handler.rs

    fn _read_json(&self, addr: &PhobosAddress) -> PhobosHandlerResult<JsonValue> {
        let bytes = match self._read_file(addr) {
            Ok(bytes) => bytes,
            Err(e) => {
                return Err(PhobosHandlerError::new(format!(
                    "{} read failed: {}",
                    addr.get_full_str(&self.base_path),
                    e
                )))
            }
        };
        let data = match serde_json::from_slice(&bytes) {
            Ok(data) => data,
            Err(e) => {
                return Err(PhobosHandlerError::new(format!(
                    "{} parsing failed: {}",
                    addr.get_full_str(&self.base_path),
                    e
                )))
            }
        };
        Ok(data)
    }