ایجاد ExpressJS خود را از ابتدا (قسمت 2) – Middlewares و Controllers

// (1)
const dispatchChain = (request, response, middlewares) => {
    return invokeMiddlewares(request, response, middlewares)
}

// (2)
const invokeMiddlewares = async (request, response, middlewares) => {

    if (!middlewares.length) return;

    const currentMiddleware = middlewares[0];

    return currentMiddleware(request, response, async () => {
            await invokeMiddlewares(request, response, middlewares.slice(1));
    })
}
// (3) 
const serverHandler = async (request, response) => {
    const sanitizedUrl = sanitizeUrl(request.url, request.method)

    const match = matchUrl(sanitizedUrl)

    if (match) {
            const middlewaresAndControllers = routes.get(match)
            await dispatchChain(request, response, [...middlewaresAndControllers])
    } else {
            response.statusCode = 404
            response.end('Not found')
    }
}

const App = require('./src/app')

const app = App()


app.get('/test/test2', function test() { }, function test2() { })
app.post('/test', (req, res) => console.log('test'))
app.patch('/test', (req, res) => console.log('test'))
app.put('/test', (req, res) => console.log('test'))
app.del('/test', (req, res) => console.log('test'))

// (1)
const mid1 = (req, res, next) => {
    console.log('mid1')
    next()
}
// (2)
const mid2 = (req, res, next) => {
    console.log('mid2')
    next()
}
// (3)
const controller = (req, res) => {
    console.log('controller')
    res.end('controller')
}
// (4)
app.get('/middleware', mid1, mid2, controller)



const start = async () => {
    app.run(3000)
}

start()