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autogen/dotnet/website/articles/Print-message-middleware.md
Griffin Bassman 850377c74a
fix: Various fixes and cleanups to dotnet autogen core (#5242) 
Co-authored-by: Jack Gerrits <jack@jackgerrits.com>
Co-authored-by: Ryan Sweet <rysweet@microsoft.com>
2025-01-28 17:13:36 -05:00

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@AutoGen.Core.PrintMessageMiddleware is a built-in @AutoGen.Core.IMiddleware that pretty print @AutoGen.Core.IMessage to console.

Note

@AutoGen.Core.PrintMessageMiddleware support the following @AutoGen.Core.IMessage types:

  • @AutoGen.Core.TextMessage
  • @AutoGen.Core.MultiModalMessage
  • @AutoGen.Core.ToolCallMessage
  • @AutoGen.Core.ToolCallResultMessage
  • @AutoGen.Core.Message
  • (streaming) @AutoGen.Core.TextMessageUpdate
  • (streaming) @AutoGen.Core.ToolCallMessageUpdate

Use @AutoGen.Core.PrintMessageMiddleware in an agent

You can use @AutoGen.Core.PrintMessageMiddlewareExtension.RegisterPrintMessage* to register the @AutoGen.Core.PrintMessageMiddleware to an agent.

[!code-csharp]

@AutoGen.Core.PrintMessageMiddlewareExtension.RegisterPrintMessage* will format the message and print it to console image

Streaming message support

@AutoGen.Core.PrintMessageMiddleware also supports streaming message types like @AutoGen.Core.TextMessageUpdate and @AutoGen.Core.ToolCallMessageUpdate. If you register @AutoGen.Core.PrintMessageMiddleware to a @AutoGen.Core.IStreamingAgent, it will format the streaming message and print it to console if the message is of supported type.

[!code-csharp]

image