[Ethereum] Elegant way to detect current provider int web3.js

infurametamaskmistparityweb3js

I want to know what provider the user is using (Metamaks, Mist…)so I can give better user experience. E.g. Give tips on how to unlock an account

I'm currently doing this, but is far from elegant. Is there a more correct/reliable way achieve the same?

getProviderName=()=>
{
    let providerName = "UNKNOWN"

    if(window.web3.currentProvider.constructor.name === "MetamaskInpageProvider")        
        providerName = "METAMASK"

    else if(window.web3.currentProvider.constructor.name === "EthereumProvider")        
        providerName = "MIST"

    else if(window.web3.currentProvider.constructor.name === "o")        
        providerName = "PARITY"

    else if(window.web3.currentProvider.host.indexOf("infura")!==-1) 
        providerName = "INFURA"      

    else if(window.web3.currentProvider.host.indexOf("localhost")!==-1)  
        providerName ="LOCALHOST"

    return providerName
}

Best Answer

This my current implementation: 

getCurrentProvider() {
    if (!window.web3) return 'unknown';

    if (window.web3.currentProvider.isMetaMask)
        return 'metamask';

    if (window.web3.currentProvider.isTrust)
        return 'trust';

    if (window.web3.currentProvider.isGoWallet)
        return 'goWallet';

    if (window.web3.currentProvider.isAlphaWallet)
        return 'alphaWallet';

    if (window.web3.currentProvider.isStatus)
        return 'status';

    if (window.web3.currentProvider.isToshi)
        return 'coinbase';

    if (typeof window.__CIPHER__ !== 'undefined')
        return 'cipher';

    if (window.web3.currentProvider.constructor.name === 'EthereumProvider')
        return 'mist';

    if (window.web3.currentProvider.constructor.name === 'Web3FrameProvider')
        return 'parity';

    if (window.web3.currentProvider.host && window.web3.currentProvider.host.indexOf('infura') !== -1)
        return 'infura';

    if (window.web3.currentProvider.host && window.web3.currentProvider.host.indexOf('localhost') !== -1)
        return 'localhost';

    return 'unknown';
},
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