openhim-core/lib/api/heartbeat.js

The OpenHIM core application that provides logging and routing of http requests

var Mediator, Q, moment, server, utils;

utils = require('../utils');

server = require('../server');

Mediator = require('../model/mediators').Mediator;

moment = require('moment');

Q = require('q');

exports.getHeartbeat = function*() {
  var e, error, i, len, mediator, mediators, result, uptime;
  try {
    uptime = Q.denodeify(server.getUptime);
    result = (yield uptime);
    mediators = (yield Mediator.find().exec());
    for (i = 0, len = mediators.length; i < len; i++) {
      mediator = mediators[i];
      if (!result.mediators) {
        result.mediators = {};
      }
      if ((mediator._lastHeartbeat != null) && (mediator._uptime != null) && moment().diff(mediator._lastHeartbeat, 'seconds') <= 60) {
        result.mediators[mediator.urn] = mediator._uptime;
      } else {
        result.mediators[mediator.urn] = null;
      }
    }
    result.now = Date.now();
    return this.body = result;
  } catch (error) {
    e = error;
    return utils.logAndSetResponse(this, 500, "Error: " + e, 'error');
  }
};

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