const http = require('http');
const data = JSON.stringify({value: 60});
const options = {
  hostname: 'localhost',
  port: 7000,
  path: '/api/registry/4202/write',
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Content-Length': Buffer.byteLength(data)
  }
};

const req = http.request(options, (res) => {
  console.log('STATUS', res.statusCode);
  res.setEncoding('utf8');
  res.on('data', (chunk) => console.log('BODY', chunk));
  res.on('end', () => {
    // fetch registries
    http.get('http://localhost:7000/api/registries', (res2) => {
      console.log('REG STATUS', res2.statusCode);
      let body = '';
      res2.setEncoding('utf8');
      res2.on('data', c => body += c);
      res2.on('end', () => console.log('REG BODY', body));
    });
  });
});
req.on('error', (e) => console.error('REQ ERR', e));
req.write(data);
req.end();