是否有一种方法显示所有枚举作为他们的字符串值在swagger而不是他们的int值?
我希望能够提交POST动作，并根据它们的字符串值放置枚举，而不必每次都查看enum。
我尝试了DescribeAllEnumsAsStrings，但服务器然后接收字符串而不是enum值，这不是我们要寻找的。
有人解决了吗?
编辑:
public class Letter
{
[Required]
public string Content {get; set;}
[Required]
[EnumDataType(typeof(Priority))]
public Priority Priority {get; set;}
}
public class LettersController : ApiController
{
[HttpPost]
public IHttpActionResult SendLetter(Letter letter)
{
// Validation not passing when using DescribeEnumsAsStrings
if (!ModelState.IsValid)
return BadRequest("Not valid")
..
}
// In the documentation for this request I want to see the string values of the enum before submitting: Low, Medium, High. Instead of 0, 1, 2
[HttpGet]
public IHttpActionResult GetByPriority (Priority priority)
{
}
}
public enum Priority
{
Low,
Medium,
High
}
对于我们正在寻找的东西，我在其他答案中发现了一些缺点，所以我想我将提供我自己的看法。我们使用ASP。NET Core 3.1与System.Text。Json，但我们的方法与使用的Json序列化器无关。
我们的目标是在ASP。NET Core API以及在Swagger中相同的文档。我们目前正在使用[DataContract]和[EnumMember]，所以方法是从EnumMember值属性中获取小写的值，并全面使用它。
我们的示例枚举:
[DataContract]
public class enum Colors
{
[EnumMember(Value="brightPink")]
BrightPink,
[EnumMember(Value="blue")]
Blue
}
我们将使用Swashbuckle中的EnumMember值，使用缺血滤器，如下所示:
public class DescribeEnumMemberValues : ISchemaFilter
{
public void Apply(OpenApiSchema schema, SchemaFilterContext context)
{
if (context.Type.IsEnum)
{
schema.Enum.Clear();
//Retrieve each of the values decorated with an EnumMember attribute
foreach (var member in context.Type.GetMembers())
{
var memberAttr = member.GetCustomAttributes(typeof(EnumMemberAttribute), false).FirstOrDefault();
if (memberAttr != null)
{
var attr = (EnumMemberAttribute) memberAttr;
schema.Enum.Add(new OpenApiString(attr.Value));
}
}
}
}
}
我们正在使用第三方NuGet包(GitHub repo)来确保这个命名方案也在ASP中使用。净的核心。在ConfigureServices中的Startup.cs中配置它:
services.AddControllers()
.AddJsonOptions(opt => opt.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverterWithAttributeSupport()));
最后，我们需要在Swashbuckle中注册我们的缺血afilter，所以也在ConfigureServices()中添加以下内容:
services.AddSwaggerGen(c => {
c.SchemaFilter<DescribeEnumMemberValues>();
});
我想在. net Core应用程序中使用rory_za的答案，但我必须对其进行一些修改才能使其工作。下面是我为。net Core设计的实现。
我还修改了它，这样它就不会假设底层类型是int，并在值之间使用了新的行，以便于阅读。
/// <summary>
/// Add enum value descriptions to Swagger
/// </summary>
public class EnumDocumentFilter : IDocumentFilter {
/// <inheritdoc />
public void Apply(SwaggerDocument swaggerDoc, DocumentFilterContext context) {
// add enum descriptions to result models
foreach (var schemaDictionaryItem in swaggerDoc.Definitions) {
var schema = schemaDictionaryItem.Value;
foreach (var propertyDictionaryItem in schema.Properties) {
var property = propertyDictionaryItem.Value;
var propertyEnums = property.Enum;
if (propertyEnums != null && propertyEnums.Count > 0) {
property.Description += DescribeEnum(propertyEnums);
}
}
}
if (swaggerDoc.Paths.Count <= 0) return;
// add enum descriptions to input parameters
foreach (var pathItem in swaggerDoc.Paths.Values) {
DescribeEnumParameters(pathItem.Parameters);
// head, patch, options, delete left out
var possibleParameterisedOperations = new List<Operation> {pathItem.Get, pathItem.Post, pathItem.Put};
possibleParameterisedOperations.FindAll(x => x != null)
.ForEach(x => DescribeEnumParameters(x.Parameters));
}
}
private static void DescribeEnumParameters(IList<IParameter> parameters) {
if (parameters == null) return;
foreach (var param in parameters) {
if (param is NonBodyParameter nbParam && nbParam.Enum?.Any() == true) {
param.Description += DescribeEnum(nbParam.Enum);
} else if (param.Extensions.ContainsKey("enum") && param.Extensions["enum"] is IList<object> paramEnums &&
paramEnums.Count > 0) {
param.Description += DescribeEnum(paramEnums);
}
}
}
private static string DescribeEnum(IEnumerable<object> enums) {
var enumDescriptions = new List<string>();
Type type = null;
foreach (var enumOption in enums) {
if (type == null) type = enumOption.GetType();
enumDescriptions.Add($"{Convert.ChangeType(enumOption, type.GetEnumUnderlyingType())} = {Enum.GetName(type, enumOption)}");
}
return $"{Environment.NewLine}{string.Join(Environment.NewLine, enumDescriptions)}";
}
}
然后将它添加到Startup.cs中的ConfigureServices方法中:
c.DocumentFilter<EnumDocumentFilter>();
如果有人感兴趣，我已经修改了代码的工作
.NET CORE 3和Swagger V5
public class SwaggerAddEnumDescriptions : IDocumentFilter
{
public void Apply(OpenApiDocument swaggerDoc, DocumentFilterContext context)
{
// add enum descriptions to result models
foreach (var property in swaggerDoc.Components.Schemas.Where(x => x.Value?.Enum?.Count > 0))
{
IList<IOpenApiAny> propertyEnums = property.Value.Enum;
if (propertyEnums != null && propertyEnums.Count > 0)
{
property.Value.Description += DescribeEnum(propertyEnums, property.Key);
}
}
// add enum descriptions to input parameters
foreach (var pathItem in swaggerDoc.Paths.Values)
{
DescribeEnumParameters(pathItem.Operations, swaggerDoc);
}
}
private void DescribeEnumParameters(IDictionary<OperationType, OpenApiOperation> operations, OpenApiDocument swaggerDoc)
{
if (operations != null)
{
foreach (var oper in operations)
{
foreach (var param in oper.Value.Parameters)
{
var paramEnum = swaggerDoc.Components.Schemas.FirstOrDefault(x => x.Key == param.Name);
if (paramEnum.Value != null)
{
param.Description += DescribeEnum(paramEnum.Value.Enum, paramEnum.Key);
}
}
}
}
}
private Type GetEnumTypeByName(string enumTypeName)
{
return AppDomain.CurrentDomain
.GetAssemblies()
.SelectMany(x => x.GetTypes())
.FirstOrDefault(x => x.Name == enumTypeName);
}
private string DescribeEnum(IList<IOpenApiAny> enums, string proprtyTypeName)
{
List<string> enumDescriptions = new List<string>();
var enumType = GetEnumTypeByName(proprtyTypeName);
if (enumType == null)
return null;
foreach (IOpenApiAny enumOption in enums)
{
if (enumOption is OpenApiString @string)
{
string enumString = @string.Value;
enumDescriptions.Add(string.Format("{0} = {1}", (int)Enum.Parse(enumType, enumString), enumString));
}
else if (enumOption is OpenApiInteger integer)
{
int enumInt = integer.Value;
enumDescriptions.Add(string.Format("{0} = {1}", enumInt, Enum.GetName(enumType, enumInt)));
}
}
return string.Join(", ", enumDescriptions.ToArray());
}
}
ASP。NET Core 3与Microsoft JSON库(System.Text.Json)
在Startup.cs / ConfigureServices ():
services
.AddControllersWithViews(...) // or AddControllers() in a Web API
.AddJsonOptions(options =>
options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter()));
ASP。NET Core 3和Json。NET (Newtonsoft.Json)库
安装Swashbuckle.AspNetCore.Newtonsoft包。
在Startup.cs / ConfigureServices ():
services
.AddControllersWithViews(...)
.AddNewtonsoftJson(options =>
options.SerializerSettings.Converters.Add(new StringEnumConverter()));
// order is vital, this *must* be called *after* AddNewtonsoftJson()
services.AddSwaggerGenNewtonsoftSupport();
ASP。NET Core 2
在Startup.cs / ConfigureServices ():
services
.AddMvc(...)
.AddJsonOptions(options =>
options.SerializerSettings.Converters.Add(new StringEnumConverter()));
Pre-ASP。网络核心
httpConfiguration
.EnableSwagger(c =>
{
c.DescribeAllEnumsAsStrings();
});
我得到了它的工作。net 6 Web API使用以下代码从其他答案在这里:
1 -创建一个DocumentFilter
/// <summary>
/// Add enum value descriptions to Swagger
/// </summary>
public class SwaggerEnumDocumentFilter : IDocumentFilter
{
public void Apply(OpenApiDocument swaggerDoc, DocumentFilterContext context)
{
// add enum descriptions to result models
foreach (var property in swaggerDoc.Components.Schemas)
{
var propertyEnums = property.Value.Enum;
if (propertyEnums is { Count: > 0 })
{
property.Value.Description += DescribeEnum(propertyEnums, property.Key);
}
}
if (swaggerDoc.Paths.Count <= 0)
{
return;
}
// add enum descriptions to input parameters
foreach (var pathItem in swaggerDoc.Paths.Values)
{
DescribeEnumParameters(pathItem.Parameters);
var affectedOperations = new List<OperationType> { OperationType.Get, OperationType.Post, OperationType.Put, OperationType.Patch };
foreach (var operation in pathItem.Operations)
{
if (affectedOperations.Contains(operation.Key))
{
DescribeEnumParameters(operation.Value.Parameters);
}
}
}
}
private static void DescribeEnumParameters(IList<OpenApiParameter> parameters)
{
if (parameters == null) return;
foreach (var param in parameters)
{
if (param.Schema.Reference != null)
{
var enumType = GetEnumTypeByName(param.Schema.Reference.Id);
var names = Enum.GetNames(enumType).ToList();
param.Description += string.Join(", ", names.Select(name => $"{Convert.ToInt32(Enum.Parse(enumType, name))} - {name}").ToList());
}
}
}
private static Type GetEnumTypeByName(string enumTypeName)
{
if (string.IsNullOrEmpty(enumTypeName))
{
return null;
}
try
{
return AppDomain.CurrentDomain
.GetAssemblies()
.SelectMany(x => x.GetTypes())
.Single(x => x.FullName != null
&& x.Name == enumTypeName);
}
catch (InvalidOperationException e)
{
throw new Exception($"SwaggerDoc: Can not find a unique Enum for specified typeName '{enumTypeName}'. Please provide a more unique enum name.");
}
}
private static string DescribeEnum(IEnumerable<IOpenApiAny> enums, string propertyTypeName)
{
var enumType = GetEnumTypeByName(propertyTypeName);
if (enumType == null)
{
return null;
}
var parsedEnums = new List<OpenApiInteger>();
foreach (var @enum in enums)
{
if (@enum is OpenApiInteger enumInt)
{
parsedEnums.Add(enumInt);
}
}
return string.Join(", ", parsedEnums.Select(x => $"{x.Value} - {Enum.GetName(enumType, x.Value)}"));
}
}
2 -将其添加到Program.cs文件中
services.AddSwaggerGen(config =>
{
config.DocumentFilter<SwaggerEnumDocumentFilter>();
})
asp.net core 3
using System.Text.Json.Serialization;
public class Startup
{
public void ConfigureServices(IServiceCollection services)
{
services.AddControllers().AddJsonOptions(options =>
options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter()));
但是Swashbuckle Version 5.0.0-rc4似乎还没有准备好支持这个功能。所以我们需要在Swashbuckle配置文件中使用一个选项(已弃用)，直到它像Newtonsoft库一样支持和反映它。
public void ConfigureServices(IServiceCollection services)
{
services.AddSwaggerGen(c =>
{
c.DescribeAllEnumsAsStrings();
这个答案和其他答案之间的区别是只使用Microsoft JSON库而不是Newtonsoft。
