How to include custom statements/directive in C# code generated by NSwag?

Question

I generated C# code from a Swagger definition and was wondering if there is a configuration parameter to automatically include using statements in the generated files. I found this link https://github.com/RicoSuter/NSwag/wiki/NSwag-Configuration-Document with config-parameters but none of these seems to make the trick. To be more clear, my file at the moment looks like this at the top:

I would like the autogenerated file to include using statements like this:

Any help or tips are very appretiated.

Answer 1

In your NSwag configuration, you can set:

"openApiToCSharpClient": {
  ...
  "additionalNamespaceUsages": [
    "RDT.Api.DomainModels"
  ],
  ...
  "namespace": "RDT.Api.Repository",
  ...
}

Alternately, NSwagStudio includes an option 'Additional Namespace Usages'.

To keep the settings, you can save your .nswag file for future use