Module chrono::serde::ts_nanoseconds_option
source · Expand description
Ser/de to/from optional timestamps in nanoseconds
Intended for use with serde
’s with
attribute.
Example:
use chrono::serde::ts_nanoseconds_option;
#[derive(Deserialize, Serialize)]
struct S {
#[serde(with = "ts_nanoseconds_option")]
time: Option<DateTime<Utc>>
}
let time = Some(NaiveDate::from_ymd_opt(2018, 5, 17).unwrap().and_hms_nano_opt(02, 04, 59, 918355733).unwrap().and_local_timezone(Utc).unwrap());
let my_s = S {
time: time.clone(),
};
let as_string = serde_json::to_string(&my_s)?;
assert_eq!(as_string, r#"{"time":1526522699918355733}"#);
let my_s: S = serde_json::from_str(&as_string)?;
assert_eq!(my_s.time, time);
Functions
- Deserialize a
DateTime
from a nanosecond timestamp or none - Serialize a UTC datetime into an integer number of nanoseconds since the epoch or none