HTTP 400 · Bad Request
HTTP 400 Messages

When & why it happens

The message id does not exist in this peer (already deleted, never existed, or wrong chat).

Handling in gogram

Surfaced as *gogram.ErrResponseCode. Match on the message:

if err, ok := err.(*gogram.ErrResponseCode); ok { if err.Message == "MESSAGE_ID_INVALID" { // handle this error } }