Add types, bump to 2.0.3 [fixes #29]

package.json

@@ -1,10 +1,11 @@
 {
   "name": "slack-notify",
   "description": "A simple Node.js wrapper around the Slack webhook API.",
-  "version": "2.0.2",
+  "version": "2.0.3",
   "repository": "https://github.com/andrewchilds/slack-notify.git",
   "homepage": "https://github.com/andrewchilds/slack-notify",
   "main": "./src/esm/index.mjs",
+  "types": "./src/index.d.ts",
   "author": {
     "name": "Andrew Childs",
     "email": "[email protected]"

src/index.d.ts

@@ -0,0 +1,38 @@
+declare module 'slack-notify' {
+  interface SlackNofifier {
+    send(args: string | SendArgs): Promise<void>;
+  }
+
+  interface SlackNotify extends SlackNofifier {
+    extend(args: string | SendArgs): SlackNofifier;
+    success(args: string | SendArgs): SlackNofifier;
+    bug(args: string | SendArgs): SlackNofifier;
+    alert(args: string | SendArgs): SlackNofifier;
+  }
+
+  interface SendArgs {
+    text: string;
+    channel?: string;
+    icno_url?: string;
+    icon_emoji?: string;
+    unfurl_links?: number;
+    username?: string;
+    attachments?: SendAttachment[];
+    fields?: { [key: string]: string }[];
+  }
+
+  interface SendAttachment {
+    fallback: string;
+    fields?: SendAttachmentField[];
+  }
+
+  interface SendAttachmentField {
+    title: string;
+    value: string;
+    short: boolean;
+  }
+
+  function SlackNotifyFactory(webhookUrl: string): SlackNotify;
+
+  export default SlackNotifyFactory;
+}