Crediantials in Yarp

[mayuriswan]

What should we add or change to make your life better?

Why is this important to you?

hey i m trying to pass some credentials in the request header to auto authenticate to another power Pi server but it keeps asking me for credentials
`using System.Net;
using System.Net.Http.Headers;
using System.Text;

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddReverseProxy()
.LoadFromConfig(builder.Configuration.GetSection("ReverseProxy"))
.ConfigureHttpClient((_, handler) => handler.ActivityHeadersPropagator = null);

var app = builder.Build();
app.UseMiddleware();

app.MapReverseProxy();

app.UseMiddleware();

app.Run(); `

[Tratcher]

How are you setting the credentials? (Don't show us the actual credentials 😆).

I suggest adding the header directly to the outgoing HttpRequestMessage using a request transform.
https://microsoft.github.io/reverse-proxy/articles/transforms.html#addrequesttransform

reverse-proxy/samples/ReverseProxy.Transforms.Sample/Startup.cs

Lines 48 to 55 in 27554a3

	transformBuilderContext.AddRequestTransform(async transformContext =>
	{
	// AuthN and AuthZ will have already been completed after request routing.
	var ticket = await transformContext.HttpContext.AuthenticateAsync("token");
	var tokenService = transformContext.HttpContext.RequestServices.GetRequiredService<TokenService>();
	var token = await tokenService.GetAuthTokenAsync(ticket.Principal);
	transformContext.ProxyRequest.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token);
	});