Along with every message you can send additional metadata. Some of this metadata is also used by the AI engine to determine the response.

Parameter	Description	Type
language	Language code (ISO) of the message, not the user	string
timezone	Timezone of the message (where it was sent). Number of hours from UTC	number
params	Bag of parameters to use within the AI	params object

{
  "type": "message.send",
  "payload": {
    "threadId": "EXAMPLE327348ed3bd1439e7b",
    "speech": "I want to book a flight between Amsterdam and Toronto",
    "originator": {
      "name": "John Doe",
      "role": "external"
    },
    "metadata": {
      "language": "en-US",
      "timezone": -6,
      "params": {
        "seats": [{
          "value": "Business class"
        }]
      }
    }
  }
}

Params object

The params object resembles the matched result created by the AI engine using entity classification. Each param itself is a list of [{ value }] objects.

{
  "passengerCount": [{
    "value": "2"
  }]
}

{
  "food": [{
    "value": "food-item-22332",
    "match": "Pizza Hawaii"
  }, {
    "value": "food-item-44525",
    "match": "Pizza Calzone"
  }]
}