pub fn convert_datetime(
value: String,
format: String
) -> Result<DateTime<Utc>, String>
Convert datetime string to DateTime
let result_obj_aux: Result<DateTime<Utc>, String>;
result_obj_aux = convert_datetime("20190522T232701Z", "%Y%m%dT%H%M%SZ".to_string());
match result_obj_aux{
Ok(val) => {
println!("{}", val);
},
Err(_) => (),
}