How I Built a Production Solana Sniper Bot from Scratch

#solana #blockchain #javascript #tutorial

Sharing the complete architecture of a Solana token sniper that actually works in production.

The Sniper System

The sniper monitors for new liquidity pool creations on Raydium and PumpFun. When a new pool appears:

Fetch token metadata via Helius DAS API
Run quick risk checks (supply distribution, metadata flags)
If checks pass, submit a buy transaction via Jito bundle
Jito ensures the buy lands in the same block as the pool creation
Auto-sell triggers at configurable take-profit targets

Why Jito Bundles

Without MEV protection, your snipe transaction can be:

Front-run by sandwich bots
Stuck in mempool while others get filled first
Subject to unfavorable slippage

Jito bundles guarantee atomic execution and tip validators for priority.

Code Architecture

// Simplified sniper flow
async function snipe(tokenAddress, amount) {
  const quote = await jupiter.getQuote(SOL, tokenAddress, amount);
  const tx = await jupiter.getSwapTransaction(quote);
  const signature = await jito.sendBundle([tx]);
  return signature;
}