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alt-session
Advanced tools
This module provides your apps with asynchronous Session API with data stored in Redis.
The asynchronous approach allows you to access session data on-demand, instead of saving-restoring it on every request regardless of whether data is actually being used or not. It is also super-friendly to asynchronous control flow libraries (like async).
npm install alt-session
Add middleware after cookie parser:
app.use(require('alt-session', {
redis: {
host: 'localhost',
port: 6390,
auth_pass: 'optional'
},
session: {
dbIndex: 0, // for selecting Redis database
tti: 300, // time to idle before session is removed from Redis, in seconds
prefix: 'sess', // custom key prefix for Redis storage
secure: true, // for setting cookie.secure option
domain: 'optional' // for custom cookie domain
}
}));
Store session data:
req.session.set('myKey', 'myValue', function(err) {
if (err)
return next(err);
// Success
});
Retrieve single key:
req.session.get('myKey', function(err, myValue) {
if (err)
return next(err);
// Success
});
Retrieve multiple keys:
req.session.mget(['myKey1', 'myKey2'], function(err, session) {
if (err)
return next(err);
// Success
// session.myKey1
// session.myKey2
});
Remove single value:
req.session.remove('myKey', function(err) {
if (err)
return next(err);
// Success
});
Remove all values:
req.session.remove(['myKey1', 'myKey2'], function(err) {
if (err)
return next(err);
// Success
});
Invalidate (clear):
req.session.invalidate(function(err) {
if (err)
return next(err);
// Success
});
Asynchronous Session API is generally incompatible with synchronous version.
If your library depends on certain keys being available in req.session
, you might want to add simple middleware like this:
// Retrieve stuff
app.use(function(req, res, next) {
req.session.get('myKey', function(value) {
req.session.myKey = value;
next();
});
});
// Include your other middleware and routes
// Persist stuff
app.use(function(req, res, next) {
req.session.set('myKey', req.session.myKey, next);
});
FAQs
Alternative API for Express sessions (backed by Redis)
We found that alt-session demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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