time/serde/timestamp/
mod.rs

1//! Treat an [`OffsetDateTime`] as a [Unix timestamp] for the purposes of serde.
2//!
3//! Use this module in combination with serde's [`#[with]`][with] attribute.
4//!
5//! When deserializing, the offset is assumed to be UTC.
6//!
7//! [Unix timestamp]: https://en.wikipedia.org/wiki/Unix_time
8//! [with]: https://serde.rs/field-attrs.html#with
9
10pub mod microseconds;
11pub mod milliseconds;
12pub mod nanoseconds;
13
14use serde::{de, Deserialize, Deserializer, Serialize, Serializer};
15
16use crate::OffsetDateTime;
17
18/// Serialize an `OffsetDateTime` as its Unix timestamp
19pub fn serialize<S: Serializer>(
20    datetime: &OffsetDateTime,
21    serializer: S,
22) -> Result<S::Ok, S::Error> {
23    datetime.unix_timestamp().serialize(serializer)
24}
25
26/// Deserialize an `OffsetDateTime` from its Unix timestamp
27pub fn deserialize<'a, D: Deserializer<'a>>(deserializer: D) -> Result<OffsetDateTime, D::Error> {
28    OffsetDateTime::from_unix_timestamp(<_>::deserialize(deserializer)?)
29        .map_err(|err| de::Error::invalid_value(de::Unexpected::Signed(err.value), &err))
30}
31
32/// Treat an `Option<OffsetDateTime>` as a [Unix timestamp] for the purposes of
33/// serde.
34///
35/// Use this module in combination with serde's [`#[with]`][with] attribute.
36///
37/// When deserializing, the offset is assumed to be UTC.
38///
39/// [Unix timestamp]: https://en.wikipedia.org/wiki/Unix_time
40/// [with]: https://serde.rs/field-attrs.html#with
41pub mod option {
42    #[allow(clippy::wildcard_imports)]
43    use super::*;
44
45    /// Serialize an `Option<OffsetDateTime>` as its Unix timestamp
46    pub fn serialize<S: Serializer>(
47        option: &Option<OffsetDateTime>,
48        serializer: S,
49    ) -> Result<S::Ok, S::Error> {
50        option
51            .map(OffsetDateTime::unix_timestamp)
52            .serialize(serializer)
53    }
54
55    /// Deserialize an `Option<OffsetDateTime>` from its Unix timestamp
56    pub fn deserialize<'a, D: Deserializer<'a>>(
57        deserializer: D,
58    ) -> Result<Option<OffsetDateTime>, D::Error> {
59        Option::deserialize(deserializer)?
60            .map(OffsetDateTime::from_unix_timestamp)
61            .transpose()
62            .map_err(|err| de::Error::invalid_value(de::Unexpected::Signed(err.value), &err))
63    }
64}
time/serde/timestamp/mod.rs

time/serde/timestamp/
mod.rs
