Block reference

A print request combines one or more blocks in the order they should appear on paper. Every block requires a type property.

Text and layout

• text prints styled text.
• row places text cells across one line.
• line prints a horizontal separator.
• br inserts a line break.

Codes and media

• barcode prints a supported one-dimensional barcode.
• qrcode prints a QR code.
• image prints base64 or optionally remote image data.

Status and structure

• token highlights a titled code or value.
• progress prints a bar or stepped progress indicator.
• timeline prints ordered labelled events.

Data visualization

• heatmap prints a labelled grayscale value matrix.
• lineChart compares one or more numeric series.
• areaChart prints one filled numeric series.
• barChart compares labelled values.
• stackedAreaChart prints stacked non-negative series.

The schemas on these pages use the service's default request limits. A deployment can override limits such as the maximum text length.