agenda/lib/job/priority.js

Light weight job scheduler for Node.js

'use strict';

/**
 * Internal method to turn priority into a number
 * @param {String|Number} priority string to parse into number
 * @returns {Number} priority that was parsed
 */
const parsePriority = priority => {
  const priorityMap = {
    lowest: -20,
    low: -10,
    normal: 0,
    high: 10,
    highest: 20
  };
  if (typeof priority === 'number' || priority instanceof Number) {
    return priority;
  }
  return priorityMap[priority];
};

/**
 * Sets priority of the job
 * @param {String} priority priority of when job should be queued
 * @returns {exports} instance of Job
 */
module.exports = function(priority) {
  this.attrs.priority = parsePriority(priority);
  return this;
};