redux-saga-thunk/dist/middleware.js

Dispatching an action handled by redux-saga returns promise

'use strict';

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

var _utils = require('./utils');

var middleware = function middleware() {
  var responses = {};

  return function (next) {
    return function (action) {
      var error = action.error,
          payload = action.payload;

      if ((0, _utils.isThunkAction)(action) && !(0, _utils.isCleanAction)(action)) {
        if (!(0, _utils.hasKey)(action)) {
          var thunk = (0, _utils.generateThunk)(action);
          return new Promise(function (resolve, reject) {
            responses[thunk.key] = function (err, response) {
              return err ? reject(response) : resolve(response);
            };
            next((0, _utils.createThunkAction)(action, thunk));
          });
        }

        var _getThunkMeta = (0, _utils.getThunkMeta)(action),
            key = _getThunkMeta.key;

        if (!responses[key]) {
          throw new Error('[redux-saga-thunk] ' + (0, _utils.getThunkName)(action) + ' should be dispatched before ' + action.type);
        }

        responses[key](error, payload);
        delete responses[key];
        return next((0, _utils.createThunkAction)(action, (0, _utils.generateThunk)(action)));
      }
      return next(action);
    };
  };
};

exports.default = middleware;