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Geofencing API

Get alert rule

Service version: 1Last edit: 2022.09.01

Decommission notice

December 16, 2025

  • This service will be decommissioned on January 31, 2027.
  • All endpoints will be withdrawn following a 12 months deprecation period.
  • There is no recommended migration path.

Purpose

This endpoint shows details about the Alert Rule.

Request data

HTTPS method: GET

  • Constants and parameters enclosed in curly brackets { } must be replaced with their values.
  • Please see the following Request parameters section with the required and optional parameters tables for their values. The generic request format is as follows.

URL request format

get
URL request format
https://{baseURL}/geofencing/{versionNumber}/alerts/rules/{ruleId}?key={Your_API_Key}

curl command request format

get
curl command request format
curl 'https://{baseURL}/geofencing/{versionNumber}/alerts/rules/{ruleId}?key={Your_API_Key}'

Request parameters

The following table describes the parameters that can be used in a request.

  • Required parameters must be used or the call will fail.
  • Optional parameters may be used.
  • The order of request parameters is not important.

Note: There are no optional parameters in this endpoint.

Required parameters

Description

baseURL
string

The base URL for calling the API.
Value: api.tomtom.com

versionNumber
string

Service version.
Value: 1

ruleId
string

The UUID of the alert rule.

key
string

An API Key valid for the requested service.
Value: Your valid API Key.

Response data

Response body

Response body format - JSON
{
  "id": "The id of the alert rule",
  "name": "The name of the alert rule",
  "object": "The id of the object",
  "project": "The id of the project",
  "fence": "The id of the fence",
  "alertType": "Type of the alert",
  "alertRuleConstraints": {
    "key": "value"
  },
  "notificationGroup": "The id of the notification group",
  "enabled": true
}

Response fields

The following table describes all of the fields that can appear in a response.

Primary fields

Field

Description

id
string

The UUID of the Alert Rule.

name
string

The name of the Alert Rule.

object
string

The UUID of the Object or * for any Object in Configuration.

project
string

The UUID of the Project or * for any Project in Configuration.

fence
string

The UUID of the Fence or * for any Fence in Configuration.

alertType
string

The type of the Alert Rule.
Possible values:

  • "TRANSITION": When an Object entered or exited the Fence.

  • "DWELL": When an Object stays too long inside a Fence.

  • "OBJECT_COUNT": When the maximum number of Objects in a Fence is exceeded.

  • "PROXIMITY": When the distance between an Object and a Fence is smaller than the provided threshold.

alertRuleConstraints
object

Contains information specific to this Alert Rule.

notificationGroup
string

The UUID of the owned group in the Notification Service to send the Alert Rule.

enabled
boolean

The Boolean value that says if an Alert Rule is enabled or not.
Values:

  • true - Alert is enabled

  • false - Alert is disabled

alertRuleConstraints object

Field

Description

transitionType
string

The type of the Transition to Alert.
Possible values:

  • "ENTER": When an Object just entered the Fence.

  • "EXIT": When an Object just exited the Fence.

  • "ALL": When an Object just entered or exited the Fence.

This field exists for the "TRANSITION" Alert Type.

maxDwellTime
integer

Maximum time (in seconds) an Object can stay inside a Fence before an Alert is raised.
This field exists for the "DWELL" Alert type.

maxObjectCount
integer

Maximum number of Objects that can be present in a Fence at one time before an Alert is raised.
This field exists for the "OBJECT_COUNT" Alert type.

proximityDistance
integer

Distance from the fence within which the alarm will be triggered. The value is expressed in meters.
This field exists for the "PROXIMITY" Alert type.

proximitySide
string

Side of the fence in which the proximity will be measured.
Possible values:

  • "INSIDE": When proximity will be measured inside a Fence.

  • "OUTSIDE": When proximity will be measured outside a Fence.

This field exists for the "PROXIMITY" Alert type.

Response codes

Code

Meaning & possible causes

200

OK

404

Not found: Alert with the provided id does not exist.

Examples

Get details of the specific Transition Alert Rule.

URL request example

get
URL request example
https://api.tomtom.com/geofencing/1/alerts/rules/bf40406b-1d8d-4218-bcf2-e67b83063d02?key=PJD7y0G5AFj9Jiok6F0tIK16NiWYotb3

Response body example

Response body example - JSON
{
  "id": "bf40406b-1d8d-4218-bcf2-e67b83063d02",
  "name": "Airport transition alert",
  "project": "47b10143-0b43-4803-a931-98cb1e595520",
  "fence": "*",
  "object": "fc94720b-23cd-4ddf-a560-00f8518e43c9",
  "alertType": "TRANSITION",
  "alertRuleConstraints": {
    "transitionType": "ALL"
  },
  "notificationGroup": "358a3348-26d6-4d9d-8d5a-c3de41b26f63",
  "enabled": true
}

Get details of the specific Dwell Time Alert Rule

URL request example

get
URL request example
https://api.tomtom.com/geofencing/1/alerts/rules/a5e0e694-851e-4b6e-9c35-0dee908165c1?key=PJD7y0G5AFj9Jiok6F0tIK16NiWYotb3

Response body example

Response body example - JSON
{
  "id": "a5e0e694-851e-4b6e-9c35-0dee908165c1",
  "name": "24-hour parking #5 alert",
  "project": "47b10143-0b43-4803-a931-98cb1e595520",
  "fence": "0b16633b-7b2b-4fd6-a834-f36c2250ab66",
  "object": "*",
  "alertType": "DWELL",
  "alertRuleConstraints": {
    "maxDwellTime": 600
  },
  "notificationGroup": "8e34613a-2324-4749-ac9d-25bf7a91d218",
  "enabled": true
}

Get details of the specific Object Count Alert Rule

URL request example

get
URL request example
https://api.tomtom.com/geofencing/1/alerts/rules/f19df201-09f1-4ac2-84ce-913658c32c2e?key=PJD7y0G5AFj9Jiok6F0tIK16NiWYotb3

Response body example

Response body example - JSON
<pre class="prettyprint linenums"><code>{
  "id": "f19df201-09f1-4ac2-84ce-913658c32c2e",
  "name": "City ​​parking #7 with a capacity of 20 cars",
  "project": "47b10143-0b43-4803-a931-98cb1e595520",
  "fence": "0b16633b-7b2b-4fd6-a834-f36c2250ab66",
  "alertType": "OBJECT_COUNT",
  "alertRuleConstraints": {
    "maxObjectCount": 20
  },
  "notificationGroup": "8e34613a-2324-4749-ac9d-25bf7a91d218",
  "enabled": true
}

Get details of the specific Proximity Alert Rule

URL request example

get
URL request example
https://api.tomtom.com/geofencing/1/alerts/rules/274c7ff0-8030-4b67-a239-aa9f62cefef0?key=PJD7y0G5AFj9Jiok6F0tIK16NiWYotb3

Response body example

Response body example - JSON
{
  "id": "274c7ff0-8030-4b67-a239-aa9f62cefef0",
  "name": "Driver is approaching the end of the safety zone",
  "project": "47b10143-0b43-4803-a931-98cb1e595520",
  "fence": "0b16633b-7b2b-4fd6-a834-f36c2250ab66",
  "object": "*",
  "alertType": "PROXIMITY",
  "alertRuleConstraints": {
    "proximityDistance": 1000,
    "proximitySide": "OUTSIDE"
  },
  "notificationGroup": "8e34613a-2324-4749-ac9d-25bf7a91d218",
  "enabled": true
}