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MessageProcessingHandler Class

MessageProcessingHandler Class

.NET Framework 4.6 and 4.5

A base type for handlers which only do some small processing of request and/or response messages.

Namespace:  System.Net.Http
Assembly:  System.Net.Http (in System.Net.Http.dll)

public abstract class MessageProcessingHandler : DelegatingHandler

The MessageProcessingHandler type exposes the following members.

Protected methodMessageProcessingHandler()Creates an instance of a MessageProcessingHandler class.
Protected methodMessageProcessingHandler(HttpMessageHandler)Creates an instance of a MessageProcessingHandler class with a specific inner handler.

Public propertyInnerHandlerGets or sets the inner handler which processes the HTTP response messages. (Inherited from DelegatingHandler.)

Public methodDispose()Releases the unmanaged resources and disposes of the managed resources used by the HttpMessageHandler. (Inherited from HttpMessageHandler.)
Protected methodDispose(Boolean)Releases the unmanaged resources used by the DelegatingHandler, and optionally disposes of the managed resources. (Inherited from DelegatingHandler.)
Public methodEquals(Object)Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeServes as the default hash function. (Inherited from Object.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Protected methodProcessRequestPerforms processing on each request sent to the server.
Protected methodProcessResponsePerform processing on each response from the server.
Protected methodSendAsyncSends an HTTP request to the inner handler to send to the server as an asynchronous operation. (Overrides DelegatingHandler.SendAsync(HttpRequestMessage, CancellationToken).)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)

The actual creation of response messages is delegated to an inner handler. The MessageProcessingHandler is useful if the handler doesn't require asynchronous operations, because operations on request and response messages are fast.

The most common usage is to derive from this class and override the ProcessRequest and ProcessResponse methods. 

.NET Framework

Supported in: 4.6, 4.5

.NET for Windows Phone apps

Supported in: Windows Phone 8.1

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.
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