index.js

const Swagger = require('swagger-client');
const deasync = require('deasync');


const cachedClients = {};


function generateClient(options) {
  const client = new Swagger(options);
  
  while (!(client instanceof Swagger) && client.inspect().state === 'pending') {
    deasync.sleep(1);
  }

  return client.valueOf();
}

/**
 * Create a swagger-client synchronously.
 *
 * @param {String|Object} options URL to swagger specification or object with options that will be passed to swagger-client constructor.
 * @param {Boolean=} ignoreCache Created new swagger-client and don't cache it (default: false).
 */
function returnClient(options, ignoreCache) {
  if (typeof options === 'string') {
    options = {
      url: options,
      usePromise: true
    };
  }

  if (ignoreCache === true) {
    return generateClient(options);
  }

  const optionsJSON = JSON.stringify(options);
  if (cachedClients[optionsJSON] instanceof Swagger) {
    return cachedClients[optionsJSON];
  } else {
    cachedClients[optionsJSON] = generateClient(options);
    return cachedClients[optionsJSON];
  }
}


module.exports = returnClient;