. Symbol Breaks Routing

Question

Currently scratching my head as to why routing to one of my functions is failing.

The route is defined via an attribute:

    [Route("emails/{emailAddress}")]
    [SwaggerResponse(HttpStatusCode.OK, null, typeof(EmailResponse))]
    public async Task<IHttpActionResult> GetEmail(string emailAddress)

This works fine if I pass in normal text, i.e. "abc". It hits the route as expected. If I pass in an actual email address: "[email protected]", I get a 404 back and the endpoint is not hit. It seems that the . symbol is breaking the pattern matching and I have no idea why currently.

I've tried a bunch of different things, including adding RouteDebugger, changed the parameter type to object instead of a string, but nothing seems to work and I haven't been able to track down any clues as to why.

Edit:

Seems that enclosing my parameter in / works. So if the URL ends up being

email/[email protected]/ it works

vs

email/[email protected]

which does not work.

Still have no idea what is actually causing this problem though.

Answer 1

In asp.net core for such things I use asterisk (*) before the route parameter, by this way you can pass any special character into the route

[Route("emails/{*emailAddress}")] //added *
[SwaggerResponse(HttpStatusCode.OK, null, typeof(EmailResponse))]
public async Task<IHttpActionResult> GetEmail(string emailAddress)

But note when you are using * it can't possible to add another route parameter after * for example

This isn't work

[Route("emails/{*emailAddress}/{anther}")]

But this is ok:

[Route("emails/{other}/{*emailAddress}")]