swagger-theme/utils.js

Convert any API Specification into an awesome HTML documentation website

const https = require("https");
const fs = require('fs');

const throwError = (msg = 'Something went wrong!!!') => {
  throw msg;
  process.exit(0);
};

const getFile = (url) => new Promise((resolve, reject) => {
  try {
    const content = fs.readFileSync(url, 'utf8');
    return resolve(JSON.parse(content));
  } catch {
    resolve({});
  };
});

const getApiHtml = (body) => new Promise((resolve, reject) => {
  try {
    const req  = https.request({
      hostname: 'swagger-theme.herokuapp.com',
      port: 443,
      path: '/return-html',
      method: 'POST',
      headers: {
        'Content-Type': 'application/json',
      }
    },
    (res) => {
      var result = '';
      res.on('data', chunk => result += chunk);
      res.on('end', () => {
        try {
          const res = JSON.parse(result);
          const {error, html} = res;
          
          if (error) {
            return throwError();
          }

          resolve(html);
        } catch (e) {
          return throwError();
        }
      });
    });

    req.on('error', (e) => {
      return throwError();
    });

    req.write(body);
    req.end();
  } catch (e) {
    return throwError();
  }
});

module.exports = {
  getApiHtml,
  getFile,
  throwError,
};