From 9d09cb1e281424d4c6d4363fd679a6da1c00aa87 Mon Sep 17 00:00:00 2001
From: Ralph Slooten <axllent@gmail.com>
Date: Sat, 27 Jun 2026 21:16:30 +1200
Subject: [PATCH] Fix: Handle MaxBytesError in SendMessageHandler and return
 JSON error response

---
 server/apiv1/send.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/server/apiv1/send.go b/server/apiv1/send.go
index b13b5d2..378bdec 100644
--- a/server/apiv1/send.go
+++ b/server/apiv1/send.go
@@ -54,7 +54,10 @@ func SendMessageHandler(w http.ResponseWriter, r *http.Request) {
 	if err != nil {
 		var maxErr *http.MaxBytesError
 		if errors.As(err, &maxErr) {
+			w.Header().Set("Content-Type", "application/json")
 			w.WriteHeader(http.StatusRequestEntityTooLarge)
+			_ = json.NewEncoder(w).Encode(struct{ Error string }{Error: err.Error()})
+			return
 		}
 		httpJSONError(w, err.Error())
 		return