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Updating a Single Field
To update only a single field of a Variable, please use the PATCH method with the parameters that need to be changed.

Request

To update all attributes of a Variable please make a PUT request to the following URL:

HTTP Method	URL
PUT	`https://industrial.api.ubidots.com/api/v2.0/variables/<variable_id>/`

To update all attributes of a Variable in a Device please make a PUT request to the following URL:

HTTP Method	URL
PUT	`https://industrial.api.ubidots.com/api/v2.0/devices/<device_key>/variables/<variable_key>`

Path Parameters

Parameter	Type	Description
variable\_id	String	The ID of the Variable

Query Parameters

Parameter	Type	Use	Description
token	String	Authentication	Authentication Token can optionally be sent as a query parameter.

Body Parameters

Parameter	Type	Required?	Default Value	Description
label	String	Yes	N/A (required)	The API label of Variable
name	String	No	Same as `label`	Name of the Variable
description	String	No	`""`	Description of Variable
tags	String Array	No	`[]`	Variable tags
properties	Object	Yes	N/A (required)	Variable properties
unit	String	No	`""`	Unit of Variable.
syntheticExpression	String	No	`""`	Synthetic Expression of Variable

Header

Parameter	Required?	Description
X-Auth-Token	Yes	Authentication Token of account

$ curl -X PUT 'https://industrial.api.ubidots.com/api/v2.0/variables/<variable_id>' \
 -H 'Content-Type: application/json' \
 -H 'X-Auth-Token: oaXBo6ODhIjPsusNRPUGIK4d72bc73' \
 -d '{
    "label": "variable2",
    "name": "Variable 2",
    "description": "my variable 2",
    "tags": ["blue", "yellow"],
    "properties": {},
    "icon": "trash",
    "unit": "meters"
}'

{
    "createdAt": "2019-12-18T14:38:38.354415Z",
    "syntheticExpression": "",
    "description": "my variable 2",
    "device": {
        "id": "6e309da44fc8455a9cceb5aa",
        "label": "first-device",
        "name": "First Device",
        "url": "https://industrial.api.ubidots.com/api/v2.0/devices/6e309da44fc8455a9cceb5aa"
    },
    "icon": "trash",
    "id": "5dfa39ee1a9ca53020c69391",
    "label": "variable2",
    "lastActivity": null,
    "lastValue": {},
    "name": "Variable 2",
    "properties": {},
    "tags": ["blue", "yellow"],
    "type": "raw",
    "unit": "meters",
    "url": "https://industrial.api.ubidots.com/api/v2.0/variables/5dfa39ee1a9ca53020c69391",
    "valuesUrl": "https://industrial.api.ubidots.com/api/v1.6/variables/5dfa39ee1a9ca53020c69391/values"
}

{
    "code": 400001,
    "message": "Validation Error.",
    "detail": {
        ....
    }
}

{
    "code": 401001,
    "message": "Authentication credentials were not provided.",
    "detail": "Authentication credentials were not provided."
}

Response

Returns a Variable object of the updated Variable.