drift

Use driftClient.placePerpOrder with orderType, marketIndex, direction, and baseAssetAmount converted via convertToPerpPrecision. Limit orders also require a price in PRICE_PRECISION, and trigger orders need triggerPrice and triggerCondition.

Install @drift-labs/sdk, @solana/web3.js, and @coral-xyz/anchor, then create a DriftClient with a Connection, Wallet, and environment. Call subscribe() before use, and initialize a user account with initializeUserAccount if one does not exist.

Yes, DriftPy provides Python bindings installable via pip install driftpy. It supports the same core operations as the TypeScript SDK, including DriftClient setup, account subscription, and order placement.

This error occurs when a post-only order would execute as a taker by crossing the spread. Fix it by pricing below the current ask, using PostOnlyParams.TRY_POST_ONLY to skip silently, or PostOnlyParams.SLIDE to auto-adjust the price.

Use the User class methods: user.liquidationPrice(marketIndex) returns the liquidation price for a perp position, user.getHealth() returns account health from 0-100, and user.canBeLiquidated() checks liquidation risk.

Drift uses BN.js with fixed precision: QUOTE_PRECISION (10^6) for USDC, BASE_PRECISION (10^9) for perp sizes, and PRICE_PRECISION (10^6) for prices. Use convertToPerpPrecision, convertToSpotPrecision, and convertToPricePrecision helpers for correct conversion.