Interface to many worker queue backends.
npm install queOne interface to many queue & worker backends.
``npm install que`
- Gearman (via node-gearman)
`javascript
var Que = require('que');
Que.connect(['gearman://127.0.0.1:4730'], function(){
// all backends connected
});
Que.disconnect(function(){
// all backends disconnected
});
`
`javascript`
var EchoReverseWorker = Que.define({
job: 'echoReverse', // job name
driver: 'gearman', // driver's name
process: function(callback) { // processing function
var result = this.params.message.split('').reverse().join(''); // this.params contains all the data you send, let's just reverse the string
callback(false, { echo: result }); // first argument specifies error(none, in our case), second - response
}
});
`javascript`
EchoReverseWorker.submit({ message: '2pac' }, function(err, response){ // second argument is optional
response.echo == 'cap2'; // true
});
You can define workers using CoffeeScript native class system:
`coffee-script
class EchoReverseWorker extends Que.Worker
job: 'echoReverse'
driver: 'gearman'
process: (callback) ->
result = @params.message.split('').reverse().join('')
callback false, echo: result
EchoReverseWorker = Que.Workers.setup EchoReverseWorker # this is required
`
Your driver should implement this interface:
`coffee-script`
class SomeDriver
@connect: (server, callback) ->
# server is an URI, like protocol://127.0.0.1:1234
# callback should be called when you connect to a backend
@disconnect: (callback) ->
# callback should be called when you disconnect from a backend
@register: (name, handler) ->
# name is the name of the job
# handler is the function which handles the job
@submit: (name, params) ->
# name is the name of the job
# params is the data that should be sent
After that, you should register your driver under chosen name:
`coffee-script`
Que.registerDriver 'someDriver', SomeDriver
Users of your driver will be able to connect to it using URL like someDriver://localhost:port/.
Run all the needed backends and execute mocha` in Terminal.
MIT.