# drule.get

### Description

`integer/array drule.get(object parameters)`

The method allows to retrieve discovery rules according to the given
parameters.

### Parameters

`(object)` Parameters defining the desired output.

The method supports the following parameters.

|Parameter|Type|Description|
|---------|----|-----------|
|dhostids|string/array|Return only discovery rules that created the given discovered hosts.|
|druleids|string/array|Return only discovery rules with the given IDs.|
|dserviceids|string/array|Return only discovery rules that created the given discovered services.|
|selectDChecks|query|Return discovery checks used by the discovery rule in the `dchecks` property.<br><br>Supports `count`.|
|selectDHosts|query|Return the discovered hosts that the discovery rule created in the `dhosts` property.<br><br>Supports `count`.|
|limitSelects|integer|Limits the number of records returned by subselects.<br><br>Applies to the following subselects:<br>`selectDChecks` - results will be sorted by `dcheckid`;<br>`selectDHosts` - results will be sorted by `dhostsid`.|
|sortfield|string/array|Sort the result by the given properties.<br><br>Possible values are: `druleid` and `name`.|
|countOutput|flag|These parameters being common for all `get` methods are described in detail in the [reference commentary](/manual/api/reference_commentary#common_get_method_parameters).|
|editable|boolean|^|
|excludeSearch|flag|^|
|filter|object|^|
|limit|integer|^|
|output|query|^|
|preservekeys|flag|^|
|search|object|^|
|searchByAny|boolean|^|
|searchWildcardsEnabled|boolean|^|
|sortorder|string/array|^|
|startSearch|flag|^|

### Return values

`(integer/array)` Returns either:

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

### Examples

#### Retrieve all discovery rules

Retrieve all configured discovery rules and the discovery checks they
use.

Request:

``` {.java}
{
    "jsonrpc": "2.0",
    "method": "drule.get",
    "params": {
        "output": "extend",
        "selectDChecks": "extend"
    },
    "auth": "038e1d7b1735c6a5436ee9eae095879e",
    "id": 1
}
```

Response:

``` {.java}
{
    "jsonrpc": "2.0",
    "result": [
        {
            "druleid": "2",
            "proxy_hostid": "0",
            "name": "Local network",
            "iprange": "192.168.3.1-255",
            "delay": "5",
            "nextcheck": "1348754327",
            "status": "0",
            "dchecks": [
                {
                    "dcheckid": "7",
                    "druleid": "2",
                    "type": "3",
                    "key_": "",
                    "snmp_community": "",
                    "ports": "21",
                    "snmpv3_securityname": "",
                    "snmpv3_securitylevel": "0",
                    "snmpv3_authpassphrase": "",
                    "snmpv3_privpassphrase": "",
                    "uniq": "0",
                    "snmpv3_authprotocol": "0",
                    "snmpv3_privprotocol": "0"
                },
                {
                    "dcheckid": "8",
                    "druleid": "2",
                    "type": "4",
                    "key_": "",
                    "snmp_community": "",
                    "ports": "80",
                    "snmpv3_securityname": "",
                    "snmpv3_securitylevel": "0",
                    "snmpv3_authpassphrase": "",
                    "snmpv3_privpassphrase": "",
                    "uniq": "0",
                    "snmpv3_authprotocol": "0",
                    "snmpv3_privprotocol": "0"
                }
            ]
        },
        {
            "druleid": "6",
            "proxy_hostid": "0",
            "name": "Zabbix agent discovery",
            "iprange": "192.168.1.1-255",
            "delay": "3600",
            "nextcheck": "0",
            "status": "0",
            "dchecks": [
                {
                    "dcheckid": "10",
                    "druleid": "6",
                    "type": "9",
                    "key_": "system.uname",
                    "snmp_community": "",
                    "ports": "10050",
                    "snmpv3_securityname": "",
                    "snmpv3_securitylevel": "0",
                    "snmpv3_authpassphrase": "",
                    "snmpv3_privpassphrase": "",
                    "uniq": "0",
                    "snmpv3_authprotocol": "0",
                    "snmpv3_privprotocol": "0"
                }
            ]
        }
    ],
    "id": 1
}
```

### See also

-   [Discovered
    host](/manual/api/reference/dhost/object#discovered_host)
-   [Discovery
    check](/manual/api/reference/dcheck/object#discovery_check)

### Source

CDRule::get() in
*frontends/php/include/classes/api/services/CDRule.php*.