=22

i know can handle simple

var express = require("express"); var app = express(); app.get('handle',function(request,response){ //request.id });

but don't know how start webpage asked drawing id. every tutorial on net on express , explains how handle requests... question "what happens next?"

rephrased: i'm not sure how should tell html page "you need draw associated id" express , send page user.

you can take id params , after homecoming response based on id.

var express = require('express'); var app = express(); app.get("/page/:id",function(request, response){ var id = request.params.id; // id // send response user based on id var obj = { id : id, content : "content " +id }; response.writehead(200, {"content-type": "application/json"}); response.write(json.stringify(obj)); });

notes:

you utilize /page/:id create urls www.mywebsite.com/page/22 or www.mywebsite.com/page?id=22 , can have acces id on server request.params.id (output: 22).

with response can write response server. in illustration returned json object.

in writehead 200 come status means ok , , content-type means homecoming json object

you can homecoming want, page or else, illustration (poc).

javascript node.js express get