Define your own computed field method to transform extracted document data using JsonLogic. Can return multiple fields.

Parameters

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

key	value	description
id (required)	`customComputationGroup`	This method has access to the `parsed_document` object at verbosity = 0.
jsonLogic (required)	JsonLogic object	A JsonLogic rule that transforms the output of Field objects and outputs multiple fields.

Examples

The following example shows using the Custom Computation Group method in combination with the Pick Values operator to copy fields from the parent fields object into sections.

Config

{
  "fields": [
    {
      /* capture raw policy # to copy into 
      each claim  */
      "id": "_raw_policy_number",
      "type": "number",
      "anchor": "policy number",
      "method": {
        "id": "label",
        "position": "right"
      }
    },
    {
      /* capture raw policy name to copy into 
      each claim  */
      "id": "_raw_policy_name",
      "anchor": "policy name",
      "method": {
        "id": "row",
      }
    },
    /*    each claim starts with "claim number" and ends with 
     "Date of claim" */
    {
      "id": "claims_sections",
      "type": "sections",
      "range": {
        "anchor": {
          "match": {
            "type": "includes",
            "text": "claim number"
          },
        },
        "stop": {
          "type": "includes",
          "text": "Date of claim",
          "isCaseSensitive": true
        }
      },
      /* return each claim as object containing claim # 
      and other fields */
      "fields": [
        {
          "id": "claim_number",
          "type": "number",
          "anchor": {
            "match": {
              "type": "startsWith",
              "text": "Claim number:",
              "isCaseSensitive": true
            }
          },
          "method": {
            "id": "label",
            "position": "right"
          }
        },
        
        /* to access the `_raw_policy_number` field from
          inside the `claims_sections field`, use
          ../../ syntax to traverse levels of scope in the
          JSON output. e.g., use
          ../_raw_policy_name since it's in a parent array
          */
        /* as an alternative to this syntax, see the copy_to_section method */
        
        {
          "method": {
            /* use the custom computation group to output multiple fields */
            "id": "customComputationGroup",
            "jsonLogic": {
              /* copies the specified fields from the parent object
                 to each section */
              "pick_fields": [
                {
                  "var": "../"
                },
                [
                  "_raw_policy_number",
                  "_raw_policy_name"
                ]
              ]
              }
            }
          }
    
        ]
    }
    ]
  }

Example document
The following image shows the example document used with this example config:

Example document	Download link

Output

{
  "_raw_policy_number": {
    "source": "5501234567",
    "value": 5501234567,
    "type": "number"
  },
  "_raw_policy_name": {
    "type": "string",
    "value": "National Landscaping Solutions"
  },
  "claims_sections": [
    {
      "claim_number": {
        "source": "1223456789",
        "value": 1223456789,
        "type": "number"
      },
      "_raw_policy_number": {
        "source": "5501234567",
        "value": 5501234567,
        "type": "number"
      },
      "_raw_policy_name": {
        "type": "string",
        "value": "National Landscaping Solutions"
      }
    },
    {
      "claim_number": {
        "source": "9876543211",
        "value": 9876543211,
        "type": "number"
      },
      "_raw_policy_number": {
        "source": "5501234567",
        "value": 5501234567,
        "type": "number"
      },
      "_raw_policy_name": {
        "type": "string",
        "value": "National Landscaping Solutions"
      }
    },
    {
      "claim_number": {
        "source": "6785439210",
        "value": 6785439210,
        "type": "number"
      },
      "_raw_policy_number": {
        "source": "5501234567",
        "value": 5501234567,
        "type": "number"
      },
      "_raw_policy_name": {
        "type": "string",
        "value": "National Landscaping Solutions"
      }
    },
    {
      "claim_number": {
        "source": "7235439210",
        "value": 7235439210,
        "type": "number"
      },
      "_raw_policy_number": {
        "source": "5501234567",
        "value": 5501234567,
        "type": "number"
      },
      "_raw_policy_name": {
        "type": "string",
        "value": "National Landscaping Solutions"
      }
    },
    {
      "claim_number": {
        "source": "8235439211",
        "value": 8235439211,
        "type": "number"
      },
      "_raw_policy_number": {
        "source": "5501234567",
        "value": 5501234567,
        "type": "number"
      },
      "_raw_policy_name": {
        "type": "string",
        "value": "National Landscaping Solutions"
      }
    }
  ]
}