init studio admin backend

src/prisma/prisma.module.ts

@@ -0,0 +1,9 @@
+import { Module } from '@nestjs/common';
+
+import { PrismaService } from './prisma.service';
+
+@Module({
+  providers: [PrismaService],
+  exports: [PrismaService],
+})
+export class PrismaModule {}

src/prisma/prisma.service.ts

@@ -0,0 +1,32 @@
+import { Injectable, OnModuleDestroy, OnModuleInit } from '@nestjs/common';
+import { ConfigService } from '@nestjs/config';
+import { PrismaClient } from '@prisma/client';
+
+@Injectable()
+export class PrismaService
+  extends PrismaClient
+  implements OnModuleInit, OnModuleDestroy
+{
+  constructor(private readonly configService: ConfigService) {
+    super();
+  }
+
+  async onModuleInit() {
+    try {
+      await this.$connect();
+    } catch (error) {
+      if (this.configService.get<string>('DATABASE_OPTIONAL') === 'true') {
+        console.warn(
+          'Database connection failed. Continuing because DATABASE_OPTIONAL=true.',
+        );
+        return;
+      }
+
+      throw error;
+    }
+  }
+
+  async onModuleDestroy() {
+    await this.$disconnect();
+  }
+}