feat: slogai

[nddq]

Summary

Adds slogai, a new package that provides a slog handler for sending structured logs to Azure Application Insights. Inspired from @rbtr's zapai with some help from Claude for some enhancements, tests and documentation.

Features:

• Standard slog.Handler implementation for Application Insights
• Synchronous and asynchronous sinks with configurable batching
• Field redaction for sensitive data
• Field mappers for Application Insights context (cloud role, operation ID, etc.)
• Drop policies for high-throughput scenarios

Test plan

• Unit tests pass
• Example program tested against live Application Insights instance

Logs in Application Insights:

[Copilot]

Pull request overview

This PR adds slogai, a new package that provides a slog handler for sending structured logs to Azure Application Insights. The package is inspired by the existing zapai implementation and includes synchronous/asynchronous sinks, field redaction, field mappers, and drop policies for high-throughput scenarios.

Changes:

• New slogai package with full slog.Handler implementation for Application Insights
• Synchronous and asynchronous sink support with configurable batching and drop policies
• Field mapping system to transform slog attributes to Application Insights context tags
• Sensitive data redaction capabilities for PII filtering

Reviewed changes

Copilot reviewed 14 out of 15 changed files in this pull request and generated 20 comments.

Show a summary per file

File	Description
slogai/go.mod	Module definition with dependencies
slogai/go.sum	Dependency checksums
slogai/handler.go	Core slog.Handler implementation with field mapping and redaction
slogai/handler_test.go	Comprehensive tests for handler functionality
slogai/sink.go	Synchronous sink implementation for Application Insights
slogai/sink_test.go	Tests for sink functionality
slogai/async_sink.go	Asynchronous buffered sink with drop policies
slogai/async_sink_test.go	Tests for async sink functionality
slogai/encoder.go	Gob-based encoder/decoder for TraceTelemetry
slogai/encoder_test.go	Tests for encoder/decoder
slogai/mappers.go	Field mapper definitions for Application Insights context tags
slogai/mappers_test.go	Tests for field mappers
slogai/benchmark_test.go	Performance benchmarks
slogai/example/main.go	Example program demonstrating package usage
slogai/README.md	Documentation with usage examples

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[nddq]

/azp run Azure Container Networking PR

[azure-pipelines]

Azure Pipelines successfully started running 1 pipeline(s).

[rbtr]

Wouldn't it be nice if there was a maintained ApplicationInsights-Go package where standard Go logging bindings could live 😒

[github-actions]

This pull request is stale because it has been open for 2 weeks with no activity. Remove stale label or comment or this will be closed in 7 days

[github-actions]

This pull request is stale because it has been open for 2 weeks with no activity. Remove stale label or comment or this will be closed in 7 days

[github-actions]

This pull request is stale because it has been open for 2 weeks with no activity. Remove stale label or comment or this will be closed in 7 days

[github-actions]

Pull request closed due to inactivity.

[nddq]

recently scroll through my GitHub feed and this exists apparently 🙃 https://github.com/openclosed-dev/slogan (from @paulgmiller paulgmiller/careme#287)