Dispatch.cs

var builder = WebApplication.CreateBuilder(args);
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

builder.Services.AddAuthorization(options =>
{
    options.AddPolicy("DispatchManagerOnly", policy =>
        policy.RequireRole("DispatchManager"));
});

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

app.MapPost("/shipments/assign", () => "Assign shipments to dispatchers logic is here...")
    .RequireAuthorization("DispatchManagerOnly");

app.Run();