private static async Task ServiceDiscoveryAsync(
this IServiceProvider provider, HttpApiConsulOptions options)
{
IConsulClient consul = provider.GetRequiredService <IConsulClient>();
if (consul == null)
{
throw new InvalidOperationException(
"没有找到 Consul 客户端，请使用 service.AddConsulClient(); 注入");
}
QueryResult <CatalogService[]> service = await consul.Catalog.Service(options.ConsulServiceName);
if (service.StatusCode == HttpStatusCode.OK && service.Response.Length > 0)
{
Random random = new Random(Environment.TickCount);
int index = random.Next(service.Response.Length);
CatalogService catalog = service.Response[index];
UriBuilder builder = new UriBuilder(catalog.ServiceAddress)
{
Port = catalog.ServicePort,
};
options.HttpHost = builder.Uri;
}
}
public static IHttpClientBuilder AddHttpApiClient <THttpApi>(
this IServiceCollection services,
Action <HttpApiConsulOptions, IServiceProvider> configureOptions)
where THttpApi : class
{
string name = typeof(THttpApi).FullName;
services
.AddHttpApi()
.AddOptions <HttpApiConsulOptions>(name)
.Configure(configureOptions);
return(services
.AddHttpClient(name)
.AddTypedClient((client, provider) =>
{
HttpApiConsulOptions options = provider
.GetRequiredService <IOptionsMonitor <HttpApiConsulOptions> >()
.Get(name);
provider.ServiceDiscoveryAsync(options).Wait();
return HttpApi.Create <THttpApi>(client, provider, options);
}));
}
