Lokacin gina aikace-aikacen yanar gizo, sarrafa bayanan shigar da mai amfani abu ne mai mahimmanci don ƙirƙirar fasali masu ma'amala da sassauƙa. A cikin Express.js yanayin haɓakawa, zaku iya sarrafa bayanan shigarwa cikin sauƙi daga fom da buƙatun HTTP daban-daban kamar GET, POST, PUT, PATCH, da DELETE. Anan ga cikakken jagora tare da hanyoyi da misalai da yawa don taimaka muku cimma wannan:
Karbar Bayani daga Form
Ƙirƙirar HTML Form: Fara da ƙirƙirar HTML form a cikin Pug ko fayil EJS. Tabbatar cewa kun saita action
sifa a cikin <form>
alamar don tantance hanyar da za a aika buƙatar.
<form action="/process" method="post">
<input type="text" name="username" placeholder="Username">
<input type="password" name="password" placeholder="Password">
<button type="submit">Submit</button>
</form>
Buƙatar Gudanarwa POST: A cikin mai sarrafa hanya, yi amfani da body-parser
tsakiyar kayan aiki don cire bayanai daga POST buƙatar.
const bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: true }));
app.post('/process',(req, res) => {
const username = req.body.username;
const password = req.body.password;
// Process data and return results
});
Gudanar da Nau'o'in Buƙatun Daban-daban tare da Misalin Shiga
Aika POST Buƙatun daga Login Form: A cikin HTML form, tabbatar da cewa kun saita post
hanya da action
sifa don ƙayyade hanyar da POST za a aika buƙatar.
<form action="/login" method="post">
<input type="text" name="username" placeholder="Username">
<input type="password" name="password" placeholder="Password">
<button type="submit">Login</button>
</form>
Buƙatar Buƙatar POST Shiga: A cikin mai sarrafa hanya, yi amfani da body-parser
matsakaicin kayan aiki don cire bayanai daga POST buƙatun da aiwatar da aikin shiga.
const bodyParser = require('body-parser');
app.use(bodyParser.urlencoded({ extended: true }));
app.post('/login',(req, res) => {
const username = req.body.username;
const password = req.body.password;
// Check login information
if(username === 'admin' && password === '123') {
res.send('Login successful!');
} else {
res.send('Login failed!');
}
});
Gudanarwa PUT da DELETE Buƙatun
Buƙatun PUT Karɓa: Don sarrafa PUT buƙatun, zaku iya amfani da hanya da tsaka-tsaki don cire bayanai daga buƙatun da aiwatar da sabuntawa daidai.
app.put('/update/:id',(req, res) => {
const id = req.params.id;
const updatedData = req.body;
// Perform data update with corresponding ID
});
Buƙatun Karɓa DELETE: Don karɓar DELETE buƙatun, kuma yi amfani da hanya da kayan tsakiya don gano ID da yin gogewa.
app.delete('/delete/:id',(req, res) => {
const id = req.params.id;
// Perform data deletion with corresponding ID
});
Kammalawa
Fahimtar yadda ake sarrafa bayanan shigar da mai amfani da buƙatun HTTP daban-daban yana da mahimmanci a ci gaban yanar gizo. Ta amfani Express.js da na tsakiya kamar body-parser
, zaku iya aiwatar da shigarwa cikin sauƙi daga fom da sarrafa buƙatun HTTP daban-daban gami da GET, POST, PUT, PATCH, da DELETE. Wannan yana ba ku damar ƙirƙirar fasali masu ma'amala da sassauƙa akan gidan yanar gizon ku.