integrate_swagger-ui-express.js

const express = require('express'); 
const swaggerUI = require('swagger-ui-express'); 
const YAML = require('yamljs'); 
const swaggerDocument = YAML.load('./api/swagger/swagger.yaml'); 
let app = express(); 
// Mount the SwaggerUI Middleware, at your preferred mount path 
let swaggerOptions = { explorer: false }; 
app.use('/api/v1/docs', 
       swaggerUI.serve, 
       swaggerUI.setup(swaggerDocument, swaggerOptions) 
);