web3-modal-x/src/providers/connectors/injected.js

A single Web3 / Ethereum provider solution for all Wallets

const ConnectToInjected = async () => {
    let provider = null;
    if (typeof window.ethereum !== 'undefined') {
        provider = window.ethereum;
        try {
            await provider.request({method: 'eth_requestAccounts'})
        } catch (error) {
            throw new Error("User Rejected");
        }
    } else if (window.web3) {
        provider = window.web3.currentProvider;
    } else {
        throw new Error("No Web3 Provider found");
    }
    return provider;
};

export default ConnectToInjected;