Article typo or issue?

[damienaicheh]

Hi Daniel,

I'm back for another question, in the article https://daniel-krzyczkowski.github.io/Cars-Island-ASP-NET-Core-API-Integration-With-Azure-Cosmos-DB/ you use TryAddSingleton to inject the dataservices.

In the next article : https://daniel-krzyczkowski.github.io/Cars-Island-ASP-NET-Core-API-Integration-With-Azure-Storage-Accont/ you are in the same case and you mention the AddSingleton
I have used services.AddSingleton with implementationFactory instead of just using services.AddSingleton.

Why not using the TryAddSingleton in both? is it a typo or a specific needs for storage service?

Thanks!

[Daniel-Krzyczkowski]

Thank you for catching this one. In general I try to use TryAddSingleton in the source code - inconsistency is by mistake.
TryAddSingleton appends the registration to the collection only when there is no registration for the given service type yet in the DI container.

[damienaicheh]

Ok, thanks for your answer!