API-WS: disconnected from ws://rpc.polkadot.io: 1006:: connection failed

I am trying to connect to the public node using the @polkadot/api npm module.

Version: "@polkadot/api": "^2.3.1"

Node Version: v12.16.2

This is my code

// Import
const { ApiPromise, WsProvider } = require('@polkadot/api');

const wsProvider = new WsProvider('ws://rpc.polkadot.io');

const main = async () => {
    const api = await ApiPromise.create({ provider: wsProvider });
    await api.isReady;
    // Do something
    console.log(api.genesisHash.toHex());
};

main();

Due to this error I am unable to use the substrate-api-sidecar docker image.

Thanks.

EDIT The error is same for both urls ws://rpc.polkadot.io and wss://rpc.polkadot.io.

[schadokar]

Thank you. I think it was some network issue. Now, it is working.

[polkadot-js-bot]

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