An warware: bayyana

Tabbas, bari mu fara!

Express.js ko kuma kawai Express tsarin tsarin aikace-aikacen gidan yanar gizo ne don Node.js, wanda aka fito dashi azaman software mai kyauta kuma mai buɗewa ƙarƙashin lasisin MIT. An tsara shi don gina aikace-aikacen yanar gizo da APIs. Yana da daidaitaccen tsarin uwar garken don Node.js.

Express ba ya ɓoye fasalin fasalin Node.js, amma yana sauƙaƙa shi kuma yana inganta ingantaccen sa. Yana ba da ƙaƙƙarfan tsarin fasali don aikace-aikacen yanar gizo da wayar hannu. Tare da ɗimbin hanyoyin amfani da HTTP da na tsakiya a hannunku, ƙirƙirar API mai ƙarfi yana da sauri da sauƙi.

Bari mu nutse cikin **maganin *** kuma mu tattauna Express daki-daki.

Shigar da Express

Don shigar da Express, za mu yi amfani da Node Package Manager (npm). Gudun umarni mai zuwa a cikin tashar ku don shigar da Express a cikin aikace-aikacenku:

npm install express

Saita Sabar

Yanzu, bari mu saita sabar mai sauƙi a cikin ƙa'idar da ake kira "app.js".

const express = require('express')
const app = express()
const port = 3000

app.get('/', (req, res) => res.send('Hello World!'))

app.listen(port, () => console.log(`Example app listening at http://localhost:${port}`))

A cikin wannan ainihin misalin, mun ƙirƙiri sabar gidan yanar gizo mai sauƙi wanda ke amsawa da "Hello Duniya!" don buƙatun zuwa shafin gida.

Express yana ba da sauƙin ƙirƙira da gudanar da sabar yanar gizo tare da Node.js. Ka lura da yadda muke aika martanin "Hello Duniya!" zuwa browser.

Rarraba a cikin Express

bayar da kwatance shine yadda ƙarshen aikace-aikacen ke amsa buƙatun abokin ciniki. Express yana sarrafa hanyoyin da nagarta sosai.

app.get('/', function (req, res) {
 res.send('Home Page Route')
})

app.get('/about', function (req, res) {
  res.send('About Page Route')
})

app.get('/portfolio', function (req, res) {
  res.send('Portfolio Page Route')
})

app.get('/contact', function (req, res) {
  res.send('Contact Page Route')
})

Ka'idar tana amsawa tare da kirtani don takamaiman hanya, kamar yadda aka nuna a sama.

A ƙarshe, yana da kyau a lura cewa Express ya zama tsarin da ake amfani da shi sosai saboda sauƙi da aikin sa. Hakanan ya haɗa da fasalulluka don kewayawa, hidimar fayil a tsaye, tsaka-tsaki, injunan samfuri, da ƙari. Kayan aiki iri-iri ne don gina APIs kuma yana da babban jeri na tsawo don buƙatu daban-daban. Happy codeing!