diff --git a/frontend/src/API/API.ts b/frontend/src/API/API.ts
index 5c49a8d..a39ce9b 100644
--- a/frontend/src/API/API.ts
+++ b/frontend/src/API/API.ts
@@ -6,6 +6,7 @@ import {
   NewProject,
   UserProjectMember,
   WeeklyReport,
+  StrNameChange,
 } from "../Types/goTypes";
 
 /**
@@ -133,6 +134,16 @@ interface API {
     projectName: string,
     token: string,
   ): Promise<APIResponse<UserProjectMember[]>>;
+  /**
+   * Changes the username of a user in the database.
+   * @param {StrNameChange} data The object containing the previous and new username.
+   * @param {string} token The authentication token.
+   * @returns {Promise<APIResponse<void>>} A promise resolving to an API response.
+   */
+  changeUserName(
+    data: StrNameChange,
+    token: string,
+  ): Promise<APIResponse<void>>;
 }
 
 /** An instance of the API */
@@ -342,7 +353,9 @@ export const api: API = {
       if (!response.ok) {
         return { success: false, message: "Failed to get weekly report" };
       } else {
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
         const data = (await response.json()) as WeeklyReport;
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
         return { success: true, data };
       }
     } catch (e) {
@@ -484,4 +497,12 @@ export const api: API = {
       });
     }
   },
+  changeUserName: function (
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    _data: StrNameChange,
+    // eslint-disable-next-line @typescript-eslint/no-unused-vars
+    token: string,
+  ): Promise<APIResponse<void>> {
+    throw new Error("Function not implemented.");
+  },
 };