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# [Serde][serde] support for the HTTP crate
Adds ability to serialize and deserialize types from the [HTTP][http] crate.
If you want to serialize `Request` or `Response`, use `into_parts()` and serialize their parts, and then rebuild them using their `Builder`.
[serde]: https://lib.rs/serde
[http]: https://lib.rs/http
## Usage
You must annotate fields with `#[serde(with = "http_serde::<appropriate method>")]`.
```rust
# use http::{*, uri::*};
#[derive(serde::Serialize, serde::Deserialize)]
struct MyStruct {
#[serde(with = "http_serde::method")]
method: Method,
#[serde(with = "http_serde::status_code")]
status: StatusCode,
#[serde(with = "http_serde::uri")]
uri: Uri,
#[serde(with = "http_serde::header_map")]
headers: HeaderMap,
#[serde(with = "http_serde::authority")]
authority: Authority,
}
```
There's also support for the types wrapped in an `Option`. To use it, change the `with` attribute prefix from `http_serde::` to `http_serde::option::`.
```rust
# use http::{*, uri::*};
#[derive(serde::Serialize, serde::Deserialize)]
struct MyStruct {
#[serde(with = "http_serde::option::header_map")]
// ^^^^^^
optional_headers: Option<HeaderMap>,
}
```
## Requirements
* Rust 1.56 or later.
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