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polkadot UnhandledPromiseRejectionWarning: Error: Api needs to be initialized before using, listen on 'ready'

Cute Cowfish answered on September 26, 2020 Popularity 1/10 Helpfulness 1/10

answer polkadot UnhandledPromiseRejectionWarning: Error: Api needs to be initialized before using, listen on 'ready'

polkadot UnhandledPromiseRejectionWarning: Error: Api needs to be initialized before using, listen on 'ready'

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import { ApiRx } from '@polkadot/api';

// initialise via static create
const api = await ApiRx.create().toPromise();

// make a call to retrieve the current network head
api.rpc.chain.subscribeNewHeads().subscribe((header) => {
  console.log(`Chain is at #${header.number}`);
});

Popularity 1/10 Helpfulness 1/10 Language javascript

Source: polkadot.js.org

Tags: api javascript listen polkadot

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Contributed on Sep 26 2020

Cute Cowfish

0 Answers Avg Quality 2/10

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polkadot UnhandledPromiseRejectionWarning: Error: Api needs to be initialized before using, listen on 'ready'

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