diff --git a/.eslintrc.json b/.eslintrc.json
new file mode 100644
index 0000000..46bc5fc
--- /dev/null
+++ b/.eslintrc.json
@@ -0,0 +1,6 @@
+{
+  "extends": "airbnb",
+  "rules": {
+    "func-names": ["error", "never"]
+  }
+}
\ No newline at end of file
diff --git a/example/peripheral/src/index.js b/example/peripheral/src/index.js
index 6aa9b37..646ccf2 100644
--- a/example/peripheral/src/index.js
+++ b/example/peripheral/src/index.js
@@ -1,8 +1,8 @@
 import { createStore } from 'redux';
-import { startPeripheral }  from 'redux-bluetooth/build/peripheral';
+import startPeripheral from 'redux-bluetooth/build/peripheral';
 
 import reducer from './reducer';
 
-let store = createStore(reducer);
+const store = createStore(reducer);
 
-startPeripheral('Counter', store);
\ No newline at end of file
+startPeripheral('Counter', store);
diff --git a/example/peripheral/src/reducer.js b/example/peripheral/src/reducer.js
index e9fce73..b0b8952 100644
--- a/example/peripheral/src/reducer.js
+++ b/example/peripheral/src/reducer.js
@@ -1,13 +1,13 @@
 export default function counter(state = 0, { type }) {
   console.log('Counter: ---------------------------');
-  console.log(type)
-  console.log(state)
+  console.log(type);
+  console.log(state);
   switch (type) {
-  case 'INCREMENT':
-    return state + 1
-  case 'DECREMENT':
-    return state - 1
-  default:
-    return state
+    case 'INCREMENT':
+      return state + 1;
+    case 'DECREMENT':
+      return state - 1;
+    default:
+      return state;
   }
-}
\ No newline at end of file
+}
diff --git a/example/webapp/src/actions/index.js b/example/webapp/src/actions/index.js
index f2b627d..ccc657e 100644
--- a/example/webapp/src/actions/index.js
+++ b/example/webapp/src/actions/index.js
@@ -4,6 +4,6 @@ export function increment() {
   return { type: TYPES.INCREMENT };
 }
 
-export function decrement() { 
+export function decrement() {
   return { type: TYPES.DECREMENT };
 }
diff --git a/example/webapp/src/actions/types.js b/example/webapp/src/actions/types.js
index abba9db..930d9ef 100644
--- a/example/webapp/src/actions/types.js
+++ b/example/webapp/src/actions/types.js
@@ -1,2 +1,2 @@
 export const INCREMENT = 'INCREMENT';
-export const DECREMENT = 'DECREMENT';
\ No newline at end of file
+export const DECREMENT = 'DECREMENT';
diff --git a/example/webapp/src/app/component.js b/example/webapp/src/app/component.jsx
similarity index 51%
rename from example/webapp/src/app/component.js
rename to example/webapp/src/app/component.jsx
index a7cc263..4faff3f 100644
--- a/example/webapp/src/app/component.js
+++ b/example/webapp/src/app/component.jsx
@@ -3,47 +3,47 @@ import PropTypes from 'prop-types';
 
 import './style.css';
 
-export default class App extends PureComponent { 
-  constructor(props) { 
+export default class App extends PureComponent {
+  constructor(props) {
     super(props);
 
     this.handlerConnect = this.handlerConnect.bind(this);
   }
 
-  handlerConnect(){
+  handlerConnect() {
     const { onConnect } = this.props;
     onConnect('Counter');
   }
 
-  render() { 
-    const { 
-      store, status,
-      onIncrement, onDecrement
-    } = this.props;
+  render() {
+    const { store, status, onIncrement, onDecrement } = this.props;
 
     return (
       <div className="app">
-        
-        { (status === 'CONNECTED') && 
-          <div className="app-counter">{store}</div>
-        }
-        <div className="app-actions"> 
-          { (status !== 'CONNECTED') && 
-            <button className="app-actions__buton" onClick={this.handlerConnect}>Connect</button>
-          }
-          { (status === 'CONNECTED') && 
-            <button className="app-actions__buton" onClick={onIncrement}>+</button>
-          }
-          { (status === 'CONNECTED') && 
-            <button className="app-actions__buton" onClick={onDecrement}>-</button>
-          }
+        {status === 'CONNECTED' &&
+          <div className="app-counter">
+            {store}
+          </div>}
+        <div className="app-actions">
+          {status !== 'CONNECTED' &&
+            <button className="app-actions__buton" onClick={this.handlerConnect}>
+              Connect
+            </button>}
+          {status === 'CONNECTED' &&
+            <button className="app-actions__buton" onClick={onIncrement}>
+              +
+            </button>}
+          {status === 'CONNECTED' &&
+            <button className="app-actions__buton" onClick={onDecrement}>
+              -
+            </button>}
         </div>
       </div>
     );
   }
-};
+}
 
-App.propTypes = { 
+App.propTypes = {
   store: PropTypes.number,
   status: PropTypes.string,
   onConnect: PropTypes.func,
@@ -51,8 +51,10 @@ App.propTypes = {
   onDecrement: PropTypes.func,
 };
 
-App.defaultProps = { 
+App.defaultProps = {
+  store: 0,
+  status: '',
   onConnect: () => true,
   onIncrement: () => true,
-  onDecrement: () => true,  
+  onDecrement: () => true,
 };
diff --git a/example/webapp/src/app/index.js b/example/webapp/src/app/index.js
index e4521af..c93cc0b 100644
--- a/example/webapp/src/app/index.js
+++ b/example/webapp/src/app/index.js
@@ -5,9 +5,7 @@ import { increment, decrement } from '../actions';
 
 import Component from './component';
 
-const mapState = (state) => {
-  return state;
-}
+const mapState = state => state;
 
 const mapAction = {
   onConnect: actions.connectStore,
diff --git a/example/webapp/src/index.js b/example/webapp/src/index.js
index c45942d..b005c9e 100644
--- a/example/webapp/src/index.js
+++ b/example/webapp/src/index.js
@@ -1,3 +1,4 @@
+/* global document */
 import React from 'react';
 import { render } from 'react-dom';
 import { Provider } from 'react-redux';
@@ -11,11 +12,12 @@ import App from './app';
 
 const ACTIONS = Object.keys(TYPES);
 
+/* eslint-disable react/jsx-filename-extension */
 const store = createSyncStore(ACTIONS);
 render(
   <Provider store={store}>
     <App />
-  </Provider>, 
-  document.getElementById('root')
+  </Provider>,
+  document.getElementById('root'),
 );
-
+/* eslint-enable */
diff --git a/package.json b/package.json
index 6057e64..524f422 100644
--- a/package.json
+++ b/package.json
@@ -5,6 +5,8 @@
   "main": "build/index.js",
   "scripts": {
     "dev": "watch 'npm run build' src",
+    "eslint": "eslint src",
+    "prebuild": "npm run eslint",
     "build": "babel src -d build",
     "test": "jest",
     "test:watch": "npm test -- --watch",
@@ -39,12 +41,19 @@
   "devDependencies": {
     "babel-cli": "^6.24.1",
     "babel-preset-latest": "^6.24.1",
+    "eslint": "^3.19.0",
+    "eslint-config-airbnb": "^15.0.2",
+    "eslint-plugin-import": "^2.7.0",
+    "eslint-plugin-jsx-a11y": "^5.1.1",
+    "eslint-plugin-react": "^7.1.0",
     "jest": "^20.0.4",
     "np": "^2.16.0",
     "watch": "^1.0.2"
   },
   "dependencies": {
     "bleno": "^0.4.2",
+    "redux": "^3.7.1",
+    "redux-thunk": "^2.2.0",
     "text-encoding": "^0.6.4"
   }
 }
diff --git a/src/common/config/index.js b/src/common/config/index.js
index 7c07765..28a8af2 100644
--- a/src/common/config/index.js
+++ b/src/common/config/index.js
@@ -1,11 +1,11 @@
-const CONFIG = { 
+const CONFIG = {
   SERVICE_UUID: '13333333-3333-3333-3333-333333333337',
-  CHARACTERISTIC_UUID: '13333333-3333-3333-3333-333333330001' 
+  CHARACTERISTIC_UUID: '13333333-3333-3333-3333-333333330001',
 };
 
 export const CENTRAL_CONFIG = CONFIG;
 export const BLENO_CONFIG = {
   SERVICE_UUID: CONFIG.SERVICE_UUID.replace(/-/g, ''),
   CHARACTERISTIC_UUID: CONFIG.CHARACTERISTIC_UUID.replace(/-/g, ''),
-  DESCRIPTOR_UUID: '2901'
-};
\ No newline at end of file
+  DESCRIPTOR_UUID: '2901',
+};
diff --git a/src/common/encoder/index.js b/src/common/encoder/index.js
index fb755d2..515d435 100644
--- a/src/common/encoder/index.js
+++ b/src/common/encoder/index.js
@@ -1,17 +1,17 @@
-export default function Encoder({ TextEncoder, TextDecoder}) { 
+export default function Encoder({ TextEncoder, TextDecoder }) {
   const encoder = new TextEncoder('utf-8');
   const decoder = new TextDecoder('utf-8');
 
-  const encode = (json) => { 
+  const encode = (json) => {
     const string = JSON.stringify(json);
     return encoder.encode(string);
-  }
+  };
 
-  const decode = (data) => { 
+  const decode = (data) => {
     const string = decoder.decode(data);
     const json = JSON.parse(string);
     return typeof json === 'string' ? JSON.parse(json) : json;
-  }
+  };
 
   return { encode, decode };
-}
\ No newline at end of file
+}
diff --git a/src/common/encoder/index.test.js b/src/common/encoder/index.test.js
index 4e1d619..623c1c0 100644
--- a/src/common/encoder/index.test.js
+++ b/src/common/encoder/index.test.js
@@ -1,10 +1,11 @@
+/* global test, expect */
 import TextEncoding from 'text-encoding';
 
 import Encoder from '.';
 
-const { encode , decode } = new Encoder(TextEncoding);
+const { encode, decode } = new Encoder(TextEncoding);
 
-test('encode / decode', () => { 
+test('encode / decode', () => {
   const data = encode({ type: 'TEST', payload: 'PAYLOAD' });
   const result = decode(data);
 
diff --git a/src/index.js b/src/index.js
index f96c22a..134b132 100644
--- a/src/index.js
+++ b/src/index.js
@@ -1,4 +1,4 @@
-import * as peripheral from './peripheral';
+import peripheral from './peripheral';
 import * as webapp from './webapp';
 
 export default { peripheral, webapp };
diff --git a/src/peripheral/bleno/characteristic.js b/src/peripheral/bleno/characteristic.js
index 9eab932..03544a3 100644
--- a/src/peripheral/bleno/characteristic.js
+++ b/src/peripheral/bleno/characteristic.js
@@ -1,15 +1,9 @@
-export default function Characteristic( 
-  uuid,
-  Parent,
-  util,
-  descriptor,
-  { encode, decode } ) {
-
+export default function Characteristic(uuid, Parent, util, descriptor, { encode, decode }) {
   function ReduxCharacteristic() {
     Parent.call(this, {
       uuid,
       properties: ['read', 'write', 'notify'],
-      descriptors: [ descriptor ]
+      descriptors: [descriptor],
     });
 
     this.store = null;
@@ -17,51 +11,52 @@ export default function Characteristic(
 
   util.inherits(ReduxCharacteristic, Parent);
 
-  ReduxCharacteristic.prototype.connect = function(store) { 
+  ReduxCharacteristic.prototype.connect = function (store) {
     this.store = store;
-    this.store.subscribe(() => { 
-      if ( this.updateValueCallback && this.store ) { 
+    this.store.subscribe(() => {
+      if (this.updateValueCallback && this.store) {
         const state = this.store.getState();
         this.updateValueCallback(encode(state));
-      }        
+      }
     });
-  }
+  };
 
-  ReduxCharacteristic.prototype.disconnect = function() { 
+  ReduxCharacteristic.prototype.disconnect = function () {
     this.store = null;
-  }
+  };
 
-  ReduxCharacteristic.prototype.onWriteRequest = function(data, offset, withoutResponse, callback) {
+  ReduxCharacteristic.prototype.onWriteRequest =
+  function (data, offset, withoutResponse, callback) {
     if (offset) {
       callback(this.RESULT_ATTR_NOT_LONG);
       return;
     }
 
-    this.store && this.store.dispatch(decode(data));
+    if (this.store) this.store.dispatch(decode(data));
 
     callback(this.RESULT_SUCCESS);
   };
 
-  ReduxCharacteristic.prototype.onReadRequest = function(offset, callback) {
+  ReduxCharacteristic.prototype.onReadRequest = function (offset, callback) {
     if (offset) {
       callback(this.RESULT_ATTR_NOT_LONG, null);
       return;
     }
 
-    if ( !this.store ) { 
+    if (!this.store) {
       callback(this.RESULT_SUCCESS, null);
       return;
     }
     callback(this.RESULT_SUCCESS, encode(this.store.getState()));
   };
 
-  ReduxCharacteristic.prototype.onSubscribe = function(maxValueSize, updateValueCallback) { 
+  ReduxCharacteristic.prototype.onSubscribe = function (maxValueSize, updateValueCallback) {
     this.updateValueCallback = updateValueCallback;
-  }
+  };
 
-  ReduxCharacteristic.prototype.onUnsubscribe = function() { 
+  ReduxCharacteristic.prototype.onUnsubscribe = function () {
     this.updateValueCallback = null;
-  }
+  };
 
   return new ReduxCharacteristic();
-}
\ No newline at end of file
+}
diff --git a/src/peripheral/bleno/index.js b/src/peripheral/bleno/index.js
index af7753f..79795bd 100644
--- a/src/peripheral/bleno/index.js
+++ b/src/peripheral/bleno/index.js
@@ -1,5 +1,5 @@
 import util from 'util';
-import bleno from 'bleno';
+import BLENO from 'bleno';
 import TextEncoding from 'text-encoding';
 
 import { BLENO_CONFIG } from '../../common/config';
@@ -7,36 +7,26 @@ import Encoder from '../../common/encoder';
 
 import Service from './service';
 import Characteristic from './characteristic';
-import Descriptor from './Descriptor';
+import Descriptor from './descriptor';
 
-export function Bleno(
-  bleno, 
-  encoder, 
-  { SERVICE_UUID, CHARACTERISTIC_UUID, DESCRIPTOR_UUID }) { 
+export function Bleno(bleno, encoder, { SERVICE_UUID, CHARACTERISTIC_UUID, DESCRIPTOR_UUID }) {
+  const descriptor = Descriptor(DESCRIPTOR_UUID, bleno.Descriptor);
 
-  const descriptor = Descriptor(
-    DESCRIPTOR_UUID,
-    bleno.Descriptor
-  );
-
-  const characteristic = Characteristic( 
-    CHARACTERISTIC_UUID, 
+  const characteristic = Characteristic(
+    CHARACTERISTIC_UUID,
     bleno.Characteristic,
     util,
     descriptor,
-    encoder);
+    encoder,
+  );
 
-  const service = Service(
-    SERVICE_UUID,
-    bleno.PrimaryService,
-    util,
-    characteristic);
+  const service = Service(SERVICE_UUID, bleno.PrimaryService, util, characteristic);
 
   const start = (name, store) => {
-    bleno.on('stateChange', function(state) {
+    bleno.on('stateChange', (state) => {
       if (state === 'poweredOn') {
-        bleno.startAdvertising(name, [SERVICE_UUID], function(err) {
-          err && console.log('startAdvertising.err: ', err);
+        bleno.startAdvertising(name, [SERVICE_UUID], (err) => {
+          if (err) console.log('startAdvertising.err: ', err);
         });
       } else {
         bleno.stopAdvertising();
@@ -44,19 +34,15 @@ export function Bleno(
       }
     });
 
-    bleno.on('advertisingStart', function(err) {
+    bleno.on('advertisingStart', (err) => {
       if (!err) {
-        bleno.setServices([ service ]);
+        bleno.setServices([service]);
         characteristic.connect(store);
       }
-    });    
-  }
+    });
+  };
 
   return { start };
 }
 
-export default new Bleno(
-  bleno, 
-  Encoder(TextEncoding), 
-  BLENO_CONFIG
-);
\ No newline at end of file
+export default new Bleno(BLENO, Encoder(TextEncoding), BLENO_CONFIG);
diff --git a/src/peripheral/bleno/service.js b/src/peripheral/bleno/service.js
index 1b95a67..eca1c27 100644
--- a/src/peripheral/bleno/service.js
+++ b/src/peripheral/bleno/service.js
@@ -1,12 +1,7 @@
-export default function Service(
-  uuid,
-  Parent,
-  util,
-  characteristic) {
-
+export default function Service(uuid, Parent, util, characteristic) {
   function ReduxService() {
-    Parent.call(this, { 
-      uuid, 
+    Parent.call(this, {
+      uuid,
       characteristics: [characteristic],
     });
   }
diff --git a/src/peripheral/index.js b/src/peripheral/index.js
index 7840402..97c4eae 100644
--- a/src/peripheral/index.js
+++ b/src/peripheral/index.js
@@ -1,3 +1,3 @@
 import bleno from './bleno';
 
-export const startPeripheral = (name, store) => bleno.start(name, store);
+export default (name, store) => bleno.start(name, store);
diff --git a/src/webapp/actions/actions.js b/src/webapp/actions/actions.js
index bd5631e..9491ec5 100644
--- a/src/webapp/actions/actions.js
+++ b/src/webapp/actions/actions.js
@@ -1,31 +1,26 @@
-export default function Actions(central, TYPES) { 
-
-  const syncState = (state) => ({ 
-    type: TYPES.BLUETOOTH_SYNC, 
-    payload: state 
+export default function Actions(central, TYPES) {
+  const syncState = state => ({
+    type: TYPES.BLUETOOTH_SYNC,
+    payload: state,
   });
-    
-  const connectStore = (name) => dispatch => { 
+
+  const syncStore = () => dispatch => central.read().then(state => dispatch(syncState(state)));
+
+  const connectStore = name => (dispatch) => {
     dispatch({ type: TYPES.BLUETOOTH_CONNECTING });
-    return central.connect(name)
-      .then(() => central.handler((state) => dispatch(syncState(state))))
+    return central
+      .connect(name)
+      .then(() => central.handler(state => dispatch(syncState(state))))
       .then(() => dispatch({ type: TYPES.BLUETOOTH_CONNECTED }))
       .then(() => dispatch(syncStore()));
   };
 
-  const syncStore = () => dispatch => { 
-    return central.read()
-      .then(state => dispatch(syncState(state)));
-  };
+  const sendAction = action => () => central.write(action);
 
-  const sendAction = (action) => _ => {
-    return central.write(action);
-  };
-
-  return {  
-    connectStore, 
-    syncStore, 
+  return {
+    connectStore,
+    syncStore,
     syncState,
     sendAction,
-  }
+  };
 }
diff --git a/src/webapp/actions/actions.test.js b/src/webapp/actions/actions.test.js
index 7352fe9..99d1274 100644
--- a/src/webapp/actions/actions.test.js
+++ b/src/webapp/actions/actions.test.js
@@ -1,3 +1,4 @@
+/* global jest, beforeEach, afterEach, test, expect */
 import * as TYPES from './types';
 import Actions from './actions';
 
@@ -11,7 +12,7 @@ beforeEach(() => {
     handler: jest.fn(),
     read: jest.fn().mockReturnValue(Promise.resolve('mockState')),
     write: jest.fn().mockReturnValue(Promise.resolve()),
-  };  
+  };
 });
 
 afterEach(() => {
@@ -19,25 +20,25 @@ afterEach(() => {
   central = null;
 });
 
-test('syncState', () => { 
-  const { syncState } = Actions(central, TYPES);  
+test('syncState', () => {
+  const { syncState } = Actions(central, TYPES);
   const action = syncState('mockState');
 
-  expect(action).toEqual({ 
-    type: TYPES.BLUETOOTH_SYNC, 
-    payload: 'mockState' 
+  expect(action).toEqual({
+    type: TYPES.BLUETOOTH_SYNC,
+    payload: 'mockState',
   });
 });
 
-test('connectStore', () => { 
-  const { connectStore } = Actions(central, TYPES);  
+test('connectStore', () => {
+  const { connectStore } = Actions(central, TYPES);
   expect.assertions(6);
 
-  const promise = connectStore('mockName')(dispatch).then(_ => { 
+  const promise = connectStore('mockName')(dispatch).then(() => {
     expect(central.connect).toBeCalled();
     expect(central.handler).toBeCalled();
 
-    expect(dispatch.mock.calls.length).toBe(2); 
+    expect(dispatch.mock.calls.length).toBe(2);
     expect(dispatch.mock.calls[0][0]).toEqual({ type: TYPES.BLUETOOTH_CONNECTING });
     expect(dispatch.mock.calls[1][0]).toEqual({ type: TYPES.BLUETOOTH_CONNECTED });
 
@@ -47,11 +48,11 @@ test('connectStore', () => {
   return expect(promise).resolves.toBe(true);
 });
 
-test('syncStore', () => { 
+test('syncStore', () => {
   const { syncStore } = Actions(central, TYPES);
   expect.assertions(3);
 
-  const promise = syncStore()(dispatch).then(_ => { 
+  const promise = syncStore()(dispatch).then(() => {
     expect(central.read).toBeCalled();
     expect(dispatch).toBeCalledWith({ type: TYPES.BLUETOOTH_SYNC, payload: 'mockState' });
 
@@ -61,11 +62,11 @@ test('syncStore', () => {
   return expect(promise).resolves.toBe(true);
 });
 
-test('sendAction', () => { 
+test('sendAction', () => {
   const { sendAction } = Actions(central, TYPES);
   expect.assertions(2);
 
-  const promise = sendAction('mockAction')(dispatch).then(_ => { 
+  const promise = sendAction('mockAction')(dispatch).then(() => {
     expect(central.write).toBeCalledWith('mockAction');
 
     return true;
diff --git a/src/webapp/central/index.js b/src/webapp/central/index.js
index 5987547..401800a 100644
--- a/src/webapp/central/index.js
+++ b/src/webapp/central/index.js
@@ -1,69 +1,59 @@
 import { CENTRAL_CONFIG } from '../../common/config';
 import Encoder from '../../common/encoder';
 
-export function Central(
-  bluetooth, 
-  { encode, decode }, 
-  { SERVICE_UUID, CHARACTERISTIC_UUID }) { 
-  
+export function Central(bluetooth, { encode, decode }, { SERVICE_UUID, CHARACTERISTIC_UUID }) {
   const state = {
     server: null,
     characteristic: null,
-  } 
-
-  const connect = (name) => { 
-    return bluetooth.requestDevice({
-      filters: [{ services: [ SERVICE_UUID ], name: name }]
-    })
-    .then((device) => device.gatt.connect())
-    .then((server) => { 
-      state.server = server;
-      return server.getPrimaryService(SERVICE_UUID)
-    })
-    .then((service) => service.getCharacteristic(CHARACTERISTIC_UUID))    
-    .then((characteristic) => {
-      state.characteristic = characteristic;
-    });    
   };
 
-  const handler = ( callback ) => { 
-    return state.characteristic.startNotifications()
-    .then(() => {
-      state.characteristic.addEventListener('characteristicvaluechanged', (event) => { 
-        callback(decode(event.target.value));
+  const connect = name => bluetooth
+      .requestDevice({
+        filters: [{ services: [SERVICE_UUID], name }],
+      })
+      .then(device => device.gatt.connect())
+      .then((server) => {
+        state.server = server;
+        return server.getPrimaryService(SERVICE_UUID);
+      })
+      .then(service => service.getCharacteristic(CHARACTERISTIC_UUID))
+      .then((characteristic) => {
+        state.characteristic = characteristic;
       });
-    });
-  }
 
-  const read = () => { 
-    if ( state.server && state.server.connected && state.characteristic ) { 
-      return state.characteristic.readValue().then(data => { 
-        return decode(data);
-      });
+  const handler = callback => state.characteristic.startNotifications().then(() => {
+    state.characteristic.addEventListener('characteristicvaluechanged', (event) => {
+      callback(decode(event.target.value));
+    });
+  });
+
+  const read = () => {
+    if (state.server && state.server.connected && state.characteristic) {
+      return state.characteristic.readValue().then(data => decode(data));
     }
     return Promise.reject(new Error('Bluetooth: Not Connected'));
-  }
+  };
 
-  const write = (action) => { 
-    if ( state.server && state.server.connected && state.characteristic ) { 
-      const stringify = JSON.stringify(action);
-      const serialized = encode(stringify);
+  const write = (action) => {
+    if (!state.server || !state.server.connected || !state.characteristic) return null;
+    const stringify = JSON.stringify(action);
+    const serialized = encode(stringify);
 
-      return state.characteristic.writeValue(serialized);
-    }    
-  }
+    return state.characteristic.writeValue(serialized);
+  };
 
-  return { 
+  return {
     connected: state.server && state.server.connected,
-    connect, 
+    connect,
     handler,
     read,
-    write
-  }
+    write,
+  };
 }
 
+/* global navigator TextEncoder TextDecoder */
 export default new Central(
   navigator.bluetooth,
   Encoder({ TextEncoder, TextDecoder }),
-  CENTRAL_CONFIG
+  CENTRAL_CONFIG,
 );
diff --git a/src/webapp/index.js b/src/webapp/index.js
index 6bd71bf..2f39dea 100644
--- a/src/webapp/index.js
+++ b/src/webapp/index.js
@@ -12,4 +12,4 @@ export const status = STATUS;
 export const actions = { connectStore, syncStore };
 export const reducers = REDUCERS;
 export const middleware = MIDDLEWARE;
-export const createSyncStore = STORE;
\ No newline at end of file
+export const createSyncStore = STORE;
diff --git a/src/webapp/middleware/index.js b/src/webapp/middleware/index.js
index 5b72dcb..2e061c8 100644
--- a/src/webapp/middleware/index.js
+++ b/src/webapp/middleware/index.js
@@ -1,8 +1,9 @@
-import actions from '../actions';
-const { sendAction } = actions;
+import ACTIONS from '../actions';
 
-export default (actions = []) => store => next => action => {
+const { sendAction } = ACTIONS;
+
+export default (actions = []) => store => next => (action) => {
   const { type } = action;
-  actions.includes(type) && store.dispatch(sendAction(action)); 
+  if (actions.includes(type)) store.dispatch(sendAction(action));
   return next(action);
-}
+};
diff --git a/src/webapp/reducers/index.js b/src/webapp/reducers/index.js
index ca0af8c..4972eb7 100644
--- a/src/webapp/reducers/index.js
+++ b/src/webapp/reducers/index.js
@@ -1,19 +1,19 @@
 import * as TYPES from '../actions/types';
 import * as STATUS from '../central/status';
 
-const initial = { 
-  status: STATUS.INIT
+const initial = {
+  status: STATUS.INIT,
 };
 
 export default (autosync = true) => (state = initial, { type, payload }) => {
-  switch (type) { 
-    case TYPES.BLUETOOTH_CONNECTING: 
+  switch (type) {
+    case TYPES.BLUETOOTH_CONNECTING:
       return Object.assign({}, state, { status: STATUS.CONNECTING });
     case TYPES.BLUETOOTH_CONNECTED:
       return Object.assign({}, state, { status: STATUS.CONNECTED });
     case TYPES.BLUETOOTH_SYNC:
       return autosync ? Object.assign({}, state, { store: payload }) : state;
-    default: 
-      return state; 
+    default:
+      return state;
   }
 };
diff --git a/src/webapp/store/index.js b/src/webapp/store/index.js
index bd7e605..1ad1af8 100644
--- a/src/webapp/store/index.js
+++ b/src/webapp/store/index.js
@@ -1,24 +1,19 @@
+/* global window */
 import { createStore, applyMiddleware, compose } from 'redux';
 import thunk from 'redux-thunk';
 
 import middleware from '../middleware';
 import reducers from '../reducers';
 
-export default (actions) => { 
-  const middlewares = [
-    middleware(actions), 
-    thunk
-  ];
-  const enhancers = [
-    applyMiddleware(...middlewares),
-  ];
+export default (actions) => {
+  const middlewares = [middleware(actions), thunk];
+  const enhancers = [applyMiddleware(...middlewares)];
 
+  /* eslint-disable no-underscore-dangle */
   if (typeof window === 'object' && window.__REDUX_DEVTOOLS_EXTENSION__) {
     enhancers.push(window.__REDUX_DEVTOOLS_EXTENSION__());
   }
+  /* eslint-enable */
 
-  return createStore(
-    reducers(),
-    compose(...enhancers),
-  );  
-}
+  return createStore(reducers(), compose(...enhancers));
+};