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feat(logging): implement structured logging with levels and JSON output (#101) - #229
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LaGodxy merged 1 commit intoApr 29, 2026
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…ut (MettaChain#101) - Refactor logger.ts as single source of truth with DEBUG/INFO/WARN/ERROR levels - Add jsonOutput flag: emits JSON lines in production for log aggregators - Add sensitive data redaction (private keys, tokens, passwords, PII) - Add correlation ID tracking across requests - Update structuredLogger.ts to re-export from logger (no duplication) - Adds domain helpers: performance, network, web3, component - Replace raw console.* calls with logger.* in 39 files across: - hooks, lib services, security utils, components, API routes Closes MettaChain#101
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Summary
Closes #101
Standardizes logging across the entire app on a single interface with proper log levels, structured JSON output in production, and sensitive data redaction.
Changes
src/utils/logger.ts— single source of truthDEBUG,INFO,WARN,ERROR,SILENTjsonOutput: truein production emits newline-delimited JSON for log aggregators (Datadog, CloudWatch, etc.)src/utils/structuredLogger.ts— domain helpers, no duplicationlogger.ts(single import point for callers)performance(),network(),web3(),transaction(),component()39 files updated
Replaced raw
console.log/warn/error/debug/infocalls withlogger.*equivalents across hooks, lib services, security utilities, components, and API routes.Acceptance Criteria
loggerfrom@/utils/logger)jsonOutput: truewhenNODE_ENV=production)Testing
TypeScript type check passes with zero new errors. Pre-existing errors in
FloatingComparisonBar,PropertyCard,WalletModal,comparisonStoreare unrelated to this PR (confirmed by stash test).