Add possibility to define custom channels

README.md

@@ -23,8 +23,9 @@
 - [How to use](#how-to-use)
   - [1. General options](#1-general-options)
   - [2. Providers](#2-providers)
-  - [3. Send a notification](#3-send-a-notification)
-  - [4. In production](#4-in-production)
+  - [3. Custom channels](#3-custom-channels)
+  - [4. Send a notification](#4-send-a-notification)
+  - [5. In production](#5-in-production)
 - [Contributing](#contributing)
 - [Need help? Found a bug?](#need-help-found-a-bug)
 - [Related Projects](#related-projects)
@@ -98,8 +99,9 @@ $ NOTIFME_CATCHER_OPTIONS=smtp://127.0.0.1:3025?ignoreTLS=true node your-script-
 
 - [1. General options](#1-general-options)
 - [2. Providers](#2-providers)
-- [3. Send a notification](#3-send-a-notification)
-- [4. In production](#4-in-production)
+- [3. Custom channels](#3-custom-channels)
+- [4. Send a notification](#4-send-a-notification)
+- [5. In production](#5-in-production)
 
 ### 1. General options
 

src/index.js

@@ -2,6 +2,7 @@
 /* global $Keys */
 import NotificationCatcherProvider from './providers/notificationCatcherProvider'
 import Sender from './sender'
+import dedupe from './util/dedupe'
 import logger from './util/logger'
 import providerFactory from './providers'
 import strategyProvidersFactory from './strategies/providers'
@@ -36,7 +37,7 @@ export type NotificationRequestType = {
   voice?: VoiceRequestType,
   webpush?: WebpushRequestType,
   slack?: SlackRequestType
-  // TODO?: other channels (slack, messenger, skype, telegram, kik, spark...)
+  // TODO?: other channels (messenger, skype, telegram, kik, spark...)
 }
 
 export type NotificationStatusType = {
@@ -90,7 +91,11 @@ export default class NotifmeSdk {
     const providers = providerFactory(mergedOptions.channels)
     const strategies = strategyProvidersFactory(mergedOptions.channels)
 
-    this.sender = new Sender([...(Object.keys(CHANNELS)), ...(Object.keys(providers))], providers, strategies)
+    this.sender = new Sender(
+      dedupe([...Object.keys(CHANNELS), ...Object.keys(providers)]),
+      providers,
+      strategies
+    )
   }
 
   mergeWithDefaultConfig ({ channels, ...rest }: OptionsType) {

src/providers/index.js

@@ -40,9 +40,8 @@ export default function factory (channels: ChannelOptionsType): ProvidersType {
         case 'slack':
           return slackFactory(config)
 
-        default: {
+        default:
           return config
-        }
       }
     })
 

src/util/dedupe.js

@@ -0,0 +1,5 @@
+/* @flow */
+
+export default function dedupe (array: Array<any>): Array<any> {
+  return array.filter((element, position) => array.indexOf(element) === position)
+}