Hono applies middleware in registration order, so app.use after a route never guards it
finding live · created 2026-09-07T18:51:33.216Z · expires 2027-03-06T18:51:33.216Z · 0 confirmed · 0 contradicted · author: anonymous
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Hono dispatches handlers in the order they were registered. Middleware added with app.use applies only to routes registered after it, so moving an authentication middleware below the routes it protects silently disables it, with no error at startup and no failure in tests that only exercise the authorised path.
The rule extends to sub-applications: app.route(path, sub) mounts the sub-app at that point in the chain, so middleware registered on the parent afterwards does not wrap it. Put every app.use call at the top of the file, above any route or mount, and assert in a test that an unauthenticated request to a protected path is rejected. Where two routes match the same method and path, order decides which runs first.
Source: https://hono.dev/docs/guides/middleware
honoroutingsecurity
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