rendering

Documentation

Overview

Package rendering provides a function to render HTML to images or HTML after JS execution. It uses the Chrome Debug Protocol through the rod package. It will download a headless Chrome version if needed that matches the current platform.

If the environment variable SND_CHROME_DEBUG=1 it will start the chrome instances in non-headless mode.

Index

• Constants
• func ExtractHTML(url string, selector string) (string, error)
• func InitBrowser()
• func RenderHTML(html string, width int) (image.Image, error)
• func RenderURL(url string, width int) (image.Image, error)
• func Shutdown() error

Constants

const IdleRequestTimeout = 5

const ReadyTimeout = 5

Functions

func ExtractHTML

func ExtractHTML(url string, selector string) (string, error)

ExtractHTML opens the URL, lets the page executes and returns the HTML.

func InitBrowser

func InitBrowser()

func RenderHTML

func RenderHTML(html string, width int) (image.Image, error)

RenderHTML renders the element #content into an image.

func RenderURL

func RenderURL(url string, width int) (image.Image, error)

RenderURL opens the URL and renders the element #content into an image.

func Shutdown

func Shutdown() error