Decorator for exception handling in Angular.JS

angularjs-exception-handling.js

/*
 * See http://ways-of-working-in-allatra.readthedocs.io/en/latest/angularjs/README.html
 */

import * as angular from 'angular'

// ------------------------------------------------------------

angular
  .module('app.exception')
  .config([ '$provide', exceptionConfig ])
  .factory('exception', [
    'logger',
    function exception(logger) {
      return new ExceptionLogger(logger)
    }
  ])

// ------------------------------------------------------------

function exceptionConfig($provide) {
  $provide.decorator('$exceptionHandler', [
    '$delegate',
    'toastr',
    ($delegate, toastr) => (exception, cause) => {
      $delegate(exception, cause)

      toastr.error(exception.msg, { exception, cause })
    }
  ]
}

// ------------------------------------------------------------

class ExceptionLogger {
  constructor(logger) {
    this.logger = logger
  }

  catch(message) {
    return reason => logger.error(message, reason)
  }
}