}
        if (paramList == null) {
            paramList = new ArrayList<>();
        }
        paramList.add(encode(key) + "=" + encode(value));
        return this;
    }

    public CurlRequest header(final String key, final String value) {
        if (headerList == null) {
            headerList = new ArrayList<>();
        }
        headerList.add(new String[] { key, value });
        return this;
    }