ocpp_rs 0.2.5

Protocol implementation for Open Charge Point Protocol (OCPP) in Rust.
Documentation 
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use super::data_types::DateTimeWrapper;
// New type pattern to implement Arbitrary for DateTime

// Serializer for serde that forces to be in the format of ISO8601
pub(crate) mod iso8601_date_time {
    use super::DateTimeWrapper;
    use alloc::{format, string::String};
    use chrono::{DateTime, NaiveDateTime, Utc};
    use serde::{self, Deserialize, Deserializer, Serializer};

    static FORMAT: &str = "%Y-%m-%dT%H:%M:%S%.3fZ";

    pub fn serialize<S>(date: &DateTimeWrapper, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        let s = format!("{}", date.inner().format(FORMAT));
        serializer.serialize_str(&s)
    }

    pub fn deserialize<'de, D>(deserializer: D) -> Result<DateTimeWrapper, D::Error>
    where
        D: Deserializer<'de>,
    {
        let s = String::deserialize(deserializer)?;
        let dt = NaiveDateTime::parse_from_str(&s, FORMAT).map_err(serde::de::Error::custom)?;
        Ok(DateTimeWrapper::new(
            DateTime::<Utc>::from_naive_utc_and_offset(dt, Utc),
        ))
    }
}

pub(crate) mod iso8601_date_time_optional {
    use super::DateTimeWrapper;
    use alloc::{format, string::String};
    use chrono::{DateTime, NaiveDateTime, Utc};
    use serde::{self, Deserialize, Deserializer, Serializer};

    static FORMAT: &str = "%Y-%m-%dT%H:%M:%S%.3fZ";

    #[allow(clippy::ref_option)]
    pub fn serialize<S>(date: &Option<DateTimeWrapper>, serializer: S) -> Result<S::Ok, S::Error>
    where
        S: Serializer,
    {
        match date {
            Some(date) => {
                let s = format!("{}", date.inner().format(FORMAT));
                serializer.serialize_str(&s)
            }
            None => serializer.serialize_none(),
        }
    }

    pub fn deserialize<'de, D>(deserializer: D) -> Result<Option<DateTimeWrapper>, D::Error>
    where
        D: Deserializer<'de>,
    {
        let opt: Option<String> = Option::deserialize(deserializer)?;
        match opt {
            Some(s) => {
                let dt =
                    NaiveDateTime::parse_from_str(&s, FORMAT).map_err(serde::de::Error::custom)?;
                Ok(Some(DateTimeWrapper::new(
                    DateTime::<Utc>::from_naive_utc_and_offset(dt, Utc),
                )))
            }
            None => Ok(None),
        }
    }
}