Barcode

A barcode of a value made from text and fields.

Property	Required	Description
value	Yes	1 to 100 text and field nodes, without formatting, as for a QR code
symbology	Yes	The kind of barcode

The barcode is stretched to fill its box: make the box wide enough for the bars.

symbology	Barcode	Its value
code_25	Code 25	Only digits
code_39	Code 39	Only A-Z, 0-9, spaces and - . $ / + %
code_93	Code 93	Only ASCII characters
code_128	Code 128	Only ASCII characters
ean_13	EAN-13	12 digits, or 13 with the check digit
ean_8	EAN-8	7 digits, or 8 with the check digit
upc_a	UPC-A	11 digits, or 12 with the check digit

A submission fails with “A barcode has no value.” when the value comes out empty, and with a message saying the value can’t be encoded as that barcode when it doesn’t fit its rules.

Example

A Code 128 barcode of the shipment’s tracking number:

{
  "id": "tracking_barcode",
  "type": "barcode",
  "x": 0,
  "y": 0,
  "width": 252,
  "height": 60,
  "symbology": "code_128",
  "value": [
    { "type": "field", "attrs": { "expression": "shipment.tracking_number" } }
  ]
}