methodMiddleware.js

/**
 * A redux middleware for processing Meteor methods
 * When an action is dispatched, it will pass through our middleware. 
 * if denoted a method, we will dispatch the action with readyState of loading
 * The method passed in is then called, and dispatches further ready states for success/error
 * The reducer shape should include { data, readyState } for use in the UI
 * @returns {Function}
 */
export default function methodMiddleware() {
  return (next) => {
    return (action) => {
      const { method, ...rest } = action;
      if (!method) {
        return next(action);
      }
      next({ ...rest, readyState: 'loading' });
      return method((error, result) => {
        if (error) {
          Errors.handler(error);
          return next({ error: error.reason, readyState: 'error', ...rest });
        }
        return next({ data: result, readyState: 'success', ...rest});
      });
    };
  };
}


// implementation
Store.dispatch({
  type: "SOMETIHNG",
  method: function (cb) {
    return Meteor.call('something', cb);
  }
})