revert: "fix: create prisma client singleton with immediately invoked function" (#12366)

apps/api/lib/helpers/customPrisma.ts

@@ -1,7 +1,7 @@
 import type { NextMiddleware } from "next-api-middleware";
 
 import { CONSOLE_URL } from "@calcom/lib/constants";
-import prisma, { customPrisma } from "@calcom/prisma";
+import { customPrisma } from "@calcom/prisma";
 
 const LOCAL_CONSOLE_URL = process.env.NEXT_PUBLIC_CONSOLE_URL || CONSOLE_URL;
 
@@ -12,41 +12,32 @@ export const customPrismaClient: NextMiddleware = async (req, res, next) => {
   } = req;
   // If no custom api Id is provided, attach to request the regular cal.com prisma client.
   if (!key) {
-    req.prisma = prisma;
+    req.prisma = customPrisma();
     await next();
     return;
   }
 
-  try {
-    // If we have a key, we check if the deployment matching the key, has a databaseUrl value set.
-    const databaseUrl = await fetch(`${LOCAL_CONSOLE_URL}/api/deployments/database?key=${key}`)
-      .then((res) => res.json())
-      .then((res) => res.databaseUrl);
+  // If we have a key, we check if the deployment matching the key, has a databaseUrl value set.
+  const databaseUrl = await fetch(`${LOCAL_CONSOLE_URL}/api/deployments/database?key=${key}`)
+    .then((res) => res.json())
+    .then((res) => res.databaseUrl);
 
-    if (!databaseUrl) {
-      res.status(400).json({ error: "no databaseUrl set up at your instance yet" });
-      return;
-    }
-    req.prisma = customPrisma({ datasources: { db: { url: databaseUrl } } });
-    /* @note:
+  if (!databaseUrl) {
+    res.status(400).json({ error: "no databaseUrl set up at your instance yet" });
+    return;
+  }
+  req.prisma = customPrisma({ datasources: { db: { url: databaseUrl } } });
+  /* @note:
     In order to skip verifyApiKey for customPrisma requests, 
     we pass isAdmin true, and userId 0, if we detect them later, 
     we skip verifyApiKey logic and pass onto next middleware instead.
      */
-    req.isAdmin = true;
-    req.isCustomPrisma = true;
-    // We don't need the key from here and on. Prevents unrecognized key errors.
-    delete req.query.key;
-    await next();
-    await req.prisma.$disconnect();
-    // @ts-expect-error testing
-    delete req.prisma;
-  } catch (err) {
-    if (req.prisma) {
-      await req.prisma.$disconnect();
-      // @ts-expect-error testing
-      delete req.prisma;
-    }
-    throw err;
-  }
+  req.isAdmin = true;
+  req.isCustomPrisma = true;
+  // We don't need the key from here and on. Prevents unrecognized key errors.
+  delete req.query.key;
+  await next();
+  await req.prisma.$disconnect();
+  // @ts-expect-error testing
+  delete req.prisma;
 };