如何在指向一个端点的Swashbuckle文档路径中添加多个操作?

时间:2018-09-04 12:06:13

标签: asp.net oauth swagger owin swashbuckle

我尝试使用Swashbuckle 5.6.0来形容我的asp.net Web API OAuth端点,并尝试了以下解决方案:

How to show WebApi OAuth token endpoint in Swagger

我的问题是,asp.net OAuth授权服务器中接收访问令牌和通过刷新令牌获取新令牌的URL是相同的。 由于“路径”是IDictionary<string, PathItem>,因此无法将第二个URL添加到Swagger文档路径。

public class AuthTokenOperation : IDocumentFilter
{
    public void Apply(SwaggerDocument swaggerDoc, SchemaRegistry schemaRegistry, IApiExplorer apiExplorer)
    {
        // get the Token Endpoint from Config
        var endpoint = Helpers.GetAppSetting("TokenEndPoint");

        // Access Token
        swaggerDoc.paths.Add(endpoint, new PathItem
        {
            post = new Operation
            {
                tags = new List<string> { "AccessToken" },
                consumes = new string[] { "application/x-www-form-url-encoded" },
                produces = new string[] { "application/json" },
                parameters = new List<Parameter>
                {
                    new Parameter
                    {
                        type = "string",
                        name = "username",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "password",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "grant_type",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "client_id",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "client_secret",
                        required = true,
                        @in = "formData"
                    }
                }
            }
        });

        // Refresh Token
        swaggerDoc.paths.Add(endpoint, new PathItem
        {
            post = new Operation
            {
                tags = new List<string> { "AccessToken" },
                consumes = new string[] { "application/x-www-form-url-encoded" },
                produces = new string[] { "application/json" },
                parameters = new List<Parameter>
                {
                    new Parameter
                    {
                        type = "string",
                        name = "grant_type",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "client_id",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "client_secret",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "refresh_token",
                        required = true,
                        @in = "formData"
                    }
                }
            }
        });
    }
}    

仅使用不同的参数,是否有可能描述两个指向同一端点的api方法?

如此处所示:https://api.gettyimages.com/swagger/ui/index#!/OAuth

2 个答案:

答案 0 :(得分:1)

最后,提示“添加无意义的内容”适用于我们的用例。

我还添加了一个新的模型类AuthServerResponseModel,其中将auth请求的响应映射到其中。

public class AuthServerResponseModel
{
    public string access_token { get; set; }
    public string token_type { get; set; }
    public int expires_in { get; set; }
    public string refresh_token { get; set; }
    public string audience { get; set; }
}

要使该对象在Swagger中为人所知,必须将该类添加到SchemaRegistry中。

之后,我可以在响应模式中使用“ @ref”标记来声明我的身份验证请求的响应类型。

public class AuthTokenOperation : IDocumentFilter
{
    public void Apply(SwaggerDocument swaggerDoc, SchemaRegistry schemaRegistry, IApiExplorer apiExplorer)
    {
        schemaRegistry.GetOrRegister(typeof(AuthServerResponseModel));            

        // get the Token Endpoint from Config
        string endpoint = "URL-To-The-OAuth-Endpoint";

        // Access Token
        swaggerDoc.paths.Add(endpoint + "#AccessToken", new PathItem
        {
            post = new Operation
            {
                operationId = "AccessToken",
                tags = new List<string> { "Token" },
                consumes = new string[] { "application/x-www-form-url-encoded" },
                produces = new string[] { "application/json" },
                parameters = new List<Parameter>
                {
                    new Parameter
                    {
                        type = "string",
                        name = "username",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "password",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "grant_type",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "client_id",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "client_secret",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "DeviceId",
                        required = false,
                        @in = "formData"
                    }
                },
                responses = new Dictionary<string, Response>()
                {
                    { "200", new Response() { description = "Ok", schema = new Schema() { type = "object", @ref = "#/definitions/AuthServerResponseModel" } } },
                    { "400", new Response() { description = "BadRequest" } },
                    { "404", new Response() { description = "NotFound" } }
                }
            }
        });

        // Refresh Token
        swaggerDoc.paths.Add(endpoint + "#RefreshToken", new PathItem
        {
            post = new Operation
            {
                operationId = "RefreshToken",
                tags = new List<string> { "Token" },
                consumes = new string[] { "application/x-www-form-url-encoded" },
                produces = new string[] { "application/json" },
                parameters = new List<Parameter>
                {
                    new Parameter
                    {
                        type = "string",
                        name = "grant_type",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "client_id",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "client_secret",
                        required = true,
                        @in = "formData"
                    },
                    new Parameter
                    {
                        type = "string",
                        name = "refresh_token",
                        required = true,
                        @in = "formData"
                    }
                },
                responses = new Dictionary<string, Response>()
                {
                    { "200", new Response() { description = "Ok", schema = new Schema() { type = "object", @ref = "#/definitions/AuthServerResponseModel"  } } },
                    { "400", new Response() { description = "BadRequest" } },
                    { "404", new Response() { description = "NotFound" } }
                }
            }
        });
    }
}    

使用Swagger Codegen自动生成客户端的效果很好。

答案 1 :(得分:0)

路径是swashbuckle中的字典:

  public class SwaggerDocument
  {
    public readonly string swagger = "2.0";
    public Info info;
    ...

    public IDictionary<string, PathItem> paths;
    ...
  }

这就是为什么“键已添加到集合”例外

的原因

在大张旗鼓的情况下,我们遵循Open Api规范,并且该路径是带模式的字段:
https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#patterned-fields

他们清楚地指出,对于这些模式化字段,重复项是“否”:

  

模式字段可以多次出现,只要每个字段都有唯一的名称即可。

https://github.com/OAI/OpenAPI-Specification/blob/master/versions/2.0.md#specification



最好的选择是将无意义的内容(例如哈希)添加到端点以使其与众不同,这可能是这样的:

swaggerDoc.paths.Add(endpoint + "#Access", new PathItem ...
swaggerDoc.paths.Add(endpoint + "#Refresh", new PathItem ...



gettyimages的家伙如何解决这个问题?

这是一些有趣的发现

他们在gettyimages上使用的swagger-ui版本是高度定制的,我认为他们正在使用JS注入其他路径
https://api.gettyimages.com/swagger/ui/ext/GettyImages-Resources-OAuthGrant-js

您也可以做到这一点,这不仅仅是将一些附加内容添加到端点上,还需要做很多工作