Given: api that i have limited influence to in terms of changing, built on net core 2.2. Standart netCore swagger used. Some classes of DTO have fields in it marked with
[System.ComponentModel.DataAnnotations.Required] But for some reasons (which are also discussable)
some methods return objects of this classes with nulls in this fields. Annotation resulted in
"required": [
"given", - this field for example
"family",
"email",
"postCode"
],
"type": "object",
...
in swagger spec which then results in
[Newtonsoft.Json.JsonProperty("given", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
in c# generated code (i'm using nswag studio and c# client with pretty standart settings). And then when i'm trying to get list of such objects from api using generated c# client, if some of such properties have null it obviosly throws newtonsoft deserialization exception. so how we can handle that? I thought of both client side and server side solutions:
1)on server we can configure not to expose info about required to swagger spec.
2) on client we can possibly configure behavior of translating that Required block to Required = Newtonsoft.Json.Required.Default
3) forget about all that and insist so api will not return object with null vaues which properties market Required.
