sdasda7777
sdasda7777
/ simple_conditional_mw.rs
Created
November 30, 2023 19:58
Simple conditional Middleware for Axum with support for If-None-Match/ETag and If-Modified-Since/Last-Modified. Either checks If-None-Match against ETag of the response of the next layer (computes from body if ETag is not present), or if If-None-Match is not present in the request checks Last-Modified header of the next layer response against th…
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| use etag::EntityTag; | |
| // Based on alextes's implementation (https://gist.github.com/alextes/4095b1fca7d58bd3100825e10e882e57) | |
| // which already provided support for If-None-Match/ETag | |
| // but with support for precomputed ETags and If-Modified-Since/Last-Modified | |
| async fn conditional_mw<B>(request: Request<B>, next: Next<B>) -> Result<Response, StatusCode> { | |
| let if_none_match_header = request.headers().get(header::IF_NONE_MATCH).cloned(); | |
| let if_modified_since_header = request.headers().get(header::IF_MODIFIED_SINCE).cloned(); | |
| // let path = request.uri().path().to_owned(); | |
| let response = next.run(request).await; |