getkeys.js

let lotion = require('lotion');
let os = require('os');
let fs = require('fs');

let app = lotion({
    initialState: {
    },
    logTendermint: false,
    createEmptyBlocks: false,
});

async function getNodeInfo() {
    let GCI = app.listen(3000);
    GCI.then(function(data) {
        displayKeys(data);
    });
}

function displayKeys(GCI) {
    let validatorKeyInfo = JSON.parse(
        fs.readFileSync(GCI.lotionPath + '/priv_validator.json')
    );    
    fs.writeFileSync('keys.json', JSON.stringify(validatorKeyInfo));

    console.log("Your keys have been saved to keys.json. Keep this file as you will need it later.");
    console.log("Your pubkey is: " + validatorKeyInfo.pub_key.data);
    console.log("Send your pubkey (and only pubkey) to jackson on lisk.chat");
    process.exit(0);

}

getNodeInfo();