setup prisma to connect to mysql database

.env.example

+# Environment variables declared in this file are automatically made available to Prisma.
+# See the documentation for more detail: https://pris.ly/d/prisma-schema#accessing-environment-variables-from-the-schema
+
+# Prisma supports the native connection string format for PostgreSQL, MySQL, SQLite, SQL Server, MongoDB and CockroachDB.
+# See the documentation for all the connection string options: https://pris.ly/d/connection-strings
+
+DATABASE_URL="mysql://<username>:<password>@localhost:3306/<db_name>?schema=public"
\ No newline at end of file

.gitignore

@@ -25,6 +25,7 @@ yarn-debug.log*
 yarn-error.log*
 
 # local env files
+.env
 .env*.local
 
 # vercel

backend/controllers/WelcomeController.js → app/controllers/WelcomeController.js

 import { Request, Response } from "express";
+
 const WelcomeController = {
   /**
    *

app/models/prismaClient.js

+import { PrismaClient } from "@prisma/client";
+
+const db = new PrismaClient();
+
+export default db;
\ No newline at end of file

package.json

@@ -9,8 +9,10 @@
     "lint": "next lint"
   },
   "dependencies": {
+    "@prisma/client": "5.3.1",
     "express": "^4.18.2",
     "next": "latest",
+    "prisma": "^5.3.1",
     "react": "latest",
     "react-dom": "latest"
   },

pnpm-lock.yaml

@@ -5,12 +5,18 @@ settings:
   excludeLinksFromLockfile: false
 
 dependencies:
+  '@prisma/client':
+    specifier: 5.3.1
+    version: 5.3.1(prisma@5.3.1)
   express:
     specifier: ^4.18.2
     version: 4.18.2
   next:
     specifier: latest
     version: 13.5.3(react-dom@18.2.0)(react@18.2.0)
+  prisma:
+    specifier: ^5.3.1
+    version: 5.3.1
   react:
     specifier: latest
     version: 18.2.0
@@ -253,6 +259,29 @@ packages:
       fastq: 1.15.0
     dev: true
 
+  /@prisma/client@5.3.1(prisma@5.3.1):
+    resolution: {integrity: sha512-ArOKjHwdFZIe1cGU56oIfy7wRuTn0FfZjGuU/AjgEBOQh+4rDkB6nF+AGHP8KaVpkBIiHGPQh3IpwQ3xDMdO0Q==}
+    engines: {node: '>=16.13'}
+    requiresBuild: true
+    peerDependencies:
+      prisma: '*'
+    peerDependenciesMeta:
+      prisma:
+        optional: true
+    dependencies:
+      '@prisma/engines-version': 5.3.1-2.61e140623197a131c2a6189271ffee05a7aa9a59
+      prisma: 5.3.1
+    dev: false
+
+  /@prisma/engines-version@5.3.1-2.61e140623197a131c2a6189271ffee05a7aa9a59:
+    resolution: {integrity: sha512-y5qbUi3ql2Xg7XraqcXEdMHh0MocBfnBzDn5GbV1xk23S3Mq8MGs+VjacTNiBh3dtEdUERCrUUG7Z3QaJ+h79w==}
+    dev: false
+
+  /@prisma/engines@5.3.1:
+    resolution: {integrity: sha512-6QkILNyfeeN67BNEPEtkgh3Xo2tm6D7V+UhrkBbRHqKw9CTaz/vvTP/ROwYSP/3JT2MtIutZm/EnhxUiuOPVDA==}
+    requiresBuild: true
+    dev: false
+
   /@rushstack/eslint-patch@1.5.0:
     resolution: {integrity: sha512-EF3948ckf3f5uPgYbQ6GhyA56Dmv8yg0+ir+BroRjwdxyZJsekhZzawOecC2rOTPCz173t7ZcR1HHZu0dZgOCw==}
     dev: true
@@ -2249,6 +2278,15 @@ packages:
     engines: {node: '>= 0.8.0'}
     dev: true
 
+  /prisma@5.3.1:
+    resolution: {integrity: sha512-Wp2msQIlMPHe+5k5Od6xnsI/WNG7UJGgFUJgqv/ygc7kOECZapcSz/iU4NIEzISs3H1W9sFLjAPbg/gOqqtB7A==}
+    engines: {node: '>=16.13'}
+    hasBin: true
+    requiresBuild: true
+    dependencies:
+      '@prisma/engines': 5.3.1
+    dev: false
+
   /prop-types@15.8.1:
     resolution: {integrity: sha512-oj87CgZICdulUohogVAR7AjlC0327U4el4L6eAvOqCeudMDVU0NThNaV+b9Df4dXgSP1gXMTnPdhfe/2qDH5cg==}
     dependencies:

prisma/migrations/20230928134430_dev/migration.sql

+-- CreateTable
+CREATE TABLE `users` (
+    `id` INTEGER NOT NULL AUTO_INCREMENT,
+    `name` VARCHAR(191) NOT NULL,
+    `username` VARCHAR(191) NOT NULL,
+    `password` VARCHAR(191) NOT NULL,
+
+    UNIQUE INDEX `users_username_key`(`username`),
+    PRIMARY KEY (`id`)
+) DEFAULT CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;

prisma/migrations/migration_lock.toml

+# Please do not edit this file manually
+# It should be added in your version-control system (i.e. Git)
+provider = "mysql"
\ No newline at end of file

prisma/schema.prisma

+// This is your Prisma schema file,
+// learn more about it in the docs: https://pris.ly/d/prisma-schema
+
+generator client {
+  provider = "prisma-client-js"
+}
+
+datasource db {
+  provider = "mysql"
+  url      = env("DATABASE_URL")
+}
+
+model users {
+  id       Int    @id @default(autoincrement())
+  name     String
+  username String @unique
+  password String
+}