Invalid JSON output

[christopheblin]

If you have a double property with an example in one of your models, the swagger.json is invalid JSON if the culture is not en-US

class MyDto 
{ 
    /// <summary>
    ///   Test
    /// </summary>
    /// <example>84420.01</example>
    public double? Test { get; set; }
}

JSON output :

     "test": {
        "type": "number",
        "description": "Test",
        "format": "double",
        "nullable": true,
        "example": 84420,01
      },

In order for it to work, I needed this hack :

public static void GenerateSwaggerFile(this IHost app, string url, string apiVersion = "v1", string outputJsonFilePath = "swagger.json")
{
    //super hacky way in order to generate correct examples for double
    //see https://stackoverflow.com/q/76810078/1545567
    CultureInfo.CurrentCulture = CultureInfo.InvariantCulture;
    CultureInfo.CurrentUICulture = CultureInfo.InvariantCulture;

    var swaggerProvider = app.Services.GetRequiredService<ISwaggerProvider>();
    var swagger = swaggerProvider.GetSwagger(apiVersion);
    swagger.Servers = new[] { new OpenApiServer { Url = url } };
    using var streamWriter = File.CreateText(outputJsonFilePath);
    var writer = new OpenApiJsonWriter(streamWriter);
    swagger.SerializeAsV3(writer);
}

[Havunen]

This is fixed in DotSwashbuckle, can you test using it please.
https://github.com/Havunen/DotSwashbuckle
https://www.nuget.org/packages/DotSwashbuckle.AspNetCore

[martincostello]

Proposed fix in #2726