Express.js read and write image file All In One
Node.js
res.sendFile
res.sendFile(path [, options] [, fn])
res.sendFile()
is supported by Express v4.8.0
onwards.
app.get('/file/:name', function (req, res, next) {
const options = {
root: path.join(__dirname, 'public'),
dotfiles: 'deny',
headers: {
'x-timestamp': Date.now(),
'x-sent': true
}
};
const fileName = req.params.name;
res.sendFile(fileName, options, function (err) {
if (err) {
next(err)
} else {
console.log('Sent:', fileName)
}
});
})
app.get('/user/:uid/photos/:file', function (req, res) {
const uid = req.params.uid;
const file = req.params.file;
// check ❓
req.user.mayViewFilesFrom(uid, function (yes) {
if (yes) {
res.sendFile('/uploads/' + uid + '/' + file)
} else {
res.status(403).send("Sorry! You can't see that.")
}
})
})
https://expressjs.com/en/api.html#res.sendFile
demos
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Tesla price API
https://cyclic-express-server.cyclic.cloud/api/tesla
refs
https://stackoverflow.com/questions/17515699/node-express-sending-image-files-as-api-response
https://stackoverflow.com/questions/77244713/how-to-fetch-file-in-backend-using-nodejs
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