String values can provide additional information to your dots. As a basic example, let's suppose you’re deploying a weather station that provides you the weather status as a string value, e.g. "cloudy". In order to receive that string in your Ubidots account, the weather status must be sent in the context of the dot.
To learn more about displaying the context of a dot in the Ubidots Dashboard, check out this guide.
curl -X POST 'https://industrial.api.ubidots.com/api/v1.6/devices/my-new-device'
-H "X-Auth-Token: BBFF-Rfcgaxns6HlVb155WA0RhSY85xNDmB"
-H "Content-Type: application/json"
-d '{"weather":{"value": 1, "context":{"weather-status": "sunny"}}}'