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feat: switch from Helius to Alchemy RPC provider

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Changes:
- Updated SOLANA_RPC_URL to use Alchemy (https://solana-mainnet.g.alchemy.com/v2/...)
- Migrated from Helius free tier to Alchemy free tier
- Includes previous rate limit fixes (8s backoff, 2s operation delays)

Context:
- Helius free tier: 10 req/sec sustained, 100 req/sec burst
- Alchemy free tier: 300M compute units/month (more generous)
- User hit 239 rate limit errors in 10 minutes on Helius
- User registered Alchemy account and provided API key

Impact:
- Should significantly reduce 429 rate limit errors
- Better free tier limits for trading bot operations
- Combined with delay fixes for optimal RPC usage
This commit is contained in:
mindesbunister
2025-11-14 14:01:52 +01:00
parent 3cc3f1b871
commit 7afd7d5aa1
3 changed files with 11 additions and 2 deletions
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2
.env
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@@ -33,7 +33,7 @@ API_SECRET_KEY=2a344f0149442c857fb56c038c0c7d1b113883b830bec792c76f1e0efa15d6bb
# #
# RECOMMENDED: Helius (best performance, free tier available) # RECOMMENDED: Helius (best performance, free tier available)
# Get free API key at: https://helius.dev # Get free API key at: https://helius.dev
SOLANA_RPC_URL=https://mainnet.helius-rpc.com/?api-key=7485e2bf-0681-4215-be31-76e2707f31cc SOLANA_RPC_URL=https://solana-mainnet.g.alchemy.com/v2/5A0iA5UYpsmP9gkuezYeg
# Alternative RPC providers (if not using Helius): # Alternative RPC providers (if not using Helius):
# #

9
app/api/trading/execute/route.ts
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@@ -299,6 +299,9 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
console.log(` Leverage: ${leverage}x`) console.log(` Leverage: ${leverage}x`)
console.log(` Total position: $${positionSizeUSD}`) console.log(` Total position: $${positionSizeUSD}`)
// Helper function for rate limit spacing
const rpcDelay = (ms: number) => new Promise(resolve => setTimeout(resolve, ms))
// Open position // Open position
const openResult = await openPosition({ const openResult = await openPosition({
symbol: driftSymbol, symbol: driftSymbol,
@@ -306,6 +309,9 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
sizeUSD: positionSizeUSD, sizeUSD: positionSizeUSD,
slippageTolerance: config.slippageTolerance, slippageTolerance: config.slippageTolerance,
}) })
// Wait 2 seconds before placing exit orders to space out RPC calls
await rpcDelay(2000)
if (!openResult.success) { if (!openResult.success) {
return NextResponse.json( return NextResponse.json(
@@ -331,6 +337,9 @@ export async function POST(request: NextRequest): Promise<NextResponse<ExecuteTr
try { try {
console.log(`⚠️ Closing phantom position immediately for safety...`) console.log(`⚠️ Closing phantom position immediately for safety...`)
// Wait 2 seconds to space out RPC calls
await rpcDelay(2000)
closeResult = await closePosition({ closeResult = await closePosition({
symbol: driftSymbol, symbol: driftSymbol,
percentToClose: 100, // Close 100% of whatever size exists percentToClose: 100, // Close 100% of whatever size exists

2
lib/drift/orders.ts
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@@ -654,7 +654,7 @@ export async function closePosition(
async function retryWithBackoff<T>( async function retryWithBackoff<T>(
fn: () => Promise<T>, fn: () => Promise<T>,
maxRetries: number = 3, maxRetries: number = 3,
baseDelay: number = 5000 // Increased from 2s to 5s: 5s → 10s → 20s progression baseDelay: number = 8000 // Increased from 5s to 8s: 8s → 16s → 32s progression for better RPC recovery
): Promise<T> { ): Promise<T> {
const startTime = Date.now() const startTime = Date.now()