getUserName path implemented

frontend/src/API/API.ts

@@ -233,6 +233,12 @@ interface API {
     projectName: string,
     token: string,
   ): Promise<APIResponse<string>>;
+  /**
+   * Get the username from the id
+   * @param {number} id The id of the user
+   * @param {string} token Your token
+   */
+  getUsername(id: number, token: string): Promise<APIResponse<string>>;
 }
 
 /** An instance of the API */
@@ -870,4 +876,25 @@ export const api: API = {
     }
     return { success: true, message: "User promoted to project manager" };
   },
+
+  async getUsername(id: number, token: string): Promise<APIResponse<string>> {
+    try {
+      const response = await fetch(`/api/username?userId=${id}`, {
+        method: "GET",
+        headers: {
+          "Content-Type": "application/json",
+          Authorization: "Bearer " + token,
+        },
+      });
+
+      if (!response.ok) {
+        return { success: false, message: "Failed to get username" };
+      } else {
+        const data = (await response.json()) as string;
+        return { success: true, data };
+      }
+    } catch (e) {
+      return { success: false, message: "Failed to get username" };
+    }
+  },
 };