Adds a key/value pair to an extraction, where the value is a constant that's not necessarily present in the document. This lets you include information, such as vendor or form names, that may be lacking from the document. For example, imagine a vendor solely issues 6-month policy quotes, so they never state the policy duration in the document. Use the Constant method to add policy_duration_months: 6.

Parameters

The following parameters are in the computed field's global Method parameter:

key	value	description
id (required)	`constant`
value (required)	string	The value to return in the field's key/value pair output

Examples

The following example shows adding a form name and policy duration as constants to a config's output.

Config

{
  "fields": [
    {
      "id": "policy_period",
      "anchor": "policy period",
      "method": {
        "id": "documentRange",
        "includeAnchor": true,
        "wordFilters": [
          "policy period"
        ],
        "stop": {
          "text": "for customer",
          "type": "startsWith"
        },
      }
    }
  ],
  "computed_fields": [
    {
      "id": "form_name",
      "method": {
        "id": "constant",
        "value": "quote_auto_insurance_anyco"
      }
    },
      {
        "id": "policy_duration_months",
        "type": "number",
        "method": {
          "id": "constant",
          "value": "6"
        }
      }
    ]
  }

Example document

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Example document	Download link

Output

{
  "policy_period": {
    "type": "string",
    "value": "April 14, 2021 - Oct 14, 2021"
  },
  "form_name": {
    "value": "quote_auto_insurance_anyco",
    "type": "string"
  },
  "policy_duration_months": {
    "source": "6",
    "value": 6,
    "type": "number"
  }
}