pink-web3

Port of rust-web3 to Pink contract.

web3

Ethereum JSON-RPC multi-transport client. Rust implementation of Web3.js library.

Documentation: crates.io

Usage

First, add this to your Cargo.toml:

[dependencies]
pink-web3 = "0.19.0"

Example

fn in_some_ink_query() {
    use pink_web3 as web3;

    let transport = web3::transports::PinkHttp::new("http://localhost:3333")?;
    let web3 = web3::Web3::new(transport);

    // Calling accounts
    let mut accounts = web3.eth().accounts().resolve().unwrap();
    accounts.push("00a329c0648769a73afac7f9381e08fb43dbea72".parse().unwrap());

    for account in accounts {
        let balance = web3.eth().balance(account, None).resolve().unwrap();
        debug_println!("Balance of {:?}: {}", account, balance);
    }

    Ok(())
}

If you want to deploy smart contracts you have written you can do something like this (make sure you have the solidity compiler installed):

solc -o build --bin --abi contracts/*.sol

The solidity compiler is generating the binary and abi code for the smart contracts in a directory called contracts and is being output to a directory called build.

General

• More flexible API (accept Into<X>)
• Contract calls (ABI encoding; debris/ethabi)
• Batch Requests

Transports

• Pink HTTP transport

Types

• Types for U256,H256,Address(H160)
• Index type (numeric, encoded to hex)
• Transaction type (Transaction from Parity)
• Transaction receipt type (TransactionReceipt from Parity)
• Block type (RichBlock from Parity)
• Work type (Work from Parity)
• Syncing type (SyncStats from Parity)

APIs

• Eth: eth_*
• Eth filters: eth_*
• Eth pubsub: eth_*
• net_*
• web3_*
• personal_*
• traces_*

Parity-specific APIs

• Parity read-only: parity_*

• Parity accounts: parity_* (partially implemented)

• Parity set: parity_*

• signer_*

• Own APIs (Extendable)

let web3 = Web3::new(transport);
web3.api::<CustomNamespace>().custom_method().wait().unwrap()

Cargo Features

The library supports following features:

• pink - Enable pink HTTP and (or) signing support
• signing - Enable account namespace and local-signing support
• std - Enable std features for dependencies