Jaco Greeff
47fc4a2b3c
* Bump deps w/ eslint * Additional cleanups * Additional * @polkadot/types done * Additional * @polkadot/typegen done * Additional * @polkadot/rpc-core done * Additional * Additional * Additional * docs * @polkadot/api-derive done * @polkadot/api done * @polkadot/api-contracts done * Update tests
39 lines
1.2 KiB
JavaScript
Executable File
39 lines
1.2 KiB
JavaScript
Executable File
/* eslint-disable header/header */
|
|
/* eslint-disable @typescript-eslint/require-await */
|
|
/* eslint-disable @typescript-eslint/unbound-method */
|
|
/* eslint-disable @typescript-eslint/no-floating-promises */
|
|
|
|
// Import the API
|
|
const { ApiPromise } = require('@polkadot/api');
|
|
|
|
async function main () {
|
|
// Create our API with a default connection to the local node
|
|
const api = await ApiPromise.create();
|
|
|
|
// Subscribe to system events via storage
|
|
api.query.system.events((events) => {
|
|
console.log(`\nReceived ${events.length} events:`);
|
|
|
|
// Loop through the Vec<EventRecord>
|
|
events.forEach((record) => {
|
|
// Extract the phase, event and the event types
|
|
const { event, phase } = record;
|
|
const types = event.typeDef;
|
|
|
|
// Show what we are busy with
|
|
console.log(`\t${event.section}:${event.method}:: (phase=${phase.toString()})`);
|
|
console.log(`\t\t${event.meta.documentation.toString()}`);
|
|
|
|
// Loop through each of the parameters, displaying the type and data
|
|
event.data.forEach((data, index) => {
|
|
console.log(`\t\t\t${types[index].type}: ${data.toString()}`);
|
|
});
|
|
});
|
|
});
|
|
}
|
|
|
|
main().catch((error) => {
|
|
console.error(error);
|
|
process.exit(-1);
|
|
});
|