trigger.get JSON:

{
 "jsonrpc": "2.0",
 "method": "trigger.get",
 "params": {
 "group": "XXXXXXXXXXXXXXXXXX",
 "filter": {
 "state": 0,
 "status": 0,
 "description": ["XXXXXXXXXXXXXXXXXX", "XXXXXXXXXXXXXXXXXX"]
 },
 "monitored": true,
 "expandDescription": true,
 "skipDependent": true,
 "selectHosts": ["name", "host_id"],
 "output": [
 "description",
 "priority",
 "value"
 ]
 },
 "auth": "XXXXXXXXXXXXXXXXXXXXXXXXX",
 "id": 1
}

private function errorMessage($source, $pos) {
 if (!isset($source[$pos])) {
 return ($pos == 0) ? _('macro is empty') : _('unexpected end of macro');
 }

/*for ($p = $pos, $chunk = '', $maxChunkSize = 50; isset($source[$p]); $p++) {
 if (0x80 != (0xc0 & ord($source[$p])) && $maxChunkSize-- == 0) {
 break;
 }
 $chunk .= $source[$p];
 }

if (isset($source[$p])) {
 $chunk .= ' ...';
 }*/

return 'incorrect syntax...';
 }