It is possible to set cookies in Next.js when using Node.js (Express) as the backend. You can use the cookie-parser
middleware in your Express server to parse and set cookies.
Here's an example code snippet:
// server.js
const express = require('express')
const cookieParser = require('cookie-parser')
const app = express()
app.use(cookieParser())
app.get('/', (req, res) => {
res.cookie('myCookie', 'hello world', { maxAge: 900000, httpOnly: true })
res.send('Cookie set!')
})
module.exports = app
In the above code, we're setting the myCookie
cookie with a value of 'hello world'
. The maxAge
parameter determines how long the cookie will persist (in milliseconds), and the httpOnly
parameter ensures that the cookie can only be accessed via HTTP requests (i.e. not via JavaScript).
Once the cookie is set, you can access it in your Next.js app by using the getInitialProps
method:
// pages/index.js
import fetch from 'isomorphic-unfetch'
const Index = ({ myCookie }) => {
return (
<div>
<p>The value of myCookie is: {myCookie}</p>
</div>
)
}
Index.getInitialProps = async ({ req }) => {
const res = await fetch('http://localhost:3000')
const myCookie = req.headers.cookie.split('=')[1]
return { myCookie }
}
export default Index
In the above component, we're using fetch
to make a request to the Express server and retrieve the myCookie
value from the req.headers.cookie
header. We can then pass this value as a prop to our component.
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Asked: 2022-10-29 11:00:00 +0000
Seen: 17 times
Last updated: Sep 27 '21
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