#Merkezi Logger
#React
#TypeScript
#Offline-First
#Frontend Mimari
#Loglama Stratejileri
#Hata Yönetimi
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React Centralized Logger Architecture: Offline-First & Hybrid Crash Reporting
Centralized logger architecture for React and Next.js that safely transmits frontend errors, network outages, and user interactions using IndexedDB offline queue and batching.
As Single Page Applications and Progressive Web Apps scale, capturing client-side runtime errors, network timeouts, and state corruptions becomes vital. This article shares the architecture of an Offline-First Centralized Logger that retains telemetry even during network disconnects.
1. Why console.error Is Insufficient
- ❌ **Log Volatility:** Page reloads discard client console messages.
- ❌ **Network Flooding:** Sending distinct HTTP calls for every event overburdens servers.
- ❌ **Offline Dropping:** Requests made during tunnel/network loss fail permanently.
2. IndexedDB Queue & Smart Batching
The logging engine persists incoming events into local IndexedDB storage before evaluating online connectivity and transmitting telemetry in compressed 50-entry batches.
typescript
1class CentralizedLogger {
2 public async log(level: 'info' | 'warn' | 'error', message: string, meta?: any) {
3 const entry: LogEntry = {
4 timestamp: Date.now(),
5 level,
6 message,
7 meta,
8 url: window.location.href,
9 userAgent: navigator.userAgent
10 };
11 await this.persistToIndexedDB(entry);
12 this.checkFlushConditions();
13 }
14}3. Results
Achieved 99.9% telemetry delivery rate with 85% reduced network traffic and zero client-thread blocking.
