server.js

const express = require('express')
const app = express()
const netApi = require('./proxy.js')
const port = process.env.PORT || 8080
const cors = require('cors')
const axios = require('axios')
const atob = require('atob')

app.use(cors())
app.use(netApi({ allowOrigin: '*' }))

app.use('/proxyCheck', (req, res, next) => {
  res.send('OK')
})

app.get('/getId', (req, res, next) => {
  axios.get(`https://api.mojang.com/users/profiles/minecraft/${req.query.nick}`, { responseType: 'json' })
    .then(function (response) {
      if (response.status === 204) {
        res.send('ERR')
      } else {
        res.send(response.data.id)
      }
    })
    .catch(function () {
      res.send('ERR')
    })
})

app.get('/getSkin', (req, res, next) => {
  axios.get(`https://sessionserver.mojang.com/session/minecraft/profile/${req.query.id}?legacy=true`, { responseType: 'json' })
    .then(function (response) {
      const url = JSON.parse(atob(response.data.properties[0].value)).textures.SKIN.url
      axios.get(url, { responseType: 'arraybuffer' })
        .then(function (response) {
          const headers = { 'Content-Type': 'image/jpeg' }
          res.writeHead(200, headers)
          res.end(response.data, 'binary')
        })
        .catch(function () {
          res.send('ERR')
        })
    })
    .catch(function () {
      res.send('ERR')
    })
})

app.listen(port, () => {
  console.log(`Server is running on \x1b[34m*:${port}\x1b[0m`)
})

module.exports = { app, port }