fix: error improvements

backend/src/server/plugins/error-handler.ts

@@ -19,28 +19,47 @@ enum JWTErrors {
   InvalidAlgorithm = "invalid algorithm"
 }
 
+enum HttpStatusCodes {
+  BadRequest = 400,
+  NotFound = 404,
+  Unauthorized = 401,
+  Forbidden = 403,
+  // eslint-disable-next-line @typescript-eslint/no-shadow
+  InternalServerError = 500
+}
+
 export const fastifyErrHandler = fastifyPlugin(async (server: FastifyZodProvider) => {
   server.setErrorHandler((error, req, res) => {
     req.log.error(error);
     if (error instanceof BadRequestError) {
-      void res.status(400).send({ statusCode: 400, message: error.message, error: error.name });
+      void res
+        .status(HttpStatusCodes.BadRequest)
+        .send({ statusCode: HttpStatusCodes.BadRequest, message: error.message, error: error.name });
     } else if (error instanceof NotFoundError) {
-      void res.status(404).send({ statusCode: 404, message: error.message, error: error.name });
+      void res
+        .status(HttpStatusCodes.NotFound)
+        .send({ statusCode: HttpStatusCodes.NotFound, message: error.message, error: error.name });
     } else if (error instanceof UnauthorizedError) {
-      void res.status(401).send({ statusCode: 401, message: error.message, error: error.name });
+      void res
+        .status(HttpStatusCodes.Unauthorized)
+        .send({ statusCode: HttpStatusCodes.Unauthorized, message: error.message, error: error.name });
     } else if (error instanceof DatabaseError || error instanceof InternalServerError) {
-      void res.status(500).send({ statusCode: 500, message: "Something went wrong", error: error.name });
+      void res
+        .status(HttpStatusCodes.InternalServerError)
+        .send({ statusCode: HttpStatusCodes.InternalServerError, message: "Something went wrong", error: error.name });
     } else if (error instanceof ZodError) {
-      void res.status(401).send({ statusCode: 401, error: "ValidationFailure", message: error.issues });
+      void res
+        .status(HttpStatusCodes.Unauthorized)
+        .send({ statusCode: HttpStatusCodes.Unauthorized, error: "ValidationFailure", message: error.issues });
     } else if (error instanceof ForbiddenError) {
-      void res.status(403).send({
+      void res.status(HttpStatusCodes.Forbidden).send({
-        statusCode: 403,
+        statusCode: HttpStatusCodes.Forbidden,
         error: "PermissionDenied",
         message: `You are not allowed to ${error.action} on ${error.subjectType}`
       });
     } else if (error instanceof ForbiddenRequestError) {
-      void res.status(403).send({
+      void res.status(HttpStatusCodes.Forbidden).send({
-        statusCode: 403,
+        statusCode: HttpStatusCodes.Forbidden,
         message: error.message,
         error: error.name
       });
@@ -66,8 +85,8 @@ export const fastifyErrHandler = fastifyPlugin(async (server: FastifyZodProvider
         return error.message;
       })();
 
-      void res.status(403).send({
+      void res.status(HttpStatusCodes.Forbidden).send({
-        statusCode: 403,
+        statusCode: HttpStatusCodes.Forbidden,
         error: "TokenError",
         message
       });

backend/src/server/routes/sanitizedSchemas.ts

@@ -40,12 +40,12 @@ export const DefaultResponseErrorsSchema = {
   }),
   401: z.object({
     statusCode: z.literal(401),
-    message: z.string(),
+    message: z.any(),
     error: z.string()
   }),
   403: z.object({
     statusCode: z.literal(403),
-    message: z.any(),
+    message: z.string(),
     error: z.string()
   }),
   500: z.object({