How do I convert object to string in node js

Question

I am very new to node js. I am trying to create a simple coap client and server using node js. I could create a server on which a text file resides. I want to access that from the client.

var coap = require('coap');
var str = "";
var req = coap.request("coap://localhost:5683");
req.on("response", function(chunk){
    str +=chunk;    
    console.log(str);   
    chunk.pipe(process.stdout);
});

This code is giving me the output as [object Object]. How do I get the string form of this.

skypjack · Accepted Answer · 2015-07-24 06:43:24Z

5

You can use JSON.stringify and JSON.parse to do that. Here the documentation.

answered Jul 24, 2015 at 6:43

skypjack

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6 Comments

Angela Over a year ago

Using JSON.stringify is also giving me the same output. :(

skypjack Over a year ago

Wait. Is that chunk a node buffer? My fault, I didn't get it before. Is it?

Angela Over a year ago

yes it is. Its a chunk of data from the file on the server.

skypjack Over a year ago

What does the file contain? If you want to parse an object read from that file, you have to write something there that makes sense...

Angela Over a year ago

Its is simple text file

|

Rajnish Anand · Accepted Answer · 2021-06-13 23:43:55Z

0

for general purpose : JSON.stringify(obj);

if object includes functions : require("util").inspect(obj);

read it here : https://nodejs.org/en/knowledge/getting-started/how-to-use-util-inspect/

answered Jun 13, 2021 at 23:43

Rajnish Anand

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