chore: improve prisma exception filter messages (#18227)

* chore: improve prisma exception filter messages

* fixup! chore: improve prisma exception filter messages

apps/api/v2/src/filters/prisma-exception.filter.ts

@@ -9,7 +9,13 @@ import {
 } from "@prisma/client/runtime/library";
 import { Request } from "express";
 
-import { ERROR_STATUS, INTERNAL_SERVER_ERROR } from "@calcom/platform-constants";
+import {
+  BAD_REQUEST,
+  CONFLICT,
+  ERROR_STATUS,
+  INTERNAL_SERVER_ERROR,
+  NOT_FOUND,
+} from "@calcom/platform-constants";
 import { Response } from "@calcom/platform-types";
 
 type PrismaError =
@@ -43,11 +49,37 @@ export class PrismaExceptionFilter implements ExceptionFilter {
       method: request.method,
       requestId,
     });
-    response.status(HttpStatus.INTERNAL_SERVER_ERROR).json({
+
+    let message = "There was an error, please try again later.";
+    let statusCode = HttpStatus.INTERNAL_SERVER_ERROR;
+    let errorCode = INTERNAL_SERVER_ERROR;
+    if (error instanceof PrismaClientKnownRequestError) {
+      switch (error.code) {
+        case "P2002": // Unique constraint failed
+          errorCode = CONFLICT;
+          statusCode = HttpStatus.CONFLICT;
+          message = "Invalid Input: Trying to create a record that already exists.";
+          break;
+        case "P2025": // Record not found
+          errorCode = NOT_FOUND;
+          statusCode = HttpStatus.NOT_FOUND;
+          message = "Invalid Query: The requested record was not found.";
+          break;
+        case "P2003": // Foreign key constraint failed
+          errorCode = BAD_REQUEST;
+          statusCode = HttpStatus.BAD_REQUEST;
+          message = "Invalid input: The referenced data does not exist.";
+          break;
+        default:
+          break;
+      }
+    }
+
+    response.status(statusCode).json({
       status: ERROR_STATUS,
       timestamp: new Date().toISOString(),
       path: request.url,
-      error: { code: INTERNAL_SERVER_ERROR, message: "There was an error, please try again later." },
+      error: { code: errorCode, message: message },
     });
   }
 }

packages/platform/constants/api.ts

@@ -18,6 +18,7 @@ export const METHOD_NOT_ALLOWED = "METHOD_NOT_ALLOWED";
 export const UNPROCESSABLE_ENTITY = "UNPROCESSABLE_ENTITY";
 export const ACCESS_TOKEN_EXPIRED = "ACCESS_TOKEN_IS_EXPIRED";
 export const INVALID_ACCESS_TOKEN = "Invalid Access Token.";
+export const CONFLICT = "CONFLICT";
 
 // Server Errors (5xx)
 export const INTERNAL_SERVER_ERROR = "INTERNAL_SERVER_ERROR";