server.js

const express = require('express');
const fs = require('fs');
const fetch = require('cross-fetch');
const app = express();

const REDIRECT_URI = process.env.DEVELOPMENT
  ? 'http://localhost:4000'
  : 'https://wowot.cc';
const APPLICATION_ID = fs.readFileSync('.token', 'utf8');

app.use(express.json());
app.get('/#', (req, res) => {
  const realm = req.query.realm;

  res.redirect(
    `https://api.worldoftanks.${realm}/wot/auth/#/?application_id=${APPLICATION_ID}&expires_at=600&redirect_uri=${REDIRECT_URI}/authenticated/`
  );
});

app.get('/logout', async (req, res) => {
  const realm = req.query.realm;
  const accessToken = req.query.access_token;

  await fetch(
    `https://api.worldoftanks.${realm}/wot/auth/logout/?application_id=${APPLICATION_ID}&access_token=${accessToken}`,
    { method: 'POST' }
  );
  res.redirect('/');
});

app.post('/time', async (req, res) => {
  const { accessToken, accountId, realm } = req.body;

  const json = await (
    await fetch(
      `https://api.worldoftanks.${realm}/wot/account/info/?application_id=350d62f4514e16a540067fa3750a3769&account_id=${accountId}&access_token=${accessToken}`
    )
  ).json();

  if (json.status === 'error' && json.error.code === 407) {
    res.status(400).send({ error: true });
    return;
  }

  res.status(200).send(json);
});

app.use('/', express.static('assets'));
app.listen(4000);