Microsoft has announced the release of Dev Proxy v1.1, bringing major improvements for developers working with Microsoft Graph simulations, authentication testing, and permissions guidance. This release focuses on reliability, performance, and better reporting capabilities.

Key Fixes and Enhancements in v1.1

Microsoft Graph Batch Response Handling

• Fixed an issue where GraphRandomErrorPlugin incorrectly returned HTTP 424 instead of 200 for batch requests.

• Now batch responses correctly return 200 OK while preserving proper error codes (e.g., 429 for throttling) for individual requests.

• Improved exception handling ensures accurate response patterns for Graph batch operations.

Authentication Plugin Fixes

• Resolved an initialization issue where the Enabled property was incorrectly set to false, breaking authentication simulation.

• Configuration settings are now respected, restoring proper functionality across all supported flows.

MinimalPermissionsGuidancePlugin Enhancements

• Added Markdown and plain text reporting for easier documentation.

• Introduced scope filtering to exclude specific permissions.

• Optimized MSGraphDb generation for better performance.

• Helps teams follow the principle of least privilege with clearer insights.

Dev Proxy Toolkit v1.2.0 for VS Code

Alongside this release, the Dev Proxy Toolkit v1.2.0 is now available for Visual Studio Code. Updates include:

• JSON snippets upgraded to v1.1.0 schemas

• New YAML snippets for GitHub Actions

• General bug fixes and improvements

Why It Matters

This release makes Microsoft Graph development and testing more reliable by fixing long-standing issues with batch handling, authentication, and permission analysis. Developers can now simulate real-world Graph behaviors more accurately, improving their application security posture.