Middleware should ignore specific routes in .net core

Modify your VerifyClientMiddleware to check the request path before performing the API key validation

public class VerifyClientMiddleware
{
    private readonly RequestDelegate _next;

    public VerifyClientMiddleware(RequestDelegate next)
    {
        _next = next;
    }

    public async Task Invoke(HttpContext context)
    {
        // Check if current path is allowed without API key
        if (!_allowedPaths.Contains(context.Request.Path.Value))
        {
            // Perform your existing API key validation logic here (read and check API key)
            // If key is invalid, throw an exception or return appropriate error response
        }

        // Call the next middleware in the pipeline
        await _next(context);
    }
}

private readonly string[] _allowedPaths = new string[] { "/user/authenticate", "/user/register" };

Create a string array or list to store the paths for unrestricted access (login and registration)

Check out this article on how to ignore routes conditionally  

https://codetrojan.com/csharp/asp-net-core-how-to-restrict-specific-routes-from-middleware/

Hi,

Please refer below link. It may be helpful to you. 

https://www.devtrends.co.uk/blog/conditional-middleware-based-on-request-in-asp.net-core

Thanks

Naimish

Probably you are looking for below with some regex

app.UseWhen(context=>!context.Request.Path.Value.ToLower().Trim().Contains(@"/route"), applicationBuilder =>
{
    applicationBuilder.UseMiddleware();
});