[Bug] Matching route parameters to complex object breaks Swagger UI

Swagger UI:

The {id} does not get replaced with the string when executing the request.

When manually replacing and doing the GET request it works.

I found #513 which kind of relates to this. But it is more like the feature request for this.

[ajensen11]

This is still an issue.

When using SwaggerUI and the route parameter is a different case than the model’s property, then “Try It Out” fails to serialize. This works works correctly outside of SwaggerUI (e.g. Postman, HttpClients)

.. api/persons/{id}

UpdatePerson([FromRoute] Person person) { }

class Person
{
   public int Id { get; set; }
}

Debug error: “System.ArgumentException: ‘{id} is not a valid value for Int32. (Parameter ‘value’)’”

Tried and does not work:

• JsonProperty("id")
• [System.Text.Json.Serialization.JsonPropertyName("id")]

Changing the route to be ../person/{**Id**} works (capitalizing the parameter), but I would rather not make this change just to fix an issue with NSwag’s SwaggerUI implementation.

[youngcm2]

I am experiencing the same thing with a Mongo ObjectId.

I have tried adding TypeMappers and SerializationSettings