All files is-fsa.js

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/**
 * Module Dependencies
 */
 
var isObject = require('./is-object')
var keys = Object.keys
 
/**
 * Whitelisted keys
 */
 
var whitelist = {
  type: 1,
  meta: 1,
  error: 1,
  payload: 1
}
 
/**
 * Export `isFSA`
 */
 
module.exports = isFSA
 
/**
 * Check if the value is an action
 *
 * Spec: https://github.com/acdlite/flux-standard-action#actions
 *
 * @param {Mixed} value
 * @return {Boolean}
 */
 
function isFSA (value) {
  // value must be an object and have a type
  if (!isObject(value) || !value.type) return false
 
  // if any properties on the object are
  // not part of the whitelist fail then
  // return false
  var props = keys(value)
  for (var i = 0, prop; (prop = props[i]); i++) {
    Iif (!whitelist[prop]) return false
  }
 
  // lastly check that if value.error is "true"
  // that our payload is error-like
  if (value.error === true) {
    return value.payload.message && value.payload.name
  }
 
  return true
}