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#[derive(Debug, Eq, PartialEq, PartialOrd, Ord, Hash)]
#[cfg_attr(
feature = "utoipa",
derive(utoipa::ToSchema, serde::Deserialize, serde::Serialize),
schema(example = "v0"),
serde(rename_all = "camelCase")
)]
pub enum Version {
V0,
}
#[cfg(feature = "axum")]
mod request {
use super::*;
use axum::RequestPartsExt;
use axum::extract::{FromRequestParts, Path};
use axum::http::StatusCode;
use axum::http::request::Parts;
use axum::response::{IntoResponse, Response};
use std::collections::HashMap;
impl<S> FromRequestParts<S> for Version
where
S: Send + Sync,
{
type Rejection = Response;
async fn from_request_parts(
parts: &mut Parts,
_state: &S,
) -> Result<Self, Self::Rejection> {
let params: Path<HashMap<String, String>> =
parts.extract().await.map_err(IntoResponse::into_response)?;
let version = params
.get("apiVersion")
.ok_or_else(|| (StatusCode::NOT_FOUND, "version param missing").into_response())?;
match version.as_str() {
"v0" => Ok(Version::V0),
_ => Err((StatusCode::NOT_FOUND, "unknown version").into_response()),
}
}
}
}
#[cfg(test)]
mod tests {
use super::*;
use axum::{
Router,
body::Body,
http::{Request, StatusCode},
routing::get,
};
use tower::ServiceExt;
async fn handler(version: Version) -> &'static str {
match version {
Version::V0 => "ok",
}
}
async fn check(endpoint: &str, expected: StatusCode) {
let app = app();
let response = app
.oneshot(
Request::builder()
.uri(endpoint)
.body(Body::empty())
.unwrap(),
)
.await
.unwrap();
assert_eq!(expected, response.status());
}
fn app() -> Router {
Router::new().route("/{apiVersion}/test", get(handler))
}
#[tokio::test]
async fn valid_version_v0() {
check("/v0/test", StatusCode::OK).await
}
#[tokio::test]
async fn unknown_version() {
check("/v1/test", StatusCode::NOT_FOUND).await
}
#[tokio::test]
async fn missing_version_param() {
check("/test", StatusCode::NOT_FOUND).await
}
}
|
