Method is_json

src/fl/net/http/fetch.h:122–130

Check if response appears to contain JSON content @return true if Content-Type header indicates JSON or body contains JSON markers

    /// Check if response appears to contain JSON content
    /// @return true if Content-Type header indicates JSON or body contains JSON markers
    bool is_json() const {
        auto content_type = get_content_type();
        if (content_type.has_value()) {
            fl::string ct = *content_type;
            // Check for various JSON content types (case-insensitive)
            return ct.find("json") != fl::string::npos;
        }
        return false;
    }
    
    /// Set methods (internal use)
    void set_status(int status_code) { mStatusCode = status_code; }