HTTP 400 · Bad Request
HTTP 400 Folders / Filters

When & why it happens

A required folder id 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 == "FOLDER_ID_EMPTY" { // handle this error } }