fix depreaction warn of get subscribers using pagination

packages/restapi/README.md

@@ -324,8 +324,8 @@ const searchResult = await userAlice.channel.search("push")
 ### **Get Subscribers Of A Channel**
 
 ```tsx
-// fetches subscribers of a channel
-const subscribersResult = await userAlice.channel.subscribers()
+// fetches subscribers of a channel in a paginated manner
+const subscribersResult = await userAlice.channel.subscribers({page: 1, limit: 10})
 
 ```
 
@@ -335,7 +335,8 @@ const subscribersResult = await userAlice.channel.subscribers()
 | --- | --- | --- | --- |
 | options* | ChannelInfoOptions | - | Configuration options for retrieving subscribers. |
 | options.channel* | string | - | Channel address in CAIP |
-
+| options.page* | number | - | The page number for pagination |
+| options.limit* | number | - | The maximum number of items to retrieve per page |
 \* - Optional
 
 ---

packages/restapi/src/lib/channels/_getSubscribers.ts

@@ -26,7 +26,7 @@ const deprecationWarning = `
 
 export const _getSubscribers = async (
   options: GetSubscribersOptionsType
-) => {
+) : Promise<string[]> => {
 
   console.warn(deprecationWarning);
 

packages/restapi/src/lib/pushNotification/PushNotificationTypes.ts

@@ -9,6 +9,8 @@ export type SubscriptionOptions = {
 };
 export type ChannelInfoOptions = {
   channel?: string;
+  page?: number;
+  limit?: number;
 };
 
 export type SubscribeUnsubscribeOptions = {

packages/restapi/src/lib/pushNotification/channel.ts

@@ -93,10 +93,21 @@ export class Channel extends PushNotificationBaseClass {
       if (!validateCAIP(channel!)) {
         throw new Error('Invalid CAIP');
       }
-      return await PUSH_CHANNEL._getSubscribers({
-        channel: channel!,
-        env: this.env,
-      });
+      if (options && options.page) {
+        return await PUSH_CHANNEL.getSubscribers({
+          channel: channel!,
+          env: this.env,
+          page: options.page,
+          limit: options.limit ?? 10,
+        });
+      } else {
+        /** @dev - Fallback to deprecated method when page is not provided ( to ensure backward compatibility ) */
+        /** @notice - This will be removed in V2 Publish */
+        return await PUSH_CHANNEL._getSubscribers({
+          channel: channel!,
+          env: this.env,
+        });
+      }
     } catch (error) {
       throw new Error(`Push SDK Error: API : channel::subscribers : ${error}`);
     }