It is possible to send several values with the same timestamp. This is useful to save data upload costs and to create lower rom memory scripts. You can use the global timestamp as follows:

Topic:

/v2.0/devices/<device_label>

Field	Value	Required
Host	industrial.api.ubidots.com	Yes
Port	1883/8883 (Non-TLS/TLS)	Yes
Username	Your Ubidots Token	Yes
Password	Any character or leave blank	No
Quality of Service	0 or 1	No

Payload Structure:

{
  "temperature": 10,
  "humidity": 90,
  "pressure": 78,
  "timestamp": 1634311791000
}

{
  "temperature": {
    "value": 10,
    "timestamp": 1634378596000,
    "context": {
      "status": "cold"
    }
  },
  "humidity": {
    "value": 90,
    "context": {
      "status": "High humidity"
    }
  },
  "pressure": {
    "value": 78,
    "context": {
      "status": "Normal"
    }
  },
  "timestamp": 1634311791000
}

🚧
timestamp hierarchy
If a timestamp is provided within a Dot, it will ignore the global timestamp and use the provided one instead. e.g. the "temperature" variable will receive a 10 with the timestamp: 1634378596000 instead of the global timestamp: 1634311791000.

Example

📘
The bash examples from this section make use of the Eclipse Mosquitto library, if you wish to test them please install it using the official instructions.

Send data to multiple Variables with global timestamp
Update multiple variables with a global timestamp that is applied to all values.

$ mosquitto_pub \
-h 'industrial.api.ubidots.com' \
-t '/v2.0/devices/weather-station' \
-u 'BBFF-Rfcgaxns6HlVb155WA0RhSY85xNDmB' \
-p 1883 \
-q 1 \
-m '{
  "temperature": 10,
  "humidity": 90,
  "pressure": 78,
  "timestamp": 1634311791000
}'

Send data to multiple Variables with global timestamp
Update multiple variables with a global timestamp that is applied to all Dots.

$ mosquitto_pub \
-h 'industrial.api.ubidots.com' \
-t '/v2.0/devices/weather-station' \
-u 'BBFF-Rfcgaxns6HlVb155WA0RhSY85xNDmB' \
-p 1883 \
-q 1 \
-m '{
  "temperature": {
    "value": 10,
    "timestamp": 1634378596000,
    "context": {
      "status": "cold"
    }
  },
  "humidity": {
    "value": 90,
    "context": {
      "status": "High humidity"
    }
  },
  "pressure": {
    "value": 78,
    "context": {
      "status": "Normal"
    }
  },
  "timestamp": 1634311791000
}'