app.MapFallback regex pattern exclusion

beginnerasp.net

Hello, we serve frontends (angular) from our ASP.NET app, we use app.MapFallback() to handle that.
But we also use OpenID login, and callbacks (inside /api/ path) are not registered as endpoints, so, the MapFallback serve frontend files for these callbacks.

I've added a regex route pattern for the MapFallback, to avoid handling /api/ routes, it works but the root path is not handled by the MapFallback.

I don't really know what I need to change on my regex to handle the root path.

Code here :

app.MapFallback("{*path:regex(^(?!api).*$)}", async context =>
{
    var path = context.Request.Path;
    string file;

    if (path.StartsWithSegments("/management"))
    {
        file = Path.Combine(builder.Environment.WebRootPath, "management", "browser", "index.html");
    }
    else
    {
        file = Path.Combine(builder.Environment.WebRootPath, "vote", "browser", "index.html");
    }

    var html = await File.ReadAllTextAsync(file);
    context.Response.ContentType = "text/html";
    await context.Response.WriteAsync(html);
}).ShortCircuit();

app.MapFallback("{*path:regex(^(?!api).*$)}", async context =>
{
    var path = context.Request.Path;
    string file;

    if (path.StartsWithSegments("/management"))
    {
        file = Path.Combine(builder.Environment.WebRootPath, "management", "browser", "index.html");
    }
    else
    {
        file = Path.Combine(builder.Environment.WebRootPath, "vote", "browser", "index.html");
    }

    var html = await File.ReadAllTextAsync(file);
    context.Response.ContentType = "text/html";
    await context.Response.WriteAsync(html);
}).ShortCircuit();

Thanks for the help

app.MapFallback regex pattern exclusion

beginnerasp.net

app.MapFallback("{*path:regex(^(?!api).*$)}", async context =>
{
    var path = context.Request.Path;
    string file;

    if (path.StartsWithSegments("/management"))
    {
        file = Path.Combine(builder.Environment.WebRootPath, "management", "browser", "index.html");
    }
    else
    {
        file = Path.Combine(builder.Environment.WebRootPath, "vote", "browser", "index.html");
    }

    var html = await File.ReadAllTextAsync(file);
    context.Response.ContentType = "text/html";
    await context.Response.WriteAsync(html);
}).ShortCircuit();

app.MapFallback("{*path:regex(^(?!api).*$)}", async context =>
{
    var path = context.Request.Path;
    string file;

    if (path.StartsWithSegments("/management"))
    {
        file = Path.Combine(builder.Environment.WebRootPath, "management", "browser", "index.html");
    }
    else
    {
        file = Path.Combine(builder.Environment.WebRootPath, "vote", "browser", "index.html");
    }

    var html = await File.ReadAllTextAsync(file);
    context.Response.ContentType = "text/html";
    await context.Response.WriteAsync(html);
}).ShortCircuit();

Thanks for the help

app.MapFallback regex pattern exclusion

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