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DEBUGGING.md

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Debugging

Plugin logs all activity into database. Logs are retained for 7 days. You can attach your device to the computer and print logs to console.

  • For iOS open Safari and select from menu Develop ➜ Your Device name
  • For Android launch Chrome about:inspect

Copy paste following snippet into your browser console:

function padLeft(nr, n, str) {
  return Array(n - String(nr).length + 1).join(str || '0') + nr;
}

function printLogs(logEntries, logFormatter, COLORS, MAX_LINES) {
  MAX_LINES = MAX_LINES || 100; // maximum lines to print per batch
  var batch = Math.ceil(logEntries.length / MAX_LINES);
  var logLines = Array(MAX_LINES); //preallocate memory prevents GC
  var logLinesColor = Array(MAX_LINES * 2);
  for (var i = 0; i < batch; i++) {
    var it = 0;
    var logEntriesPart = logEntries.slice((i * MAX_LINES), (i + 1) * MAX_LINES);
    for (var j = 0; j < logEntriesPart.length; j++) {
      var logEntry = logEntriesPart[j];
      logLines[j] = logFormatter(logEntry);
      logLinesColor[it++] = ('background:white;color:black');
      logLinesColor[it++] = (COLORS[logEntry.level]);      
    }
    if (logEntriesPart.length < MAX_LINES) {
      console.log.apply(console, [logLines.slice(0,logEntriesPart.length).join('\n')]
        .concat(logLinesColor.slice(0,logEntriesPart.length*2)));
    } else {
      console.log.apply(console, [logLines.join('\n')].concat(logLinesColor));
    }
  }
}

function printAndroidLogs(logEntries) {
  var COLORS = Object();
  COLORS['ERROR'] = 'background:white;color:red';
  COLORS['WARN'] = 'background:black;color:yellow';
  COLORS['INFO'] = 'background:white;color:blue';
  COLORS['TRACE'] = 'background:white;color:black';
  COLORS['DEBUG'] = 'background:white;color:black';

  var logFormatter = function(logEntry) {
    var d = new Date(logEntry.timestamp);
    var dateStr = [d.getFullYear(), padLeft(d.getMonth()+1,2), padLeft(d.getDate(),2)].join('/');
    var timeStr = [padLeft(d.getHours(),2), padLeft(d.getMinutes(),2), padLeft(d.getSeconds(),2)].join(':');
    return ['%c[', dateStr, ' ', timeStr, '] %c', logEntry.logger, ':', logEntry.message].join('');
  }

  return printLogs(logEntries, logFormatter, COLORS);
}

function printIosLogs(logEntries) {
  var COLORS = Array();
  COLORS[1] = 'background:white;color:red';
  COLORS[2] = 'background:black;color:yellow';
  COLORS[4] = 'background:white;color:blue';
  COLORS[8] = 'background:white;color:black';
  COLORS[16] = 'background:white;color:black';

  var logFormatter = function(logEntry) {
    var d = new Date(logEntry.timestamp * 1000);
    var dateStr = [d.getFullYear(), padLeft(d.getMonth()+1,2), padLeft(d.getDate(),2)].join('/');
    var timeStr = [padLeft(d.getHours(),2), padLeft(d.getMinutes(),2), padLeft(d.getSeconds(),2)].join(':');
    return ['%c[', dateStr, ' ', timeStr, '] %c', logEntry.logger, ':', logEntry.message].join('');
  }

  return printLogs(logEntries, logFormatter, COLORS);
}

Print Android logs:

backgroundGeolocation.getLogEntries(100, printAndroidLogs);

Print iOS logs:

backgroundGeolocation.getLogEntries(100, printIosLogs);

Debugging sounds

event ios android
Exit stationary region Calendar event notification sound dialtone beep-beep-beep
Geolocation recorded SMS sent sound tt short beep
Aggressive geolocation engaged SIRI listening sound
Passive geolocation engaged SIRI stop listening sound
Acquiring stationary location sound "tick,tick,tick" sound
Stationary location acquired sound "bloom" sound long tt beep

NOTE: For iOS in addition, you must manually enable the Audio and Airplay background mode in Background Capabilities to hear these debugging sounds.