simple JS script which use Twitch.tv API v3

getInfoTwitchTv.js

#!/bin/env node
// USE: ./getInfoTwitchTv.js <channelname>
'use strict';
if(process.argv.length < 2) return;
var channel = process.argv[2].trim();
if(!channel) return;

var request = require('request');
const URL = 'https://api.twitch.tv/kraken/streams/' + channel;

var options = {
  url: URL,
  qs: {	client_id: '<CLIENT ID>'  }
};

function callback(error, response, body) {
  if (!error && response.statusCode == 200) {
    var infoStream = JSON.parse(body).stream;
    if(infoStream == null) return;

    var infoChannel = infoStream.channel; 

    var info = { 
    	"title": infoChannel.status , 
    	"game": infoStream.game , 
    	"viewers": infoStream.viewers , 
    	"followers": infoChannel.followers , 
    	"user": infoChannel.name , 
    	"partner": infoChannel.partner 
    };
	
    console.log( JSON.stringify(info, null, ' ') );
  }
}

request(options, callback);

package.json

{
  "name": "info_twitchtv",
  "version": "1.0.0",
  "description": "Show channel informations from Twitch Tv",
  "main": "getInfoTwitchTv.js",
  "author": "Micael Levi",
  "license": "ISC",
	"dependencies":{
		"request": "latest"
	}
}

$ npm install
$ chmod +x getInfoTwitchTv.js

get client_id: https://www.twitch.tv/kraken/oauth2/clients/new

output example

{
  "title": "(PC 21:9) Day 32 - Road to Twitch partnership",
  "game": "APB Reloaded",
  "viewers": 97,
  "followers": 7566,
  "user": "mydopefish",
  "partner": false
}

on bash with cURL and jq

curl -s \
	--header 'Accept: application/vnd.twitchtv.v3+json' \
	--header 'Client-ID: <CLIENT ID>' \
	--request GET "https://api.twitch.tv/kraken/streams/${channel}/" |
	jq '.stream' |
	jq '{ "title": .channel.status , "game": .game , "viewers": .viewers , "followers": .channel.followers , "user": .channel.name , "partner": .channel.partner }'