I am able to integrate the Swagge UI in my web api using Swashbuckle. I also want to explore the swagger codegen feature. Can somebody help in - how I can integrate swagger code
It seems like you just want to generate C# from the OpenApi specification (your Swagger implementation provides the input) of your API.
To generate code (e.g. C#) from the OpenApi spec file of your API, you can do something like this:
java -jar .\openapi-generator-cli-5.0.0-beta3.jar generate -i https://localhost:xxxx/api/v1/swagger.json -g csharp
You have to download the OpenApi Generator Jar. Alternatively you can upload your code to a web generator. But I would always run this locally; you never know where your code ends up.