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node-redis-lock-diamond

2.0.0 • Public • Published

node-redis-lock

Node.js redis locking system.

Installation

  $ npm install node-redis-lock

Use

const Lock = require('node-redis-lock');
const redis = require('redis');
const client = redis.createClient();
 
// Instantiate a lock.
let lock = new Lock({namespace: 'locking'}, client);
 
// Acquire a lock.
const key = 'job1';
const value = ['owned-by-',require('os').hostname()].join('');
const ttl = 1; // seconds
lock.acquire(key, ttl, value, (e, r) => {
  // r === true;
});
 
// Renew a lock.
// It fails if the value is different.
lock.renew(key, ttl, value, (e, r) => {
  // r === true;
});
 
// Release a lock.
//  The value has to be passed to ensure another host doesn't release it.
lock.release(key, value, (e, r) => {
  //
});
 
// Does a lock exist?
lock.isLocked(key, (e, r) => {
  // Lock if r exists (this is the value of the lock)
});

Tests

  $ npm test

Author

Philmod <philippe.modard@gmail.com>

install

npm i node-redis-lock-diamond

Downloadsweekly downloads

3

version

2.0.0

license

BSD-2-Clause

homepage

github.com

repository

Gitgithub

last publish

collaborators

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