@vslutov/of-type/lib/index.js

Operator ofType for redux-observable, compatible with redux-batch-middleware

'use strict';

Object.defineProperty(exports, '__esModule', { value: true });

var operators = require('rxjs/operators');
var reduxBatchMiddleware = require('redux-batch-middleware');

const keyHasType = (type, key) => {
  return type === key || (typeof key === 'function' && type === key.toString())
};

const keysHasType = (type, keys) => {
  for (let key of keys) {
    if (keyHasType(type, key)) {
      return true
    }
  }
  return false
};

const ofType = (...keys) => (source) => source.pipe(
  operators.mergeMap((action) => {
    if (keysHasType(action.type, keys)) {
      return [action]
    }
    if (action.type === reduxBatchMiddleware.type) {
      return action.payload.filter(subAction => keysHasType(subAction.type, keys))
    }
    return []
  })
);

exports.ofType = ofType;
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