Swashbuckle(Swagger)中的默认模型示例

Default model example in Swashbuckle (Swagger)

我是 运行 ASP WebAPI 2 并成功安装了 Swashbuckle。我想弄清楚如何定义默认架构值是什么?

例如,在 Swagger 现场演示站点上,他们将 pet 的默认值更改为 "doggie"。他们还定义了状态的允许值。 (Live Demo)

我按照这个 link:

上的内容设法使它正常工作

https://github.com/domaindrivendev/Swashbuckle/issues/69#issuecomment-53953785

简而言之,这是需要做的事情:

  1. 创建 classes SwaggerDefaultValue 和 AddDefaultValues,如 link 中所述。我所做的一些更改:

    public class SwaggerDefaultValue : Attribute
    {
        public string Name { get; set; }
        public string Value { get; set; }
    
        public SwaggerDefaultValue(string value)
        {
            this.Value = value;
        }
    
        public SwaggerDefaultValue(string name, string value) : this(value)
        {
            this.Name = name;
        }
    }
    
    public class AddDefaultValues : IOperationFilter
    {
        public void Apply(Operation operation, SchemaRegistry schemaRegistry, ApiDescription apiDescription)
        {
            IDictionary<string, object> parameterValuePairs =
            GetParameterValuePairs(apiDescription.ActionDescriptor);
    
            foreach (var param in operation.parameters)
            {
                var parameterValuePair = parameterValuePairs.FirstOrDefault(p => p.Key.IndexOf(param.name, StringComparison.InvariantCultureIgnoreCase) >= 0);
                param.@default = parameterValuePair.Value;
            }
        }
    
        private IDictionary<string, object> GetParameterValuePairs(HttpActionDescriptor actionDescriptor)
        {
            IDictionary<string, object> parameterValuePairs = new Dictionary<string, object>();
    
            foreach (SwaggerDefaultValue defaultValue in actionDescriptor.GetCustomAttributes<SwaggerDefaultValue>())
            {
                parameterValuePairs.Add(defaultValue.Name, defaultValue.Value);
            }
    
            foreach (var parameter in actionDescriptor.GetParameters())
            {
                if (!parameter.ParameterType.IsPrimitive)
                {
                    foreach (PropertyInfo property in parameter.ParameterType.GetProperties())
                    {
                        var defaultValue = GetDefaultValue(property);
    
                        if (defaultValue != null)
                        {
                             parameterValuePairs.Add(property.Name, defaultValue);
                        }
                    }
                }
            }
    
            return parameterValuePairs;
        }
    
        private static object GetDefaultValue(PropertyInfo property)
        {
            var customAttribute = property.GetCustomAttributes<SwaggerDefaultValue>().FirstOrDefault();
    
            if (customAttribute != null)
            {
                return customAttribute.Value;
            }
    
            return null;
        }
    }
    
    1. 编辑您的 SwaggerConfig 并将 AddDefaultValues class 添加到 OperationFilters:

      GlobalConfiguration.Configuration
          .EnableSwagger(c => {
                ...
                c.OperationFilter<AddDefaultValues>()
                ...
           });
      
    2. 现在对于我想要默认值的参数,我只需添加以下内容:

      public IHttpActionResult Put([FromBody]Pet pet)
      {
         ...
         return Ok();
      }
      
      public class Pet {
          [SwaggerDefaultValue("doggie")]
          public string Name { get; set; }
      
          [SwaggerDefaultValue("available")]
          public string Status;
      
          ...
      }
      

好吧,vgaspar.trivix 的代码对我来说并不完全适用,没有为架构设置默认值。我也得到了 NullPointerException。我设法通过编辑 Apply 方法使其按预期工作,并像这样操作 schemaRegistry:

public void Apply(Operation operation, SchemaRegistry schemaRegistry, ApiDescription apiDescription)
{
    if (operation.parameters == null)
        return;
    IDictionary<string, object> parameterValuePairs =
    GetParameterValuePairs(apiDescription.ActionDescriptor);

    foreach (var param in operation.parameters)
    {
        if (param.schema != null && param.schema.@ref != null)
        {
            string schemaName = param.schema.@ref.Split('/').LastOrDefault();
            if (schemaRegistry.Definitions.ContainsKey(schemaName))
                foreach (var props in schemaRegistry.Definitions[schemaName].properties)
                {
                    if (parameterValuePairs.ContainsKey(props.Key))
                        props.Value.@default = parameterValuePairs[props.Key];
                }
        }
        var parameterValuePair = parameterValuePairs.FirstOrDefault(p => p.Key.IndexOf(param.name, StringComparison.InvariantCultureIgnoreCase) >= 0);
        param.@default = parameterValuePair.Value;
    }
}

可以通过实施 ISchemaFilter 并使用以下内容注册它来定义示例模型模式:

httpConfig 
    .EnableSwagger(c =>
         {
             c.SchemaFilter<AddSchemaExamples>()
         });

这里提供了一个示例实现:

public class AddSchemaExamples : ISchemaFilter
{
    public void Apply(Schema schema, SchemaRegistry schemaRegistry, Type type)
    {
        if (type == typeof(Product))
        {
            schema.example = new Product
                {
                    Id = 123,
                    Type = ProductType.Book,
                    Description = "Treasure Island",
                    UnitPrice = 10.0M
                };
        }
    }
}

Source: https://github.com/domaindrivendev/Swashbuckle/issues/162

我知道这个帖子已经很老了,但我想分享我的解决方案,它为 Swagger 示例模式创建了一个自定义构造函数。

在我的模型中:

/// <summary>
/// Supply a custom constructor for Swagger where you can apply defaults to control the example schema.  
/// The constructor must have one parameter of type System.Reflection.ParameterInfo[].
/// Note: Setting a property to null will prevent it from showing in the Swagger example.
/// </summary>System.Reflection.ParameterInfo[].
/// </summary>
public class SwaggerConstructor : Attribute { }

在SwaggerConfig.cs中:

c.SchemaFilter<ApplySchemaVendorExtensions>();

架构扩展:

    public class ApplySchemaVendorExtensions : ISchemaFilter
{
    public void Apply(Schema schema, SchemaRegistry schemaRegistry, Type type)
    {
        ConstructorInfo constructor = type.GetConstructors().FirstOrDefault(c => c.GetCustomAttribute<SwaggerConstructor>() != null);
        if (constructor != null)
        {
            schema.example = constructor.Invoke(new object[] { constructor.GetParameters() });
        }
    }
}

用法:

    [SwaggerConstructor]
    public MyClass(System.Reflection.ParameterInfo[] decoy) : base()
    {
        MyProperty = false;
    }

刚才偶然发现了这个,你也可以在XML文档中设置标签,在我的一个模型中,我已经定义了这个

    /// <summary>
    /// Note content
    /// </summary>
    /// <example>Any text for a note.</example>
    public string Note { get; set; }

选择 "Try It Now"

时,在 swagger 文档中最终看起来像这样

希望对某人有所帮助!

将 .NET 5 与 Swashbuckle.AspNetCore 5.6.3 一起使用,我能让它高效工作的唯一方法是:

public class ExampleDocFilter : ISchemaFilter
{
    public void Apply(OpenApiSchema schema, SchemaFilterContext context)
    {
        string ToCamelCase(string name) => char.ToLowerInvariant(name[0]) + name.Substring(1);
        if (schema.Properties == null) return;

        var setProperties = context.Type.GetProperties().ToList().Where(f => f.GetCustomAttribute<DefaultValueAttribute>() != null).Where(f => schema.Properties.Any(n => n.Key.Equals(ToCamelCase(f.Name)))).ToDictionary(f => f, f => f.GetCustomAttribute<DefaultValueAttribute>());
        foreach (var prop in setProperties) schema.Properties[ToCamelCase(prop.Key.Name)].Example = OpenApiAnyFactory.CreateFor(schema.Properties[ToCamelCase(prop.Key.Name)], prop.Value.Value);

    }
}

要使用它 - 在您的 startup.cs:

services.AddSwaggerGen(swagger => {
  ...
  swagger.SchemaFilter<ExampleDocFilter>(); 
});