HTTP 400 · Bad Request
HTTP 400 Users & Peers

When & why it happens

A required contact name was omitted from the request. Populate it and retry.

Handling in gogram

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

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