/// <summary>
/// Builds the <see cref="WebApplication"/>.
/// </summary>
/// <returns>A configured <see cref="WebApplication"/>.</returns>
public WebApplication Build()
{
// ConfigureContainer callbacks run after ConfigureServices callbacks including the one that adds GenericWebHostService by default.
// One nice side effect is this gives a way to configure an IHostedService that starts after the server and stops beforehand.
_hostApplicationBuilder.Services.Add(_genericWebHostServiceDescriptor);
Host.ApplyServiceProviderFactory(_hostApplicationBuilder);
_builtApplication = new WebApplication(_hostApplicationBuilder.Build());
return(_builtApplication);
}
public void DefaultConfigIsMutable()
{
HostApplicationBuilder builder = CreateEmptyBuilder();
builder.Configuration["key1"] = "value1";
using IHost host = builder.Build();
var config = host.Services.GetRequiredService <IConfiguration>();
config["key2"] = "value2";
Assert.Equal("value1", config["key1"]);
Assert.Equal("value2", config["key2"]);
}
