A 502 error means our edge proxy can't reach your application. For .NET Core apps, the most common cause is that the app is not listening on 0.0.0.0 using the PORT environment variable that we inject automatically. Your app must bind to 0.0.0.0:$PORT (not localhost, not a hardcoded port). You can find more details in our troubleshooting guide.

I added this to the program.cs

var port = Environment.GetEnvironmentVariable("PORT");

if (!string.IsNullOrWhiteSpace(port))

{

builder.WebHost.UseUrls($"http://0.0.0.0:{port}");

}

still didnt work

Your app is listening on port 8080 rather than the Railway-provided PORT variable, which means our proxy can't reach it. You can fix this by either redeploying with your updated code that reads $PORT (it doesn't appear to have taken effect yet), or by setting a target port of 8080 on your domain in the service settings.

it finally worked, You are the sun for the dark days and the rain for the dry land