done database setup using Postgres and railway

Author: Rajkumar-Khatua

.gitignore

@@ -27,6 +27,7 @@ yarn-error.log*
 
 # local env files
 .env*.local
+.env
 
 # vercel
 .vercel

lib/db.ts

@@ -0,0 +1,18 @@
+import { PrismaClient } from "@prisma/client";
+
+declare global {
+  // eslint-disable-next-line no-var
+  var cachedPrisma: PrismaClient;
+}
+
+let prisma: PrismaClient;
+if (process.env.NODE_ENV === "production") {
+  prisma = new PrismaClient();
+} else {
+  if (!global.cachedPrisma) {
+    global.cachedPrisma = new PrismaClient();
+  }
+  prisma = global.cachedPrisma;
+}
+
+export const db = prisma;