Why does mysql return \ufffd \ufffd?

Question

MySQL

Good evening.
RestAPI in golang returns json like this:

"Title": "\ufffd \ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd\ufffd"

Tried after connecting:

db.Query("SET NAMES UTF8")
db.Query("SET CHARACTER SET UTF8")

Did not help. Tell me, pliz, how to treat?! )

Answer 1

The problem was solved by adding "?charset=utf8" to the connection string :)
Thank you all.

Answer 2

Isn't this the standard for escaping characters when passing json? Try to serialize and then throw in a string, and on the site already parse as json

Answer 3

db.Query("SET NAMES utf8mb4 ")
db.Query("SET CHARACTER SET utf8mb4")
So try