integer/array trend.get(object parameters)

The method allows to retrieve trend data according to the given parameters.

This method is available to users of any type. Permissions to call the method can be revoked in user role settings. See User roles for more information.


(object) Parameters defining the desired output.

The method supports the following parameters.

Parameter Type Description
itemids ID/array Return only trends with the given item IDs.
time_from timestamp Return only values that have been collected after or at the given time.
time_till timestamp Return only values that have been collected before or at the given time.
countOutput boolean Count the number of retrieved objects.
limit integer Limit the amount of retrieved objects.
output query Set fields to output.

Return values

(integer/array) Returns either:

  • an array of objects;
  • the count of retrieved objects, if the countOutput parameter has been used.


Retrieving item trend data


           "jsonrpc": "2.0",
           "method": "trend.get",
           "params": {
               "output": [
               "itemids": [
               "limit": "1"
           "id": 1


           "jsonrpc": "2.0",
           "result": [
                   "itemid": "23715",
                   "clock": "1446199200",
                   "num": "60",
                   "value_min": "0.165",
                   "value_avg": "0.2168",
                   "value_max": "0.35",
           "id": 1


CTrend::get() in ui/include/classes/api/services/CTrend.php.