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Mini Shell
Mini Shell
'use strict'
const url = require('url')
const ProxyAgent = require('proxy-agent')
/**
* HTTP wrapper
*/
module.exports = class HTTPClient {
/**
* Return native module (HTTP/HTTPS)
* @param {String} url
*/
static getModule (url) {
return url.indexOf('https://') === 0 ? require('https') : require('http')
}
/**
* Send an HTTP request and return data or error if status > 200
* @param {Object} opts
* @param {String} opts.url
* @param {String} opts.method
* @param {Object} [opts.data]
* @param {Object} [opts.headers]
* @param {Function} cb invoked with <err, body>
*/
static open (opts, cb) {
const http = this.getModule(opts.url)
const parsedUrl = url.parse(opts.url)
let data = null
const options = {
hostname: parsedUrl.hostname,
path: parsedUrl.path,
port: parsedUrl.port,
method: opts.method,
agent: opts.proxy !== undefined ? new ProxyAgent(opts.proxy) : undefined,
headers: opts.headers
}
if (opts.data) {
data = JSON.stringify(opts.data)
options.headers['Content-Type'] = 'application/json'
options.headers['Content-Length'] = data.length
}
const req = http.request(options, (res) => {
let body = ''
res.setEncoding('utf8')
res.on('data', (chunk) => {
body += chunk.toString()
})
res.on('end', () => {
let json = null
try {
json = JSON.parse(body)
} catch (e) {
return cb(e)
}
return cb(null, json)
})
})
req.on('error', cb)
if (data) {
req.write(data)
}
req.end()
}
}
Zerion Mini Shell 1.0