antpool_block_alert

// Put your parameters here:
// The Gmail address should be a mock one you don't use
var yourGmailAddress = 'xxx@gmail.com'
var yourGmailPassword = 'xxx'
// This is your normal email, that will receive the email alerts when Antpool claims a block
var yourEmail = 'xxx@xxx.xxx'
// Open an account in AntPool and create an API key, follow their documentation: https://www.antpool.com/user/apiGuild.htm
var yourApiKey = 'xxx'
// You will have to encrypt the autentication message in SHA256, go to https://www.freeformatter.com/hmac-generator.html and introduce:
// a) In "string" type (without spaces in between): your_userID + your_api_key + 2
// b) In "secret" type the secret key the Antpool API registering page returned you when you were creating the API
// Then wite down here as "yourHMAC" the resulting encrypted message
var yourHMAC = 'xxx'


var fs = require('fs');
var request = require('C:/nodejs/node_modules/request');
var nodemailer = require('C:/nodejs/node_modules/nodemailer');
var cron = require('C:/nodejs/node_modules/cron');


var transporter = nodemailer.createTransport({
    service: 'gmail',
    auth: {
        user: yourGmailAddress,
        pass: yourGmailPassword
    }
});

// Loading the log file here
var data1 = '';
var chunk1;
var stream1 = fs.createReadStream("antpoolblocks.json")
stream1.on('readable', function() { //Function just to read the whole file before proceeding
    while ((chunk1=stream1.read()) != null) {
        data1 += chunk1;}
});
stream1.on('end', function() {
    if (data1 != "") {
        var antpoolReports = JSON.parse(data1)
    } else {
        var antpoolReports = [] // Empty array
    }

    if (antpoolReports.length > 0) {
        knownBlocks = antpoolReports[antpoolReports.length-1].reportedblocks
    } else {
        knownBlocks = 0
    }

    // Calling the API every 5 minutes
    var cronJob = cron.job("00 0,5,10,15,20,25,30,35,40,45,50,55 * * * *", function(){

        var sign = yourHMAC.toUpperCase()

        var now = Date.now();
        request.post({
            url: 'https://antpool.com/api/poolStats.htm',
            json: true,
            form: {
                key: yourApiKey,
                nonce: 2,
                signature: sign,
                coin: 'SC'
            }
        }, function (err, httpResponse, body) {
            var newReportedBlocks = body.data.totalBlockNumber
            if (newReportedBlocks > knownBlocks) {
                console.log("Reported a block!!")
                entry = {"time": now, "reportedblocks": newReportedBlocks}
                console.log(entry)
                antpoolReports.push(entry)
                knownBlocks = newReportedBlocks

                // Save file
                var stream2 = fs.createWriteStream("antpoolblocks.json")
                var string2 = JSON.stringify(antpoolReports)
                stream2.write(string2)

                var emailText = 'Antpool found blocks at: ' + now + ". Total count: " + knownBlocks
                // Email
                var mailOptions = {
                    from: yourGmailAddress,
                    to: yourEmail,
                    subject: 'Antpool found blocks!',
                    text: emailText
                }
                transporter.sendMail(mailOptions, function(error, info){
                    if (error) {
                        console.log(error);
                    } else {
                        console.log('Email sent: ' + info.response);
                    }
                });

            } else {
                console.log("Nothing new at: " + now + " --> " + newReportedBlocks)
            }
        })
    })
    cronJob.start();
})