use axum::extract::Request;
pub fn get_mime_type(req: &Request) -> Option<&str> {
req.headers()
.get(axum::http::header::CONTENT_TYPE)
.and_then(|value| value.to_str().ok())
}
pub const APPLICATION_JSON: &str = "application/json";
pub const APPLICATION_PROTOBUF: &str = "application/x-protobuf";