When using nest(some_path, sub_router);, it is impossible to distinguish the trailing / in path.

[xb284524239]

• I have looked for existing issues (including closed) about this

Bug Report

When using nest(some_path, sub_router);, it is impossible to distinguish the trailing / in path.

Version

0.8

Platform

All.

Crates

axum

Description

I tried this code:

    let r1 = Router::new()
        .route("", get(index_page))    // This line of code will cause a compilation error unless it is commented out.
        .route("/", get(index_page))
        .route("/add", get(add_page))
        .route("/list", get(list_page));
    Router::new().nest("/Mall", r1).fallback(get(not_found))

I expected to see this happen:

// http://127.0.0.1/Mall            status: 200, body: "Hello, World!"
// http://127.0.0.1/Mall/           status: 200, body: "Hello, World!"

Instead, this happened:

// http://127.0.0.1/Mall            status: 200, body: "Hello, World!"
// http://127.0.0.1/Mall/           status: 404, body: Page Not Found!

Simply put, I hope that when nesting sub-routes, it can correctly distinguish between two cases: http://127.0.0.1/Mall and http://127.0.0.1/Mall/. However, currently, the Axum framework can only recognize the case of http://127.0.0.1/Mall.

[mladedav]

This is a duplicate of #2659.