feat: implement course progress persistence

backend/prisma.config.ts

@@ -2,16 +2,11 @@
 // npm install --save-dev prisma dotenv
 import 'dotenv/config';
 import { defineConfig } from 'prisma/config';
-import { PrismaPg } from '@prisma/adapter-pg';
-import pg from 'pg';
 
 const connectionString =
   process.env.DATABASE_URL ||
   'postgresql://postgres:postgres@localhost:5432/web3-student-lab?schema=public';
 
-const pool = new pg.Pool({ connectionString });
-const adapter = new PrismaPg(pool);
-
 export default defineConfig({
   schema: 'prisma/schema.prisma',
   datasource: {

backend/prisma/seed.ts

@@ -22,7 +22,8 @@ async function main() {
     create: {
       id: 'course-2',
       title: 'Stellar Blockchain Fundamentals',
-      description: 'Understand how the Stellar blockchain works, including assets, accounts, and trustlines.',
+      description:
+        'Understand how the Stellar blockchain works, including assets, accounts, and trustlines.',
       instructor: 'Web3 Academy',
       credits: 2,
     },

backend/src/auth/auth.middleware.ts

@@ -18,7 +18,7 @@ declare global {
 export const authenticate = async (
   req: Request,
   res: Response,
-  next: NextFunction,
+  next: NextFunction
 ): Promise<void> => {
   try {
     const authHeader = req.headers.authorization;
@@ -70,7 +70,7 @@ export const authenticate = async (
 export const optionalAuth = async (
   req: Request,
   res: Response,
-  next: NextFunction,
+  next: NextFunction
 ): Promise<void> => {
   try {
     const authHeader = req.headers.authorization;

backend/src/auth/auth.service.ts

@@ -19,7 +19,7 @@ export const hashPassword = async (password: string): Promise<string> => {
  */
 export const comparePassword = async (
   password: string,
-  hashedPassword: string,
+  hashedPassword: string
 ): Promise<boolean> => {
   return bcrypt.compare(password, hashedPassword);
 };