insight-api/app/controllers/socket.js at 924d67c15bd0385b461eeb8cc04ed28a7d6fb05b · bitpay/insight-api · GitHub

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'use strict';

// server-side socket behaviour
// io is a variable already taken in express
var ios = null;
var util = require('bitcore/util/util');

module.exports.init = function(app, io_ext) {
  ios = io_ext;
  ios.set('log level', 1); // reduce logging
  ios.sockets.on('connection', function(socket) {
    socket.on('subscribe', function(topic) {
      socket.join(topic);
    });
  });
};

module.exports.broadcastTx = function(tx) {
  if (ios) {
    var t;
    if (typeof tx === 'string') {
      t = {
        txid: tx
      };
    }

    else {
      t = {
        txid: tx.txid,
        size: tx.size,
      };
      // Outputs
      var valueOut = 0;
      tx.vout.forEach(function(o) {
        valueOut += o.value * util.COIN;
      });

      t.valueOut = parseInt(valueOut) / util.COIN;
    }
    ios.sockets. in ('inv').emit('tx', t);
  }
};

module.exports.broadcastBlock = function(block) {
  if (ios) ios.sockets. in ('inv').emit('block', block);
};

module.exports.broadcastAddressTx = function(address, tx) {
  if (ios) ios.sockets. in (address).emit(address, tx);
};

module.exports.broadcastSyncInfo = function(historicSync) {

  if (ios) {
    ios.sockets. in ('sync').emit('status', historicSync);
  }
};