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@parity/parity.js
Advanced tools
The Parity Promise-based API & ABI library for interfacing with Ethereum over RPC
Parity.js is a thin, fast, Promise-based wrapper around the Ethereum APIs.
https://github.com/paritytech/parity/tree/master/js/src/api
Install the package with npm install --save @parity/parity.js
// import the actual Api class
import { Api } from '@parity/parity.js';
// do the setup
const transport = new Api.Transport.Http('http://localhost:8545');
const api = new Api(transport);
perform a call
api.eth
.coinbase()
.then((coinbase) => {
console.log(`The coinbase is ${coinbase}`);
});
multiple promises
Promise
.all([
api.eth.coinbase(),
api.net.listening()
])
.then(([coinbase, listening]) => {
// do stuff here
});
chaining promises
api.eth
.newFilter({...})
.then((filterId) => api.eth.getFilterChanges(filterId))
.then((changes) => {
console.log(changes);
});
attach contract
const abi = [{ name: 'callMe', inputs: [{ type: 'bool', ...}, { type: 'string', ...}]}, ...abi...];
const address = '0x123456...9abc';
const contract = new api.newContract(abi, address);
find & call a function
contract.instance
.callMe
.call({ gas: 21000 }, [true, 'someString']) // or estimateGas or postTransaction
.then((result) => {
console.log(`the result was ${result}`);
});
APIs implement the calls as exposed in the Ethcore JSON Ethereum RPC definitions. Mapping follows the naming conventions of the originals, i.e. eth_call
becomes eth.call
, personal_accounts
becomes personal.accounts
, etc.
FAQs
The Parity Promise-based API & ABI library for interfacing with Ethereum over RPC
We found that @parity/parity.js demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 3 open source maintainers collaborating on the project.
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