What is the preferred way to register extended service clients with DI?

[aetos382]

I am looking at this document and trying to subclass the service client class to change the behavior of the request pipeline.

I am also using the AddAWSService method as follows to register the service client class with Dependency Injection.

services.AddAWSService<IAmazonS3>();

What is the preferred way to register the extended CustomAmazonS3Client class with DI?

It could simply be registered as follows.

services.AddSingleton<IAmazonS3, CustomAmazonS3Client>();

By default, service clients registered by the AddAWSService method are initialized by the ClientFactory class.
If simply registered with AddSingleton, such initialization will not occur.
I do not want to change or reimplement such initialization logic.

I would like to see methods like the following.

services.AddAWSService<IAmazonS3, CustomAmazonS3Client>();

[aetos382]

I used IRuntimePipelineCustomizer to customize the pipeline instead of creating a derived class.

Then, I created a hosted service that allows us to inject values from DI into the handler by calling RuntimePipelineCustomizerRegistry.Instance.Register in its StartAsync method.

Please let me know if there is a better way.

[normj]

As of today subclass or using the IRuntimePipelineCustomizer are the options. We have on our plan, but no timeline, to implement a plugin system like other AWS SDKs that would be a more formalized extension method.

The danger we have found with the IRuntimePipelineCustomizer mechanism is it relies on knowing the exact sequence including class types of the pipeline. So when we have services update that requires a change to the pipeline that can break the IRuntimePipelineCustomizer registry point. The plugin system would have more of an API contract for extension points. But again we haven't started the work on the plugin system nor have a definitive design.

Can I ask what customizations you are doing or need for the request pipeline?

[aetos382]

Can I ask what customizations you are doing or need for the request pipeline?

I need to use a special RetryPolicy.