documentSettings - A JSON object which contains the settings of the template (pageHEXColour, documentHeight, documentWidth).
pageHEXColour - An optional string which contains the HEX page colour of the document in HEX. The default value is 'FFFFFF'.
documentHeight - An optional string relating to the height of the document (in cm). The default value is '10cm'.
documentWidth - An optional string relating to the width of the document (in cm). The default value is '10cm'.
documentContent - A JSON object which contains the content of the template (encodeData).
encodeData - A required string which contains the encoded data for the Barcode.