docs: Update Common Pitfall #1 with definitive Alchemy investigation results
- Replaced speculation with hard data from diagnostic tests - Alchemy: 17-71 subscription errors per init (PROVEN) - Helius: 0 subscription errors per init (PROVEN) - Root cause: Rate limit enforcement breaks burst subscription pattern - Investigation CLOSED - Helius is the only solution - Reference: docs/ALCHEMY_RPC_INVESTIGATION_RESULTS.md
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mindesbunister
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.github/copilot-instructions.md
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.github/copilot-instructions.md
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@@ -994,47 +994,47 @@ ORDER BY MIN(adx) DESC;
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## Common Pitfalls
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1. **WRONG RPC PROVIDER (CRITICAL - CATASTROPHIC SYSTEM FAILURE):**
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- **FINAL CONCLUSION Nov 14, 2025 (after extensive testing):** Helius is the ONLY reliable RPC provider for Drift SDK
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- **Alchemy "breakthrough" was NOT sustainable:** First trade appeared perfect (14:25 CET), but Alchemy consistently fails on subsequent trades
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- **Symptom #1 (Helius rate limits):** 239+ rate limit errors in 10 minutes → led to initial Alchemy switch
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- **Symptom #2 (Alchemy incompatibility):**
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* 100+ accountSubscribe errors during init
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* SDK claims "initialized successfully" but is fundamentally broken
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* First trade might work, then SDK gets into bad state
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* Timeouts on subsequent execute calls (60+ seconds)
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* Positions open WITHOUT TP/SL orders (NO RISK MANAGEMENT)
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* Position Manager doesn't track positions
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* Database saves fail silently
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- **Root Cause:** Alchemy RPC does NOT support WebSocket subscriptions (accountSubscribe method) which Drift SDK REQUIRES for proper operation
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- **ONLY WORKING SOLUTION:** Use Helius RPC with proper rate limit handling (5s exponential backoff retries)
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- **Why Helius works:** Supports ALL Solana RPC methods including WebSocket subscriptions, Drift SDK functions correctly
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- **Why Alchemy fails:** Despite 10,000 CU/s throughput (Growth plan), lacks WebSocket support = Drift SDK malfunction after first operation
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- **Impact with Helius:** System fully operational, TP1/TP2/SL work correctly, Position Manager tracks properly
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- **User confirmations:**
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* "SO IT WAS THE FUCKING RPC THAT WAS CAUSING ALL THE ISSUES!!!!!!!!!!!!" (referring to Helius rate limits)
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* "after changing back the settings it started to act up again" (Alchemy breaks again)
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* "telegram works again" (after reverting to Helius final time)
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- **Testing timeline Nov 14, 2025:**
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* 14:01 - Switched to Alchemy
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* 14:25 - First trade perfect (appeared to be breakthrough)
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* 15:00-20:00 - Added hybrid/fallback code (broke everything)
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* 20:00 - Reverted to pure Alchemy from working commit (still broke - timeouts, no TP/SL)
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* 20:05 - Reverted to Helius (works reliably)
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- **Critical:** NEVER use RPC provider without WebSocket subscription support for Drift Protocol trading
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- **This is definitive:** Helius only, no alternatives work reliably
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- **FINAL CONCLUSION Nov 14, 2025 (INVESTIGATION COMPLETE):** Helius is the ONLY reliable RPC provider for Drift SDK
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- **Root Cause CONFIRMED:** Alchemy's rate limiting breaks Drift SDK's burst subscription pattern during initialization
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- **Definitive Proof (Nov 14, 21:14 CET):**
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* Created diagnostic endpoint `/api/testing/drift-init`
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* Alchemy: 17-71 subscription errors EVERY init (49 avg over 5 runs), 1644ms avg init time
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* Helius: 0 subscription errors EVERY init, 800ms avg init time
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* See `docs/ALCHEMY_RPC_INVESTIGATION_RESULTS.md` for full test data
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- **TECHNICAL NOTE (for future investigation):**
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* Alchemy Growth plan (10,000 CU/s) DOES support WebSocket subscriptions according to official docs
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* Supports up to 2,000 concurrent WebSocket connections
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* All standard Solana RPC methods supported (getProgramAccounts, getMultipleAccounts, sendTransaction, etc.)
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* No known Drift-Alchemy incompatibilities documented by Drift Labs
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* Research source: Alchemy Solana docs + Drift Protocol documentation
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* **Hypothesis:** accountSubscribe errors might be rate limit 429s (CUPS enforcement), not "method not found"
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* **Potential issue:** Drift SDK may not handle Alchemy's rate limit pattern during initialization
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* **Why it matters:** First trade works (subscriptions established) → subsequent trades fail (SDK in bad state from rate limit errors)
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* **Pragmatic decision:** Helius works reliably NOW, theoretical investigation can wait
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* **Future optimization:** Could implement WebSocket-specific retry logic, subscription batching, init delays
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* **For now:** Helius free tier + 5s exponential backoff = production-ready solution
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- **Why Alchemy Fails:**
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* Drift SDK subscribes to 30-50+ accounts simultaneously during init (burst pattern)
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* Alchemy's CUPS enforcement rate limits these burst requests
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* Drift SDK does NOT retry failed subscriptions
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* SDK reports "initialized successfully" but with incomplete subscription set
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* Subsequent operations fail/timeout due to missing account data
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* Error message: "Received JSON-RPC error calling `accountSubscribe`"
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- **Why "Breakthrough" at 14:25 Wasn't Real:**
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* First Alchemy test had 17-71 subscription errors (random variation)
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* Sometimes gets lucky with "just enough" subscriptions for one operation
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* SDK in degraded state from the start, just not obvious until second operation
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* This explains why first trade "worked" but subsequent trades failed
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- **Why Helius Works:**
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* Higher burst tolerance for Solana dApp subscription patterns
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* Zero subscription errors during init
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* Faster initialization (800ms vs 1600ms)
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* Stable for continuous operations
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- **Technical Reality vs Documentation:**
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* Alchemy DOES support WebSocket subscriptions (research confirmed)
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* Alchemy DOES support accountSubscribe method (not -32601 error)
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* BUT: Rate limit enforcement model incompatible with Drift's burst pattern
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* Documentation doesn't mention burst subscription limits
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- **Production Status:**
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* Using: Helius RPC (https://mainnet.helius-rpc.com/?api-key=...)
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* Retry logic: 5s exponential backoff for rate limits
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* System: Stable, TP1/TP2/SL working, Position Manager tracking correctly
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- **Investigation Closed:** This is DEFINITIVE. Use Helius. Do not use Alchemy.
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- **Test Yourself:** `curl 'http://localhost:3001/api/testing/drift-init?rpc=alchemy'`
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2. **Prisma not generated in Docker:** Must run `npx prisma generate` in Dockerfile BEFORE `npm run build`
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