REFACTORING to MEDIATOR & CQS Pattern | AWS Lambda | ASP NET Core

[@RahulNath]

Hope you liked the video. If you want more details on the step-by-step refactoring process check out the related blog post here www.rahulpnath.com/blog/aws-serverless-refactoring-series/ Do let me know your thoughts and feedback in the comments.

[@MsbowElite]

The website is not working, error 503.

[@RahulNath]

@@MsbowElite Can you try that again - tried the link just now and it looks ok

[@MsbowElite]

@@RahulNath Yeah, now it is fine, thank you.

[@mdabuzar2130]

only I can say, You are the best. No one can touch your feet. Always waiting for your next dhamaal.

[@RahulNath]

I'm honoured. Thank you for the constant motivation! New video hopefully coming out in 2 days 😀

[@MrTouqeerhameed]

Excellent

[@RahulNath]

Thank you so much Touqeer 😀

[@palashsinha6163]

Awesome content! Great explanations! Thanks a lot Rahul. Eagerly waiting for your next video.

[@RahulNath]

Thank you Palash. Happy to see these comments!

[@respectandcare-e7g]

Thank you so much Rahul for all your awesome videos! God bless.

[@RahulNath]

So nice of you Sidhant!

[@srikanthek737]

Simply awesome, very clean explanation, thanks for this video

[@RahulNath]

Glad you liked it!

[@adriano.digiere]

Great video, Rahul. High quality content. Thanks.

[@RahulNath]

Thank you 😀 Do let know if there are other topics you would like to see covered.

[@adriano.digiere]

@@RahulNath Thanks. Perhaps something about TDD.

[@RahulNath]

​@@adriano.digiere Great suggestion! I have a video coming up for testing the project created in this video (but that is not exactly TDD, since it will be written after ). Meanwhile I have a few videos on AutoFixture which is a great library to auto-generate test data. This is something I extensively use and find it useful to write more robust test cases. kzbin.info/aero/PL59L9XrzUa-mItWClbGuMEK5oQpU2onCq Also have a few blogs around the same www.rahulpnath.com/blog/category/autofixture/ Thank you again for your feedback (and do keep them coming!)

[@adriano.digiere]

@@RahulNath I'll check them. Thanks.

[@RahulNath]

@@adriano.digiere Great do let me know how it goes.

[@anuragnair1784]

Thanks a lot Rahul! This is really helpful.

[@RahulNath]

Happy it helps Anurag! Do let know if you have other topics you are looking for around this topic 😀

[@varun6455]

Great Work Rahul, this is top quality code! What would be great to see is how to use Terraform and deploy this API and the DynamoDB into AWS

[@RahulNath]

Noted and thank you for the suggestion Varun!

[@mahansid]

Where the models should reside , should they be business/domain models or should they be kept in DAL ?

[@RahulNath]

Did you get a chance to watch the video on layering kzbin.info/www/bejne/amTJmGeKac55fdk Depending on what the model/dto represents it’ll be in its appropriate layer. Let me know if you have additional questions.

[@sarathbaiju6040]

Hi rahul, I have a question regarding registering depencies. Currently in this video IRepository interface and DynamoDbRepository implement that interface. My question is, imagine we have 2 or more Repositories and we want to implement all the Repository classes to IRepository interface. How we handle this? I mean how to register the dependencies and how to use them in other classes?

[@RahulNath]

The IRepository is a generic interface in this case, with a generic implementation. you can register multiple based on type T - so if you have 2 tables/classes (T) you can register for both as IRepository and IRepository. Does that answer your question?

[@sarathbaiju6040]

@@RahulNath sorry may be my above question is not clear. In a nutshell, Consider you have one interface and 2 classes implementing that interface. How we register that interface in service collection? This is my question.

[@emanuelcordovamontiel1017]

This is amazing! How can call to appsettings.json file from a AWS LAMBDA?

[@RahulNath]

What are you looking to use appsettings.json for ? Have you looked at using Environment variables or ParameterStore/SecretManager etc ? If you can provide some more details on what you are planning to use it for I can suggest.

[@MsbowElite]

The MediatR work properly locally but when I publish it to AWS environment, it crash with error of Register your handlers with the container. Error constructiong handle for...

[@RahulNath]

What exactly is it erroring on trying to create ? Is it any specific AWS resources that you have set up locally ? Or is it the same code I’ve here that you are trying ?

[@MsbowElite]

@@RahulNath Thanks for the answer, it was my fault. I fixed it already.

[@RahulNath]

@@MsbowElite Glad to know you got it working!

[@techpc5453]