Serialize date from string "yyyy-MM-dd"?

[Zerowalker]

Is it possible to achieve this?

Here's an example (that doesn't work):

#[derive(Serialize, Deserialize, Debug)]
pub struct Foo {
    pub from: time::Date,
    pub to: time::Date,
}

let json = "{ \"from\": \"2024-01-01\", \"to\": \"2024-01-02\"}";
let q: Foo= serde_json::from_str(json).unwrap();

[jhpratt]

What is your Cargo.toml?

[Zerowalker]

[package]
name = "test"
version = "0.1.0"
edition = "2021"

[dependencies]
serde = { version = "1", features = ["derive"] }
serde_json = { version = "1", features = [] }
time = { version = "0.3", features = ["std", "serde"] }

[jhpratt]

You'll want to enable to serde-human-readable feature to be able to parse non-binary representations with serde.

[Zerowalker]

Oh, that solved it, thanks!

Do I wonder, when that is not enabled, how can Date be deserialized?
It says "binary representations", but what does that actually mean in practice?

[jhpratt]

In the case of Date, the binary representation is the year followed by the ordinal (1-indexed day of year). The exact format may not be documented anywhere. In practice the intent is for it to be serialized and deserialized by time, with any third parties requiring a specific format expected to handle the complexities themself.

[Zerowalker]

Ah I see, well that explains my issues.

Thanks a lot for helping out and clarifying:)!