将字节数组设置为json.RawMessage

I have array of bytes in golang:

obj_data, _ := json.Marshal(obj)

And a want set this array of bytes into json.RawMessage I thought that it would work:

data := json.RawMessage{obj_data}

but i have error:

cannot use obj_data (type []byte) as type byte in array element

please help me! =)

You need a type conversion, not a literal:

data := json.RawMessage(obj_data)