View Source Changelog

0.3.0

Fixed

  • L1 action signing was non-deterministic. The connection id is the keccak of the action's msgpack encoding, and msgpack preserves field order, so field order is part of the signed preimage. Actions were encoded straight from Elixir maps, which do not preserve insertion order — for atom keys the order follows the atom table, which is populated differently on every BEAM run. The same action hashed to a different connection id on each boot. Added Hyperliquid.Api.ActionEncoder, which renders actions in canonical field order; the signed preimage and the request body are now built from the same canonicalized value. Verified against the reference Python SDK.
  • Candle close time (T) was silently destroyed. to_snake_case/1 downcased a lone uppercase letter, collapsing "T" onto "t". Affected every non-raw HTTP response, and fixed at all four key-transform sites. Thanks @code-supply (#7).
  • clearinghouseState subscriptions could not target the main perps dex. validate_required/2 treats "" as missing, which is the documented default. dex is now optional. Thanks @code-supply (#8).

Added

  • Full endpoint parity with the nktkas TypeScript SDK (v0.33.3): 78 info endpoints, 60 exchange actions, 31 subscription channels.
  • HIP-4 prediction markets: outcomeMeta, outcomeTemplates, settledOutcome, activateOutcomeDeployer, userOutcome, outcomeMetaUpdates.
  • Gossip priority and routing: gossipPriorityAuctionStatus, gossipPriorityBid, usdcRouting, perpConciseAnnotations, fastAssetCtxs.
  • Exchange actions: agentSendAsset, authorizeAqav2Role, finalizeEvmContract, hip3LiquidatorTransfer, topUpIsolatedOnlyMargin, stakingLinkDisableTradingUser.
  • Order priority fees: grouping accepts {:priority, rate}, serialized as {"p": rate} where the rate is the fraction rate / 1e8.
  • Documented the FrontendMarket time-in-force.

Changed

  • Updated rustler to 0.38. Requires the init! NIF list to be dropped (0.38 auto-registers #[rustler::nif] functions) and the Rust crate bumped to match.
  • Fixed local NIF builds: crate: "signer_nif" resolved to native/signer_nif, but the crate lives in native/signer, so HYPERLIQUID_BUILD_NIF=1 never worked. Thanks @code-supply (#9).

Upgrade notes

Precompiled NIFs are rebuilt for this release. Anyone vendoring the 0.2.2 artifacts must take the 0.3.0 ones — the older binaries reject priority grouping with invalid type: map, expected a string.

0.2.0

  • Complete DSL migration: all endpoints defined via declarative macros (use Endpoint, use SubscriptionEndpoint)
  • 62 Info endpoints, 38 Exchange endpoints, 26 WebSocket subscription channels
  • Added Explorer API modules (BlockDetails, TxDetails, UserDetails) and Stats modules
  • Added Hyperliquid.Telemetry with events for API, WebSocket, cache, RPC, and storage
  • Added :telemetry instrumentation to WebSocket connection/manager, cache init, RPC transport, and storage writer
  • Added Hyperliquid.Transport.Rpc for JSON-RPC calls to the Hyperliquid EVM
  • Ecto schema validation and optional Postgres persistence for subscription data
  • Private key is now optional with config fallback and address validation
  • Fixed EIP-712 domain name and chainId for all exchange modules
  • Normalized market order prices to tick size in asset-based builder

0.1.6

  • Updated l2Book post req to include sigFig and mantissa values

0.1.5

  • Added new userFillsByTime endpoint to info context

0.1.4

  • Added nSigFigs and mantissa optional params to l2Book subscription, add streamer pid to msg

0.1.3

  • Added functions to cache for easier access and allow intellisense to help you see what's available