fink
v1.3.0
Published
Redis keyspace notifier
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Fink
Subscribe to Redis keyspace notifications.
Installation
require('fink')([options]).then(finkAPI => { ... })
Note that you are working with a Promise
.
You will need Redis
>=2.8 installed.
To use keyspace notifications you must enable them in Redis
(for example via redis-cli> config set notify-keyspace-events KEA
). They are not enabled in Redis
by default.
Consult the Redis
documentation.
Options
Options for fink
track those for the redis
module. You are setting options for the Redis
client here.
Testing
npm test
If you have a password on your db, you will need to modify the test suite to accomodate that. Same if Redis
is not @ localhost:6379
.
Usage
fink
returns a Promise
.
let fink = require('fink')(<redis options>)
fink.then(finkApi => {
finkApi.subscribe((keyspace | keyevent), [key || eventName]);
...
finkApi.unsubscribe((keyspace | keyevent), [key || eventName]);
...
finkApi.on('message', (msg) => {
// Given : finkApi.subscribe('keyspace', 'foo')
// On : someRedisClient.set('foo', 1)
// #msg looks like:
//
{ type: 'keyspace',
db: '0',
pattern: '__keyspace@0__:foo',
channel: '__keyspace@0__:foo',
key: 'foo',
event: 'set'
}
}
}
If second argument is not sent to subscribe
subscription will be to all keyspace
or keyevent
events.