Open a position

Simulate

const sim = await call("simulate_leverage", {
  strategyId, payToken, amount: "50000", leverage: 8,
});

Confirm positionPreview — leverage, effectiveLtv, expectedLeverageApy, priceImpactPct.

Build the unsigned tx

const bundle = await call("build_leverage_tx", {
  strategyId, payToken, amount: "50000", leverage: 8, userAddress: "0x…",
});

Verify (optional but recommended)

Sign & send

Send approvals[] first (if any), then tx, from userAddress. Or hand the user bundle.meta.signingUrl.

Confirm

const { positions } = await call("get_positions", { userAddress: "0x…" });

Rebuild if bundle.meta.expiresAt passes before signing — the swap calldata is only valid for ~60 seconds.