gistfile1.txt

    /// Generic post
    fn post<S>(
        &self,
        url: S,
        body: &Value
    ) -> Result<Response, Box<dyn std::error::Error>>
    where
        S: IntoUrl,
    {

        match self.client
            .post(url)
            .headers_011(self.default_headers())
            .json(&body)
            .send() {
                Ok(response) => Ok(response),
                Err(e) => Err(Box::new(e))
            }
    }
}