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

    See also:

    This method may return historical data of a deleted entity if this data has not been removed by the housekeeper yet.

    (object) Parameters defining the desired output.

    The method supports the following parameters.

    (integer/array) Returns either:

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

    Retrieving item history data

    Return 10 latest values received from a numeric(float) item.

    Request:

    1. {
    2.     "jsonrpc": "2.0",
    3.     "result": [
    4.         {
    5.             "itemid": "23296",
    6.             "clock": "1351090996",
    7.             "value": "0.0850",
    8.             "ns": "563157632"
    9.         },
    10.         {
    11.             "itemid": "23296",
    12.             "clock": "1351090936",
    13.             "value": "0.1600",
    14.             "ns": "549216402"
    15.         },
    16.         {
    18.             "value": "0.1800",
    19.             "ns": "537418114"
    20.         },
    21.         {
    22.             "itemid": "23296",
    23.             "clock": "1351090816",
    24.             "value": "0.2100",
    25.             "ns": "522659528"
    26.         },
    27.         {
    28.             "itemid": "23296",
    29.             "clock": "1351090756",
    30.             "value": "0.2150",
    31.             "ns": "507809457"
    32.         },
    33.         {
    34.             "itemid": "23296",
    35.             "clock": "1351090696",
    36.             "value": "0.2550",
    37.             "ns": "495509699"
    38.         },
    39.         {
    40.             "itemid": "23296",
    41.             "value": "0.3600",
    42.             "ns": "477708209"
    43.         },
    44.         {
    45.             "itemid": "23296",
    46.             "clock": "1351090576",
    47.             "value": "0.3750",
    48.             "ns": "463251343"
    49.         },
    50.         {
    51.             "itemid": "23296",
    52.             "clock": "1351090516",
    53.             "value": "0.3150",
    54.             "ns": "447947017"
    55.         },
    56.         {
    57.             "itemid": "23296",
    58.             "clock": "1351090456",
    59.             "value": "0.2750",
    60.             "ns": "435307141"
    61.         }
    62.     ],
    63.     "id": 1

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