Creates a RECEIVE_DEVICE_LIST action. This action is dispatched by the MIDI enhancer at initialization, when devices are connected/disconnected and when devices change state.

Creates a SET_LISTENING_DEVICES action. Dispatch this action with the ids of MIDI input devices you would like to receive messages from.

Creates a RECEIVE_MIDI_MESSAGE action. This action is dispatched by the MIDI enhancer when a message received from a device you're listening to.

Creates a SEND_MIDI_MESSAGE action. Dispatch this action to send a MIDI message to a specified device.

Reduces MIDI I/O and device discovery actions to state changes. Maintains state in two keys: devices (an array of device objects straight from the underlying Web MIDI API) and listeningDevices (an array of device IDs being listened to).

import { createStore, applyMiddleware, combineReducers } from 'redux';
import setup, { reducer } from 'redux-midi';
const {inputMiddleware, outputMiddleware} = setup();
const store = createStore(combineReducers({midi: reducer}), initialState, applyMiddleware(inputMiddleware, outputMiddleware));

Create a pair of Redux middleware functions wrapping MIDI I/O and device discovery. The input middleware dispatches RECEIVE_DEVICE_LIST whenever the list of MIDI devices changes and RECEIVE_MIDI_MESSAGE when MIDI messages are received on devices that are being listened to. The output middleware sends MIDI messages to output devices as a side effect of SEND_MIDI_MESSAGE actions.

import { createStore, applyMiddleware, combineReducers } from 'redux';
import setup, { reducer } from 'redux-midi';
const {inputMiddleware, outputMiddleware} = setup();
const store = createStore(combineReducers({midi: reducer}), initialState, applyMiddleware(inputMiddleware, outputMiddleware));