Add throttling counters

[BelfordZ]

User description

Summary

• record max load type via monitorEvent when throttled
• cover rate-limiting metrics in tests

Testing

• npm test

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PR Type

Bug fix, Tests

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Description

• Record loadType via monitorEvent when throttling occurs

• Add unit tests for rate-limiting metrics and throttling behavior

• Ensure fallback to nestedCountersInstance.countEvent if monitorEvent unavailable

• Improve observability of throttling events in rate limiting

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Changes walkthrough 📝

	Relevant files
Bug fix	index.ts Record throttling events using monitorEvent with loadType src/rate-limiting/index.ts Use Context.shardus.monitorEvent to record throttling by loadType Fallback to nestedCountersInstance.countEvent if monitorEvent is unavailable Improves accuracy and observability of throttling events +5/-1
Tests	index.test.ts Add unit tests for rate-limiting throttling metrics            test/unit/src/rate-limiting/index.test.ts Add unit tests for RateLimiting.isOverloaded throttling logic Test that monitorEvent is called with correct parameters when overloaded Test that monitorEvent is not called when under limit Mock dependencies for isolated testing +56/-0

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PR Reviewer Guide 🔍

Here are some key observations to aid the review process:

⏱️ Estimated effort to review: 2 🔵🔵⚪⚪⚪

🏅 Score: 94

🧪 PR contains tests

🔒 No security concerns identified

⚡ Recommended focus areas for review Fallback Logic The fallback to nestedCountersInstance.countEvent if monitorEvent is unavailable should be validated to ensure that metrics are still recorded correctly in all deployment scenarios. if (Context.shardus && typeof Context.shardus.monitorEvent === 'function') { Context.shardus.monitorEvent('loadRelated', 'txRejected:' + loadType, 1, '') } else { nestedCountersInstance.countEvent('loadRelated', 'txRejected:' + loadType) } Mock Cleanup Ensure that all mocks, especially those on global objects like Math.random, are properly restored after each test to avoid test pollution. jest.spyOn(Math, 'random').mockReturnValue(0) const result = rl.isOverloaded('tx1')

[github-actions]

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