C#•2mo ago

✅ OpenApi generation

I have following class generated from swagger

[System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "13.18.2.0 (NJsonSchema v10.8.0.0 (Newtonsoft.Json v11.0.0.0))")]
public partial class RandomSearchDto
{
    [Newtonsoft.Json.JsonProperty("city", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
    public string City { get; set; }

    [Newtonsoft.Json.JsonProperty("country", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
    public string Country { get; set; }

    [Newtonsoft.Json.JsonProperty("createdAfter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
    public System.DateTimeOffset CreatedAfter { get; set; }

    [Newtonsoft.Json.JsonProperty("createdBefore", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
    public System.DateTimeOffset CreatedBefore { get; set; }
...
}

[System.CodeDom.Compiler.GeneratedCode("NJsonSchema", "13.18.2.0 (NJsonSchema v10.8.0.0 (Newtonsoft.Json v11.0.0.0))")]
public partial class RandomSearchDto
{
    [Newtonsoft.Json.JsonProperty("city", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
    public string City { get; set; }

    [Newtonsoft.Json.JsonProperty("country", Required = Newtonsoft.Json.Required.Default, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
    public string Country { get; set; }

    [Newtonsoft.Json.JsonProperty("createdAfter", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
    public System.DateTimeOffset CreatedAfter { get; set; }

    [Newtonsoft.Json.JsonProperty("createdBefore", Required = Newtonsoft.Json.Required.DisallowNull, NullValueHandling = Newtonsoft.Json.NullValueHandling.Ignore)]
    public System.DateTimeOffset CreatedBefore { get; set; }
...
}

My issue is that when I create an instance of RandomSearchDto like this -> var searchBody = new RandomSearchDto();, the CreatedAfter and CreatedBefore properties have a default value (because they are not nullable). How can I generate this so that the DateTimeOffsets are generated as nullable?

16 Replies

LifeOfVio•2mo ago

RandomSearchDto is sent as a body to a post endpoint. I don't wan't to specify them in this example but the default value gets send obviously

Bailey•2mo ago

Hi, There are multiple options - you could make the property nullable usin a ? - you could configure the database (read EF to see how). and tell it is nullable

LifeOfVio•2mo ago

I think you misunderstood something. I am consuming an API. I do not have access to any DB or something. I have a openapi definition that generates a c# client for me /GenerateOptionalPropertiesAsNullable:true was the solution

Unknown User•2mo ago

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LifeOfVio•2mo ago

I can't, right? it is done via the service reference stuff that uses Newtonsoft.Json

Unknown User•2mo ago

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LifeOfVio•2mo ago

@TeBeCo I am using NSwag that only supports Newtonsoft.Json to my knowledge

LifeOfVio•2mo ago

see https://github.com/RicoSuter/NSwag/issues/2243

GitHub

Epic: Support System.Text.Json · Issue #2243 · RicoSuter/NSwag

A: Use System.Text.Json in generated C# models (DTOs): NJsonSchema 90%: RicoSuter/NJsonSchema#1013 NSwag DONE: Use System.Text.Json serializer in ReadObjectResponseAsync (client generator) B: Use S...

Unknown User•2mo ago

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reacher•2mo ago

Hmm I'm not sure because I never generated C# models, only TS

Unknown User•2mo ago

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LifeOfVio•2mo ago

I dont own the code

Unknown User•2mo ago

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reacher•2mo ago

You can edit the client templates to eliminate newtonsoft Everything is templated

Unknown User•2mo ago

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reacher•2mo ago

Genius!

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