Package Exports

level-trigger

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (level-trigger) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

level-trigger

Triggers for levelup.

Jobs must be idempotent! If the process crashes before job has calledback, it will be rerun the next time it's started, for consistency!

Stability

Unstable: Expect patches and features, possible api changes.

Example

var db       = require('levelup')('/tmp/level-trigger-example')
var SubLevel = require('level-sublevel'); SubLevel(db) //MUST install sublevel.
var Trigger  = require('level-trigger')

var trigDb = Trigger(db, 'example', function (ch) {
    //optionally index the job with a different key.
    //if there are two jobs with the same key,
    //it will only be triggered once.
    return ch.key
  },
  function (value, done) { 
    //call done when job is done.
    done()
  }
})

//if you want, start the trigger in batch mode.
//this will process all the keys in the input db.

//otherwise, jobs will be processed whenever a key is inserted!

if(require('optimist').argv.batch)
  trigDb.start()

License

MIT