@plugnet/rpc-core

This library provides a clean wrapper around all the methods exposed by a Plugnet network client.

Usage

Installation -

``
yarn add @plugnet/rpc-core
`

Initialisation -

`js
import Rpc from '@plugnet/rpc-core';
import WsProvider from '@plugnet/rpc-provider/ws';

const provider = new WsProvider('http://127.0.0.1:9944');
const rpc = new Rpc(provider);
`

Retrieving the block header object for a given block header hash (a 0x-prefixed hex string with length of 64) -

`js
rpc.chain
.getHeader('0x1234567890')
.subscribe(
(header) => console.log(header),
(error) => console.error('error:', error)
);
`

Retrieving the best block number, parent hash, state root hash, extrinsics root hash, and digest (once-off) -

`js
rpc.chain
.getHead()
.pipe(
switchMap((headerHash) => {
return rpc.chain.getHeader(headerHash);
})
)
.subscribe(
(header) => {
console.log(best #${header.blockNumber.toString()});
console.log(parentHash: ${header.parentHash.toString()});
console.log(stateRoot: ${header.stateRoot.toString()});
console.log(extrinsicsRoot: ${header.extrinsicsRoot.toString()});
console.log(digest: ${header.digest.toString()});
},
(error) => {
console.error('error:', error);
}
);
`

Retrieving best header via subscription -

`js
api.chain
rpc
.subscribeNewHeads()
.subscribe(
(header) => {
console.log(best #${header.blockNumber});
},
(error) => {
console.error('error subscribing:', error);
}
);
``

Classes

Classes