rest-east-extensions.cs

public static void AddDefaultEndpoint<T>(this IServiceCollection services, string serviceName) where T : class
{
    var clientName = typeof(T).ToString();
    var options = ConfigureOptions(services);

    ConfigureDefaultClient(services, clientName, serviceName, options);

    ConfigureForwarder<T>(services, clientName);
}

private static RestEaseOptions ConfigureOptions(IServiceCollection services)
{
    IConfiguration configuration;
    using (var serviceProvider = services.BuildServiceProvider())
    {
        configuration = serviceProvider.GetService<IConfiguration>();
    }

    services.Configure<RestEaseOptions>(configuration.GetSection("restEase"));

    return configuration.GetOptions<RestEaseOptions>("restEase");
}

public static void ConfigureDefaultClient(IServiceCollection services, string clientName, string serviceName, RestEaseOptions options)
{
    services.AddHttpClient(clientName, client =>
    {
        var service = options.Services.SingleOrDefault(s => s.Name.Equals(serviceName, StringComparison.InvariantCultureIgnoreCase));
        if (service == null)
        {
            throw new RestEaseServiceNotFoundException($"RestEase service: '{serviceName}' was not found.",
                serviceName);
        }

        client.BaseAddress = new UriBuilder
        {
            Scheme = service.Scheme,
            Host = service.Host,
            Port = service.Port
        }.Uri;
    });
}

public static void ConfigureForwarder<T>(IServiceCollection services, string clientName) where T : class
{
    services.AddTransient<T>(c => new RestClient(c.GetService<IHttpClientFactory>().CreateClient(clientName))
    {
        RequestQueryParamSerializer = new QueryParamSerializer()
    }.For<T>());
}