initial commit of message loading with paging

chatto/src/main/javascript/ts/src/model/ChatModelHelper.ts

@@ -11,6 +11,7 @@ import { fetchErrorHandler } from "./FetchErrorHandler";
 import { EncryptionService } from "../service/EncryptionService";
 import { SJCLEncryptionService } from "../service/SJCLEncryptionService";
 import { ChatModel } from "./ChatModel"
+import { Sprintf } from "../singleton/Sprintf";
 export class ChatModelHelper {
     private static readonly _encryptionService: EncryptionService = new SJCLEncryptionService();
 
@@ -46,7 +47,14 @@ export class ChatModelHelper {
             return;
         };
         headers.append('X-AUTH-TOKEN', JsonAPI.authToken);
-        const response = await fetch(`${JsonAPI.CHAT_MESSAGES_GET}/${toUser}`, {
+        // const url = Sprintf(JsonAPI.CHAT_MESSAGES_GET, toUser);
+        const url = Sprintf(JsonAPI.CHAT_MESSAGE_PAGE_GET, toUser,1,5);
+        log.debug(url)
+        // const response = await fetch(`${JsonAPI.CHAT_MESSAGES_GET}/${toUser}`, {
+        //     method: 'GET',
+        //     headers: headers
+        // });
+        const response = await fetch(url, {
             method: 'GET',
             headers: headers
         });

chatto/src/main/javascript/ts/src/singleton/JsonAPI.ts

@@ -4,7 +4,33 @@ export namespace JsonAPI {
     export let contactName: string | null;
     export let authToken: string | null = localStorage.getItem('authToken');
     export const ACTIVE_USERS_GET = `/api/chat/get/active-users`;
-    export const CHAT_MESSAGES_GET = `/api/chat/get/messages`;
+    /**
+     * Json API URL for retrieving all messages between two users
+     * 
+     * @format /api/chat/get/messages/some-user
+     * 
+     * ### With sprintf
+     * const url = Sprintf(JsonAPI.CHAT_MESSAGES_GET, toUser);
+     * 
+     * @param toUser
+     * The user whose messages wish to retrieve. The 'from user' part of the message is given by the current user logged in.
+     * /api/chat/get/messages/{toUser}
+     * 
+     */
+    export const CHAT_MESSAGES_GET = `/api/chat/get/messages/%s`;
     export const MESSAGE_POST = '/api/chat/post/message';
+    /**
+     * Json API URL for retrieving paginated messages between two users
+     * 
+     * @format /api/chat/get/messages/some-user?page=1&size=5 will give the first page with size 5
+     * 
+     * ### With sprintf
+     * const url = Sprintf(JsonAPI.CHAT_MESSAGES_GET, toUser);
+     * 
+     * @param toUser The user whose messages wish to retrieve. The 'from user' part of the message is given by the current user logged in.
+     * @param page Denotes the page required
+     * @param denotes the size of each page
+     */
+    export const CHAT_MESSAGE_PAGE_GET = `/api/chat/get/messages/%s?page=%d&size=%d`;
     
 }