How can I send URL parameter in ASP.NET Core Web API parameters

Question

I wrote this code in a C# ASP.NET Core Web API project:

[HttpGet]
[Route("GetShortURL/{_url}/{tokenPass}")]
[ApiExplorerSettings(GroupName = "ShortURL")]
public ActionResult<ServiceResult<string>> GetShortURL(string _url, string tokenPass)

When I enter this parameter as _url, I get an error:

Error: Not Found

https://github.com/VahidN/DNTPersianUtils.Core

http://...//GetShortURL/https%3A%2F%2Fgithub.com%2FVahidN%2FDNTPersianUtils.Core/TokenPass

How can I call this API with the first Web URL parameter? when i change the [Route("GetShortURL/{_url}/{tokenPass}")] to [Route("GetShortURL")] the problem was solved but i want to send query by / not by ? for example, i want to call API like this :

1- http://..../GetShortURL/_UrlParam/_TokenPassParam

not like below :

2- http://..../GetShortURL?_url=_urlParam&tokenPass=_TokenPassParam

the second way works fine but I want first way to work correctly when i pass an URL like this

https%3A%2F%2Fgithub.com%2FVahidN%2FDNTPersianUtils.Core

can anyone help me?

no , i define it in attribute ... [Route("GetShortURL/{_url}/{tokenPass}")] — Seyed Morteza Mousavifar
– Seyed Morteza Mousavifar, Commented Jul 4, 2022 at 12:13
Please edit the question to add any extra detail/clarity rather than in the comments. — phuzi
– phuzi, Commented Jul 4, 2022 at 13:49

mahooresorkh · Accepted Answer · 2022-07-19 07:26:39Z

2

First approach: Pass the params you want as query string and then change the method like below:

[HttpGet("GetShortURL")]
[ApiExplorerSettings(GroupName = "ShortURL")]
public ActionResult<ServiceResult<string>> GetShortURL(string _url, string tokenPass)

Then For extracting the different parts of the url (protocol, domain name, path and query string), use the code below (path is an array separated by slash):

try
{
    var decodedUrl = System.Web.HttpUtility.UrlDecode(_url);
    Uri uri = new Uri(decodedUrl);    
    var scheme = uri.Scheme;            
    var host = uri.Host;
    var absolutePathSeperatedBySlash = uri.AbsolutePath.Split('/').Skip(1).ToList();
    var query = uri.Query;
    // rest of the code ...
     
}
catch (Exception ex)
{
    //...
}

Second approach:

If you want it to be sent as a url parameter, first you have to encode the value of _url with encodeURIComponent() in javascript, to make sure that some special characters like , / ? : @ & = + $ # are changed.

Then:

[HttpGet("GetShortURL/{_url}/{tokenPass}")]
[ApiExplorerSettings(GroupName = "ShortURL")]
public ActionResult<ServiceResult<string>> GetShortURL(string _url, string tokenPass)

The rest is just like the method body of the first approach.

edited Jul 19, 2022 at 7:26

answered Jul 4, 2022 at 15:56

mahooresorkh

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2 Comments

Seyed Morteza Mousavifar Over a year ago

thank you - I think that I can't say my question correctly--- so I edit that

mahooresorkh Over a year ago

I edited the answer based on what you asked, hope it is useful.

Yiyi You · Accepted Answer · 2022-07-05 04:14:12Z

0

With the following url

http://...//GetShortURL/https%3A%2F%2Fgithub.com%2FVahidN%2FDNTPersianUtils.Core/TokenPass

The value of _url will be:

If you want to convert it to a correct url,you needs to replace %2F with / in GetShortURL:

var url = _url.Replace("%2F","/");

answered Jul 5, 2022 at 4:14

Yiyi You

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3 Comments

Seyed Morteza Mousavifar Over a year ago

thank you but this is not the answer of my question...

Yiyi You Over a year ago

You can use the second way to pass url and replace %2F with /.

Seyed Morteza Mousavifar Over a year ago

this URL https%3A%2F%2Fgithub.com%2FVahidN%2FDNTPersianUtils.Core automatically converted to github.com/FVahidN/FDNTPersianUtils.Core and i don't need to use replace method .. . my question is that when I use the first way this can not call my API

Serge · Accepted Answer · 2022-07-05 17:32:45Z

0

just make parameters to be optional

[HttpGet("GetShortURL/{_url?}/{tokenPass?}")]
public ActionResult<ServiceResult<string>> GetShortURL(string _url, string tokenPass)

in this case you can call the action without any parameters, with one parameter or with two parameters

answered Jul 5, 2022 at 17:32

Serge

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