api-version

Axum middleware to rewrite a request such that a version prefix is added to the path. This is based on a set of API versions and an optional "x-api-version" custom HTTP header: if no such header is present, the highest version is used. Yet this only applies to requests the URIs of which pass a filter; others are not rewritten. Also, paths starting with a valid/existing version prefix, e.g. "/v0", are not rewritten.

Example

const API_VERSIONS: ApiVersions<2> = ApiVersions::new([0, 1]);

let app = Router::new()
    .route("/ready", get(ready))
    .route("/api/v0/test", get(ok_0))
    .route("/api/v1/test", get(ok_1));

let mut app = ApiVersionLayer::new("/api", API_VERSIONS).layer(app);

License

This code is open source software licensed under the Apache 2.0 License.