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Overview

Blueprint offers 6 supported field types. Field Types inform the user interface how to sort and display data.
Setting a field type does not transform or validate data out-of-the-box. Try @flatfile/autocast to automatically convert the data in the Sheet to match the type defined by the Blueprint.

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string (default)

Defines a property that should be stored and read as a basic string. 
{
  "key": "sku",
  "label": "Product Code",
  "type": "string"
},
string

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number

Defines a property that should be stored and read as either an integer or floating point number. Numbers are displayed using a monospaced font. Database engines should look at the configuration to determine ideal storage format. 
{
  "key": "price",
  "label": "Retail Price",
  "type": "number"
},
number

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enum

Defines an enumerated list of options for the user to select from. Matching tooling attempts to resolve incoming data assignment to a valid option. There is no limit to number of options you can define, but when either the source (file) or destination (Blueprint) list contains more than 100 enums, our mapping AI will now utilize a simplified algorithm to optimize for performance. For large lists, we recommend you use the reference lookup types. enum
Using config.allow_custom does not result in these being recognized as valid enum values. Consequently, they continue to be flagged as errors. To use custom enum values anyway, end users will choose the option to “leave values as is” on the mapping screen.
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config.allow_custom
boolean
default:"false"
Permit the user to create new options for this specific field.
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config.options
required
An array of valid options the user can select from
{
  "key": "status",
  "label": "Status",
  "type": "enum",
  "config": {
    "options": [
      {
        "value": "active",
        "label": "Active"
      },
      {
        "value": "inactive",
        "label": "Disabled",
        "color": "#ff0000",
        "icon": "fa fa-ban",
        "metadata": {
          "foo": "bar"
        }
      }
    ]
  }
},

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reference

Defines a reference to another Sheet. Links should be established automatically by the matching engine or similar upon an evaluation of unique or similar columns between datasets. Learn more about Relationships.
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config.ref
required
The full path reference to another Sheet/table configuration. Must be in the same Workbook.
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config.relationship
required
The type of relationship this defines. Can be has-one
reference

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boolean

A true or false value type. This field type will be displayed as a slider. 
{
  "key": "is_active",
  "label": "Active",
  "type": "boolean"
}
boolean

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date

Store a field as a UTC date. Date fields interpret incoming dates with Month (MM) preceding the Day (DD) in all formats.
In order to use “European” dates, formatted as DD-MM-YYYY, where the Day precedes the Month, we recommend using a string field and a Record Hook to interpret the date appropriately.

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Field Options

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key
string
required
The system name of this field. Primarily informs JSON and egress structures.
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type
required
One of string, number, boolean, date, enum, reference. Defines the handling of this property.
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label
string
default:"key"
A user-facing descriptive label designed to be displayed in the UI such as a table header.
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description
string
A long form description of the property intended to be displayed to an end user.
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constraints
array
default:"[]"
An array of system level Validation Rules meant to be applied after hooks are run.
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config
object
default:"{}"
Configuration relevant to the type of column. See property documentation below.
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metadata
object
default:"{}"
Arbitrary object of values to pass through to hooks and egress