How can i configure ocelot programmatically?

[cizu64]

I get this error message when trying to configure ocelot programmatically

Ocelot.Responder.Middleware.ResponderMiddleware[0]
      requestId: 0HN8B1C7OOUES:00000001, previousRequestId: No PreviousRequestId, message: 'Error Code: UnableToFindDownstreamRouteError Message: Failed to match Route configuration for upstream path: /banks, verb: GET. errors found in ResponderMiddleware. Setting error response for request path:/banks, request method: GET'

This is my code

using System.Security.Claims;
using Microsoft.AspNetCore.Mvc.Filters;
using Ocelot.Configuration.File;
using Ocelot.Configuration.Repository;

public class Middleware : IMiddleware
{
    private readonly IFileConfigurationRepository _fileConfigurationRepository;
    public Middleware(IFileConfigurationRepository fileConfigurationRepository)
    {
        _fileConfigurationRepository = fileConfigurationRepository;
    }
    private List<FileRoute> Configuration(string downStreamPathTemplate)
    {
       
    }
    public async Task InvokeAsync(HttpContext context, RequestDelegate next)
    {
       
        var fileConfig = new FileConfiguration
        {
            Routes = new List<FileRoute>
            {
                new FileRoute
                {
                    DownstreamPathTemplate = "/api/bank/banks",
                    DownstreamScheme = "https",
                    DownstreamHostAndPorts = new List<FileHostAndPort>
                    {
                        new FileHostAndPort { Host = "google.com", Port = 443 }
                    },
                    DownstreamHttpMethod = "GET",
                    UpstreamPathTemplate = "/banks",
                    UpstreamHttpMethod = new List<string> { "GET" }
                }
            },
            GlobalConfiguration = new FileGlobalConfiguration
            {
                BaseUrl = "https://localhost:7174"
            }
        };


        await _fileConfigurationRepository.Set(fileConfig);
        
        await next.Invoke(context);
    }
}

This is my program.cs

builder.Services.AddOcelot();
builder.Services.AddScoped<Middleware>();
var app = builder.Build();

app.UseHttpsRedirection();
app.UseAuthentication();
app.UseAuthorization();
//await app.UseOcelot().ContinueWith(a => app.UseMiddleware<Middleware>());
await app.UseOcelot();
app.UseMiddleware<Middleware>();
app.Run();