I have created a HttpClient for "DemoMicroService" with Typed Client through IHttpClientFactory. I want to use an interceptor "DemoMicroInterceptor" defined by Castle DynamicProxy to intercept all methods call details (whenever methods 1 & 2 are called by the application service or other microservices) in "DemoMicroService".
How to register Castle DynamicProxy Interceptor with Typed Client in C#?
"DemoMicroService.cs":
public class DemoMicroService: IDemoMicroService
{
private readonly HttpClient _httpClient;
public DemoMicroService(HttpClient httpClient)
{
_httpClient = httpClient;
}
public async Task<XXXDto> Method1(int abc)
{
//Method1 Implementation
}
public async Task<XXXDto> Method2(int edf)
{
//Method2 Implementation
}
}
"DemoMicroInterceptor.cs":
public class DemoMicroInterceptor: IInterceptor
{
public DemoMicroInterceptor()
{
}
public void Intercept(IInvocation invocation)
{
// Log the method name and input parameters
var methodName = invocation.Method.Name;
var inputParams = string.Join(",", invocation.Arguments.Select(a => a.ToString()));
Debug.WriteLine($"Calling method {methodName} with parameters: {inputParams}");
// Invoke the original method
invocation.Proceed();
// Log the return value
var returnValue = invocation.ReturnValue;
Debug.WriteLine($"Method {methodName} returned: {returnValue}");
}
}
Typed Client is defined under "HttpApiHostModule.cs":
private void ConfigureHttpClient(ServiceConfigurationContext context)
{
context.Services.AddHttpClient<DummyJsonService>(httpClient =>
{
httpClient.BaseAddress = new Uri("https://dummyjson.com/");
});
}
I know the current configuration in "HttpApiHostModule.cs" can not make the interceptor recognize which microservice should be intercepted. But I have searched online and no similar approach is found.
I have also followed the code in "https://gist.github.com/tiagocesar/c5c65d91e1d609e361c347350e26521c", which fails.