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The production web application uses Next.js 16, React 19, RainbowKit, wagmi, viem, TanStack Query, Zod, and Lightweight Charts.

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Wallet architecture

wagmiConfig exposes only Base Mainnet and the injected connector. RainbowKit renders the connection UI. The active address, chain, and wallet client flow through a browser-wallet provider; there is no active Privy wallet runtime.

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Writes

  1. Read an onchain quote and balances.
  2. Derive a minimum output from configured slippage.
  3. Bind the quote to wallet, token, side, network, state, and deadline.
  4. Simulate the exact request.
  5. Append the ERC-8021 Builder Code suffix.
  6. Ask the connected wallet to send.
  7. Wait for and validate the receipt.
  8. Refresh onchain and indexed queries.
The transaction modal identifies Base (8453), active wallet, reviewed amounts, hash, and current phase. BaseScan links use the confirmed or submitted transaction hash.

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Indexed reads

Zod schemas fail closed on malformed API responses. ETH remains the authoritative displayed denomination; optional USD reference values depend on a validated API oracle response and render unavailable when missing or stale.