How can I pass an encoded url as a path parameter in c#

Question

I am creating a new RESTful API which has an endpoint

GET v1/my-resource/{encoded-url}

When I try and send a message to this endpoint, I get a 404

GET v1/my-resource/%2Fshop%2Fgender-women-category-bags

When I try and send my-url it returns a 200.

GET v1/my-resource/my-url

This is my method:

[ApiController]
[Route("")]
public class GetController : ControllerBase
{
    [HttpGet("v1/my-resource/{url}")]
    public async Task<IActionResult> GetResource(
        [FromRoute, Required] string url)
    {
        return Ok();
    }
}

Can anyone help me understand why I can't pass %2Fshop%2Fgender-women-category-bags as the encoded url?

I wonder if the URL is being decoded by the framework. You could try [HttpGet("v1/my-resource/{**url}")]? — DavidG
– DavidG, Commented Mar 10, 2021 at 13:35
It's a catch-all route, basically everything after /my-resource/ would be included in the url variable. Note, I cannot replicate your problem in my code here. — DavidG
– DavidG, Commented Mar 10, 2021 at 13:50
checking this again, it does look like it worked, it just decoded the string, so I got /shop/gender-women-category-bags. Thanks for the help — chris31389
– chris31389, Commented Mar 10, 2021 at 14:23

Indrit Kello · Accepted Answer · 2021-03-10 13:26:16Z

1

You could try to base64 encode it so it produces a solid sequence and it doesn't confuse the ApiController. Btw. I've tried your solution in a mvc controller and it works, but not in api controller.

answered Mar 10, 2021 at 13:26

Indrit Kello

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1 Comment

chris31389 Over a year ago

its a good idea, but I don't have control over the route. This is already an agreed contract

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