🚀 Feature Request: Multi-AI Provider Backend with Load Balancing & Failover

[Sushmitha3141]

Issue Description
ThinkDSA currently lacks robust error handling, request optimization, and smart caching mechanisms. Users face issues when Gemini API fails, slow responses, and redundant API calls that waste quota and degrade performance.

Proposed Solution
Build a comprehensive request management system with intelligent caching, retry logic, and performance optimization - all using free resources.

Core Features:

• Smart Request Queue: Batch and optimize API calls
• Intelligent Retry System: Handle API failures gracefully
• Browser-Based Caching: Cache hints locally to reduce API calls
• Request Deduplication: Prevent duplicate requests for same code
• Performance Analytics: Track response times and success rates
• Offline Mode: Basic functionality when API is down

Technical Stack (100% FREE):

• Frontend: Vanilla JavaScript ES6+
• Storage: Chrome Extension Storage API + IndexedDB
• Caching: Browser localStorage + intelligent cache management
• Queue: JavaScript-based request queue with priority
• Analytics: Local storage with export functionality

Implementation Details

Request Optimization:

• Deduplicate identical requests within 30 seconds
• Batch similar requests together
• Smart retry with exponential backoff (1s, 2s, 4s, 8s)
• Compress request payloads

Browser-Based Caching:

• Cache successful hints for 24 hours
• Store by problem ID + code similarity hash
• LRU eviction when storage limit reached
• Export/import cache for backup

Performance Goals

• Cache Hit Rate: 40%+ (reducing API calls)
• Response Time: < 1 second for cached responses
• Error Recovery: < 5 seconds with retry logic
• Storage Efficiency: < 10MB browser storage usage

Implementation Phases

1. Phase 1: Request queue and deduplication system
2. Phase 2: Browser-based caching with IndexedDB
3. Phase 3: Error handling and retry logic
4. Phase 4: Performance monitoring and analytics

Labels
enhancement, backend-logic, performance, caching, error-handling, user-experience, free-tier, gssoc

I would like to work on this
Experienced backend developer ready to build this optimization system using only free resources. This addresses real performance and reliability issues while staying completely cost-free.

Ready to transform ThinkDSA's reliability and performance without any infrastructure costs!

[Adithyakp86]

Hello
I am a GSSoc'25 participant and would like to work on the issue.
I have already identified the issue.
Kindly asign to me so I can create a PR.
Also, please consider adding the labels and level GSSOC.