public static IServiceCollection AddHttpApi <TConfiguration, TContract, TService>(this IServiceCollection services)
where TConfiguration : class, IHttpApiConfiguration, new()
where TContract : class
where TService : class, TContract
{
if (services == null)
{
throw new ArgumentNullException(nameof(services));
}
services.AddTransient <TContract>(sp =>
{
var(httpClient, _) = BuildHttpClient <TConfiguration>(sp);
return((TContract)ActivatorUtilities.CreateInstance <TService>(sp, httpClient));
});
services.AddTransient <IStatusEndpointDependency>(sp =>
{
var(httpClient, typedConfiguration) = BuildHttpClient <TConfiguration>(sp);
var httpApiStatusEndpointDependency = new HttpApiStatusEndpointDependency(httpClient, typedConfiguration);
if (typedConfiguration is IHttpApiWithCircuitBreaking httpApiWithCircuitBreaking)
{
var circuitBreakerManager = sp.GetRequiredService <ICircuitBreakerManager>();
return(new CircuitBreakingStatusEndpointDependency <HttpStatusCode>(httpApiStatusEndpointDependency, circuitBreakerManager.GetState(httpApiWithCircuitBreaking.CircuitBreakerPolicy)));
}
return(httpApiStatusEndpointDependency);
});
return(services);
}
public async Task setup_scenario()
{
var httpClient = new StubHttpClient <string>
{
Response = "Hey!"
};
var testSubject = new HttpApiStatusEndpointDependency(httpClient, new HttpApiConfiguration {
Name = "downstreamApiName"
});
_result = await testSubject.GetStatusAsync(CancellationToken.None);
}
public async Task setup_scenario()
{
var httpClient = new StubHttpClient <Status>
{
BaseAddress = new Uri("http://stubbaseaddress"),
Exception = new HttpClientTimeoutException(HttpMethod.Get, new Uri("http://stubbaseaddress/.status"))
};
var testSubject = new HttpApiStatusEndpointDependency(httpClient, new HttpApiConfiguration {
Name = "expectedDependencyName"
});
_result = await testSubject.GetStatusAsync(CancellationToken.None);
}
public async Task setup_scenario()
{
var httpClient = new StubHttpClient <Status>
{
BaseAddress = new Uri("http://stubbaseaddress"),
StatusCode = HttpStatusCode.InternalServerError
};
var testSubject = new HttpApiStatusEndpointDependency(httpClient, new HttpApiConfiguration {
Name = "dependencyName"
});
_result = await testSubject.GetStatusAsync(CancellationToken.None);
}
public async Task setup_scenario()
{
var httpClient = new StubHttpClient <Status>
{
BaseAddress = new Uri("http://stubbaseaddress"),
Latency = TimeSpan.FromSeconds(3)
};
var testSubject = new HttpApiStatusEndpointDependency(httpClient, new HttpApiConfiguration {
Name = "expectedDependencyName"
});
_result = await testSubject.GetStatusAsync(new CancellationTokenSource(20).Token);
}
