"The Microsoft 365 Developer team has announced the release of Dev Proxy v1.3.0, introducing several new features aimed at improving debugging, testing, and API monitoring. The update includes two new plugins, HAR file generation for standardized network tracing and OpenAI usage tracking for better visibility into AI-related costs, along with enhancements to permissions analysis, OpenAPI specification generation, and overall stability."
"According to the announcement, the new HarGeneratorPlugin enables automatic creation of HTTP Archive (HAR) files from intercepted API requests and responses. HAR files are widely recognized as an industry standard for capturing and sharing network activity. This addition allows developers to export reproducible network traces that can be analyzed in tools like Chrome DevTools and Fiddler. The plugin aims to simplify collaboration among development, QA, and support teams by providing a universal debugging format compatible across platforms."
"Another major addition is the OpenAIUsageDebuggingPlugin, designed for developers building AI-driven applications. This plugin records detailed OpenAI API usage data, including token consumption, model calls, and request statistics, into CSV files. As reported, it allows developers to monitor and analyze how their applications use large language models, helping them detect inefficient usage patterns and manage costs during development and testing. The team emphasized that this feature helps identify potential issues "before they become expensive surprises in production.""
Dev Proxy v1.3.0 delivers new tooling to improve debugging, testing, and API monitoring workflows. The HarGeneratorPlugin automatically produces HAR files from intercepted requests and responses, enabling exportable, reproducible network traces compatible with tools like Chrome DevTools and Fiddler and supporting cross-team troubleshooting. The OpenAIUsageDebuggingPlugin logs detailed OpenAI API usage—token consumption, model calls, and request statistics—into CSV files for cost and efficiency analysis. Additional improvements enhance permissions analysis, OpenAPI specification generation for multi-port and multi-service scenarios, and overall stability to reduce unexpected production costs and streamline development diagnostics.
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