Typed Core

Shared core types and utilities for Typed Clients

Every Typed Client builds its core on top of this package. Prefer it over a client-local copy of the same logic — a client's own core/ should hold only what's genuinely venue-specific (envelope extraction, error mapping, signing, wire quirks), not a reimplementation of transport, timestamps, or error types.

Installation

pip install typed-core

What it provides

module	contents
`typed_core.exceptions`	`Error`, `NetworkError`, `ValidationError`, `ApiError` (`BadRequest`, `AuthError`, `RateLimited`), `LogicError`
`typed_core.http`	async HTTP client and response helpers
`typed_core.ws`	websocket socket, streams, JSON-RPC, streams-over-RPC
`typed_core.times`	`TimeConverter`, `EpochConverter`, `IsoConverter` — parse/dump between a venue's wire timestamp and a real `datetime`
`typed_core.util`	`RateLimit`, paging and stream helpers

from typed_core.times import EpochConverter, IsoConverter

timestamp_millis = EpochConverter.milliseconds()  # epoch, milliseconds
timestamp_iso = IsoConverter()                    # RFC 3339, Z-suffixed

Clients re-export the exceptions users are expected to catch from their own package root, so from kraken import AuthError works while implementation imports still come from typed_core. Route those re-exports through lazy_loader.attach_stub, not a plain from typed_core.exceptions import ... in an __init__.py — the latter breaks type-checking for every downstream consumer of a py.typed package.

License

MIT — see LICENSE.

Programming Language
Typing
- Typed

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