In the previous sample, we've created, edited, and deleted a unit. Units (like users, retranslators, unit groups etc.) are independent items. However, there are sub-items in Wialon which exist as a part of an independent item. For instance, a resource can have such sub-items like geofences, notifications, jobs, POIs, drivers etc.

Standard operations with sub-items a bit differ from those with independent items. In this example, we'll examine creating, editing and deleting a POI as a sub-item of a resource.

Let's create a POI using the request resource/update_poi:

<your_wialon_pro_address>/ajax.html?svc=resource/update_poi&
	params={
		"itemId":8,
		"id":0,
		"callMode":"create",
		"n":"gurtam",
		"d":"poi",
		"y":53.91069937030936,
		"x":27.516643322771575,
		"r":100,
		"f":1,
		"c":16733440
	}&ssid=<your_sid>

Response:

[1, {
    "id": 1,
    "n": "gurtam",
    "y": 53.9106993703,
    "x": 27.5166433228,
    "t": 0,
    "i": 6515,
    "e": 16516
}]

Now let's change the name and radius of the new POI:

<your_wialon_pro_address>/ajax.html?svc=resource/update_poi&
	params={
		"itemId":8,
		"id":1,
		"callMode":"update",
		"n":"gurtam_office", 		/* меняем "gurtam" на "gurtam_office" */
		"d":"poi",
		"y":53.91069937030936,
		"x":27.516643322771575,
		"r":50,				/* меняем 100 на 50 */
		"f":1,
		"c":16733440
	}&ssid=<your_sid>

Response:

[1, {
    "id": 1,
    "n": "gurtam_office",
    "y": 53.9106993703,
    "x": 27.5166433228,
    "t": 0,
    "i": 6515,
    "e": 12605
}]

You can check how changes have been applied by making search request.

To delete a POI, use the request update_poi:

<your_wialon_pro_address>/ajax.html?svc=resource/update_poi&
	params={
		"itemId":8,
		"id":1,
		"callMode":"delete"
	}&ssid=<your_sid>

Response:

[1, null]