diligent-node-api/src/server.js

const express = require('express')
const app = express()
const path = require('path')
const port = process.env.PORT || 3000
require('./database/mongoose')
const userRouter = require('./routes/user')
const tokenRouter = require('./routes/token')
const swaggerJsDoc = require("swagger-jsdoc")
const swaggerUi = require("swagger-ui-express")
const { errorLogger, errorResponder } = require('./middleware/errorHandling.js')
const cors = require('cors') //Cross-origin resource sharing
const helmet = require('helmet') //Basic protection against attacks like XSS
const config = require('config') //Default configuration file

const swaggerOptions = {
    swaggerDefinition: {
        info: {
            title: 'Diligent node API',
            description: 'Diligent node API documentation'
        }
    },
    apis: ['./server.js', './routes/*.js']
}

const swaggerDocs = swaggerJsDoc(swaggerOptions)
app.use('/api-docs', swaggerUi.serve, swaggerUi.setup(swaggerDocs))

app.use(express.json())
app.use(cors())
app.use(helmet())
app.use(userRouter)
app.use(tokenRouter)

app.get('/', (req, res) => {
    try {
        res.send('Wello Horld!')
    } catch (e) {
        res.status(500).send(e)
    }
})

app.use(errorLogger);
app.use(errorResponder);

app.listen(port, () => {
    console.log('Server is up on port ' + port)
})