Example of handling React Native's AsyncStorage with Redux actions.

async-redux.js

import { AsyncStorage } from 'react-native';

export const actionMethod = () => {
    return (dispatch, getState) => {        
        (async () => {
            try {
                const value = await AsyncStorage.setItem('@YourStore:key', '12345');

                if (value !== null) {
                    // Value of the stored token
                } else {
                    // Dispatch an error code, something has gone wrong with the AsyncStorage
                    dispatch(anotherAction());
                }
            } catch (error) {
                dispatch(throwError('Whoops, there has been an error.'));
            }
        })();
    };
}