T.js

var swaggerDoc = require('./api/swagger.json');

swaggerTools.initializeMiddleware(swaggerDoc, middleware => {
  app.use(middleware.swaggerValidator());
  app.use(middleware.swaggerRouter({
    controllers: './controllers'  // your folder with your middleware endpoints
  }));
  
  http.createServer(app).listen(serverPort, () => {
    console.log('Your server is listening on port %d (http://localhost:%d)', serverPort, serverPort);
  });
});