Avail Rust Core

Avail Rust Core provides the low-level building blocks for interacting with Avail data-availability networks from Rust.

This crate ships the strongly-typed runtime metadata, SCALE helpers, storage abstractions, and RPC utilities that power the higher-level avail-rust-client crate. Use it when you want tight control over encoding/decoding Avail extrinsics, events, and storage entries without pulling in a full client stack.

What You Get

• Avail-specific runtime types (AccountId, RuntimeCall, pallet storage definitions, and more).
• Helpers to encode/decode extrinsics, events, and receipts via TransactionDecodable, TransactionEventDecodable, and related traits.
• Storage traits (StorageValue, StorageMap, StorageDoubleMap) with iterators and hashing helpers to fetch and decode on-chain data.
• Lightweight RPC helpers built on subxt, including tools for fetching raw blocks, events, and extrinsics.
• Dual-target support: native (std) and wasm feature flags expose the same API with the right transport integrations for each environment.

Feature Flags

• native (default): Enables std support plus native RPC transports.
• wasm: Enables bindings required for WebAssembly environments.

Enable exactly one of these targets; the crate deliberately avoids picking a transport for you so that it can stay lightweight.

Related Crates

• avail-rust-client: Batteries included client that wraps avail-rust-core with RPC transport, signing, and ergonomic submission helpers.
• avail-rust examples: Real-world programs that showcase how the core types are meant to be used.

License

This project is primarily distributed under the terms of MIT license. See LICENSE