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MiddlewareWorkerApplicationBuilderExtensions.UseWhen 方法

参考

定义

命名空间:: Microsoft.Extensions.Hosting

程序集:: Microsoft.Azure.Functions.Worker.Core.dll

包:: Microsoft.Azure.Functions.Worker.Core v1.11.0

重要

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重载

UseWhen(IFunctionsWorkerApplicationBuilder, Func<FunctionContext,Boolean>, Func<FunctionContext,Func<Task>,Task>)	将 IFunctionsWorkerApplicationBuilder 配置为在提供的谓词表达式返回 true 时使用提供的内联中间件委托。
UseWhen<T>(IFunctionsWorkerApplicationBuilder, Func<FunctionContext,Boolean>)	将 IFunctionsWorkerApplicationBuilder 配置为在提供的谓词表达式返回 true 时使用提供的中间件类型。

UseWhen(IFunctionsWorkerApplicationBuilder, Func<FunctionContext,Boolean>, Func<FunctionContext,Func<Task>,Task>)

Source:: WorkerMiddlewareWorkerApplicationBuilderExtensions.cs

将 IFunctionsWorkerApplicationBuilder 配置为在提供的谓词表达式返回 true 时使用提供的内联中间件委托。

public static Microsoft.Azure.Functions.Worker.IFunctionsWorkerApplicationBuilder UseWhen (this Microsoft.Azure.Functions.Worker.IFunctionsWorkerApplicationBuilder builder, Func<Microsoft.Azure.Functions.Worker.FunctionContext,bool> predicate, Func<Microsoft.Azure.Functions.Worker.FunctionContext,Func<System.Threading.Tasks.Task>,System.Threading.Tasks.Task> middleware);

static member UseWhen : Microsoft.Azure.Functions.Worker.IFunctionsWorkerApplicationBuilder * Func<Microsoft.Azure.Functions.Worker.FunctionContext, bool> * Func<Microsoft.Azure.Functions.Worker.FunctionContext, Func<System.Threading.Tasks.Task>, System.Threading.Tasks.Task> -> Microsoft.Azure.Functions.Worker.IFunctionsWorkerApplicationBuilder

<Extension()>
Public Function UseWhen (builder As IFunctionsWorkerApplicationBuilder, predicate As Func(Of FunctionContext, Boolean), middleware As Func(Of FunctionContext, Func(Of Task), Task)) As IFunctionsWorkerApplicationBuilder

参数

builder: IFunctionsWorkerApplicationBuilder

要配置的 IFunctionsWorkerApplicationBuilder。

predicate: Func<FunctionContext,Boolean>

调用的谓词，用于确定是否应在函数调用期间执行中间件。

middleware: Func<FunctionContext,Func<Task>,Task>

要添加到调用管道的中间件。

IFunctionsWorkerApplicationBuilder

链接也是如此 IFunctionsWorkerApplicationBuilder 。

适用于

UseWhen<T>(IFunctionsWorkerApplicationBuilder, Func<FunctionContext,Boolean>)

Source:: WorkerMiddlewareWorkerApplicationBuilderExtensions.cs

将 IFunctionsWorkerApplicationBuilder 配置为在提供的谓词表达式返回 true 时使用提供的中间件类型。

public static Microsoft.Azure.Functions.Worker.IFunctionsWorkerApplicationBuilder UseWhen<T> (this Microsoft.Azure.Functions.Worker.IFunctionsWorkerApplicationBuilder builder, Func<Microsoft.Azure.Functions.Worker.FunctionContext,bool> predicate) where T : class, Microsoft.Azure.Functions.Worker.Middleware.IFunctionsWorkerMiddleware;

static member UseWhen : Microsoft.Azure.Functions.Worker.IFunctionsWorkerApplicationBuilder * Func<Microsoft.Azure.Functions.Worker.FunctionContext, bool> -> Microsoft.Azure.Functions.Worker.IFunctionsWorkerApplicationBuilder (requires 'T : null and 'T :> Microsoft.Azure.Functions.Worker.Middleware.IFunctionsWorkerMiddleware)

<Extension()>
Public Function UseWhen(Of T As {Class, IFunctionsWorkerMiddleware}) (builder As IFunctionsWorkerApplicationBuilder, predicate As Func(Of FunctionContext, Boolean)) As IFunctionsWorkerApplicationBuilder