/// <summary>
/// Configure external API services that should be made available through the <see cref="IHttpClientFactory"/>.
/// <para>Also configures an <seealso cref="IHealthCheck"/> for the API service.</para>
/// <example>Configuration
/// <code>
/// "ApiServices": [
/// {
/// "Name": "FakeService",
/// "BaseUrl": "https://jsonplaceholder.typicode.com",
/// "HealthCheckUrlPath": "todos/1"
/// }
/// ]
/// </code>
/// <para>Name is used to identify the service in the <see cref="IHttpClientFactory"/>.</para>
/// <para>BaseUrl is used to initialize the HttpClient.</para>
/// <para>HealthCheckUrlPath is used to run the <see cref="IHealthCheck"/>.</para>
/// </example>
/// </summary>
/// <param name="services"></param>
/// <param name="hcBuilder"></param>
private void ConfigureApiServices(IServiceCollection services, IHealthChecksBuilder hcBuilder)
{
var apiServices = Configuration.GetSection(ApiServicesConfigSectionKey).Get <List <ApiService> >() ?? new List <ApiService>();
foreach (var api in apiServices)
{
if (!String.IsNullOrWhiteSpace(api.Name) && !String.IsNullOrWhiteSpace(api.BaseUrl))
{
services.AddHttpClient(api.Name, c =>
{
c.BaseAddress = new Uri(api.BaseUrl);
c.Timeout = TimeSpan.FromSeconds(15);
}).SetHandlerLifetime(TimeSpan.FromMinutes(5));
if (!String.IsNullOrWhiteSpace(api.HealthCheckPath))
{
hcBuilder.AddHttpHealthCheck(api.Name, api.HealthCheckPath);
}
}
}
}