georged19 / json-gofpdf

Parse json and run through gofpdf

json-gofpdf

json-gofpdf runs JSON schema through gofpdf to generate PDFs in server-side.

Features

• Maps JSON schema to gofpdf functions.
• Inject data into your schema layouts for dynamic information.

API

	logic := `[
		{
			"new": {
				"orientation": "P",
				"unit": "mm",
				"size": "A4",
				"fontDir": ""
			}
		},
		{
			"addpage": {}
		},
		{
			"setfont": {}
		},
		{
			"cell": {
				"width": 40.0,
				"height": 10.0,
				"text": "Hello, World!"
			}
		}
	]`
	
	pdfparser2, err := jsongofpdf.New(jsongofpdf.JSONGOFPDFOptions{Logic: logic})
	if err != nil {
		fmt.Println(err)
	}
	pdf2 := pdfparser2.GetPDF()
	pdf.OutputFileAndClose("hello.pdf")

Supported functions

• AddPage
• AliasNbPages
• Body
• Cell
• CellFormat

json-gofpdf's Issues

Need to extend API to simplify generation

e.g.

"text": {
   "position": "absolute",
   "x": 10.0,
   "y": 10.0,
   "padding": 
   "margin":
}

"text": {
   "position": "relative",
   "fill": "#ff",
   "background": "#000"
}

Virtual render / Live Render

It may be worth having a virtual renderer which is separate from the live render so multiple passes can be done to render the desired result. This may be particularly useful in cases of creating rows with overflowing text.

Render a table without having passed in data before hand

Need to decouple table rendering from data rendering

Table Generation

Instead of formfunc we should change this to tablefunc which will pull in the tabledata rows.

type Table struct {
rows []row
}

type Row struct {
cells []cell
}

type Cell struct {
key string
title string
value string
media []media
}

Then in the tablefunc it can loop over every row and we can output the form fields / values.
Also this could mean we could have a row filled with all the fields from the form for batch reports, where a single report each field would have it's own row.

{
"tablefunc": {

}
}