Refactor the endpoints to share common code

src/Controllers/admin.controller.ts

@@ -87,19 +87,13 @@ export const createAdmin = async (req: Request<{}, {}, CreateAdminBody>, res: Re
   if (
     !(typeof name === "string" && typeof password == "string" && isPermissionLevel(permission_level) && groupsIsValid)
   ) {
-    return res.status(400).json({
-      type: "error",
-      payload: {
-        message: "The body of your request did not conform to the requirements",
-        schema: {
-          body: {
-            name: "string",
-            password_level: "string",
-            permission_level: "'STANDARD' | 'ELEVATED'",
-          },
-        },
-      },
-    });
+    return res.status(400).json(
+      generateInvalidBodyError({
+        name: DataType.STRING,
+        password: DataType.STRING,
+        permission_level: DataType.PERMISSION_LEVEL,
+      })
+    );
   }
 
   const password_hash = await argon2.hash(password, { type: argon2.argon2id });

src/Controllers/admin_auth.controller.ts

@@ -4,6 +4,7 @@ import { authClient } from "../lib/redis";
 import prisma from "../lib/prisma";
 import argon2 from "argon2";
 import jwt from "jsonwebtoken";
+import { DataType, generateInvalidBodyError } from "./common";
 
 const JWT_SECRET = process.env.JWT_SECRET || "secret";
 const TOKEN_EXPIRY = "4 days";
@@ -39,12 +40,7 @@ export const authenticateUser = async (req: Request<{}, {}, AuthenticateUserBody
   const { name, password } = req.body || {};
 
   if (name == null || password == null) {
-    return res.status(400).json({
-      type: "error",
-      payload: {
-        message: "The body must contain 'name' and 'password' attributes of type string",
-      },
-    });
+    return res.status(400).json(generateInvalidBodyError({ name: DataType.STRING, password: DataType.STRING }));
   }
 
   const user = await prisma.admin.findFirst({ where: { name }, include: { groups: true } });