steamworkers-webapi/src/utils/fetch.js

api for steamworks

const {createGunzip} = require('zlib')
const https = require('https')
const http = require('http')
const {parse} = require('url');
const reg = /<h1>(.*)<\/h1>/;


module.exports = (url,{headers}={})=>{
    const fetch = url.startsWith('https')?https.get:http.get;
    const options = Object.assign(parse(url),{headers:Object.assign({'Accept-Encoding': 'gzip'},headers)});

    return new Promise((resolve,reject)=>{
        
        fetch(options,res=>{
            const ce = res.headers['content-encoding'];

            let  data = '';
            let  op = res;

            if(ce==='gzip') res.pipe(op=createGunzip())

            op.on('data',chunk=>data+=chunk)
            
            op.once('error',reject);
            op.once('end',()=>{
                if (res.statusCode === 400) return reject(new Error(reg.test(data) ? data.match(reg)[1] : data));
				if (res.statusCode !== 200) return reject(new Error(res.statusMessage));
				try {
					resolve(JSON.parse(data));
				} catch (_) {
					reject(new Error(data));
				}
            })
        })
    })

}