ethabi-decode

This library is a codec for ABI-encoded data and event logs. It is a fork of ethabi with a focus on providing decode functionality in environments where libstd may not be available.

For compatibility with constrained no_std environments, the design of this library differs from the the upstream ethabi in several respects, including:

• ABI's need to be specified as code rather than being loaded from JSON (No SERDE support).

• Use of Vec<u8> instead of std::string::String for owned strings.

• Anything to do with human-readable error and display output was excised.

Building

• Build without libstd

  cargo build --no-default-features
  

• Build with libstd

  cargo build
  

Example

Decode an event log:

use ethabi_decode::{Event, ParamKind, Token};

fn decode_event_log(topics: Vec<H256>, data: Vec<u8>) -> Vec<Token> {

    let event = Event {
      signature: "SomeEvent(address,int256)",
      inputs: vec![
        Param { kind: ParamKind::Address, indexed: true },
        Param { kind: ParamKind::Int(256), indexed: false },
      ],
      anonymous: false,
    };

    event.decode(topics, data).unwrap()
}