Fix bearer token approach for Dotnet AF Sample#170
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rahuldevikar761 merged 4 commits intomainfrom Jan 23, 2026
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Pull request overview
This pull request refactors the authentication approach for non-agentic requests in the .NET Agent Framework sample. The changes remove the OBO (On-Behalf-Of) authentication handler ("me") and replace it with a bearer token-based approach for development and testing scenarios like Playground and WebChat.
Changes:
- Removed "me" authentication handler configuration from appsettings.json
- Simplified ToolingManifest.json to include only mcp_MailTools MCP server
- Added TryGetBearerTokenForDevelopment method to support bearer token authentication from environment variables
- Updated message handling logic to differentiate between agentic (uses auth handler) and non-agentic flows (uses bearer token)
- Changed error handling to gracefully continue without MCP tools instead of throwing exceptions
Reviewed changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 8 comments.
| File | Description |
|---|---|
| dotnet/agent-framework/sample-agent/appsettings.json | Removed "me" MsalUserAuthorization handler configuration to align with new bearer token approach |
| dotnet/agent-framework/sample-agent/ToolingManifest.json | Reduced MCP servers from 7 to 1 (mcp_MailTools only), simplifying the sample configuration |
| dotnet/agent-framework/sample-agent/Agent/MyAgent.cs | Added bearer token support via environment variables, refactored authentication flow to handle agentic vs non-agentic requests differently, and improved error handling for graceful degradation |
pontemonti
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Jan 22, 2026
pontemonti
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Jan 22, 2026
pontemonti
approved these changes
Jan 23, 2026
mrunalhirve128
approved these changes
Jan 23, 2026
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