screenpng

An HTTP server for taking full-page screenshots of web pages in PNG format via Selenium WebDriver.

Built on top of the pog7x/ssfactory library. Supports Firefox and Chrome in headless mode.

Stack

• Go 1.19, gorilla/mux, cobra + viper, zap
• Docker image: pog7x/gobasebrowser

Running (Docker)

docker build -t screenpng .
docker run -v $(pwd):/screenpng -p 8099:8099 -it screenpng

API

POST /screenshot

Accepts a list of URLs and saves screenshots as PNG files.

{
  "items": [
    { "url": "https://example.com", "name": "example.png" },
    { "url": "https://go.dev/dl/", "name": "godev.png" }
  ]
}

Configuration

The configuration file is passed via the -c flag (example: configs/.screenpng-config.dev.yml).

Parameter	Description	Default (dev)
use_browser	Browser (firefox / chrome)	firefox
webdriver_port	WebDriver port	8089
server_listen_addr	Server address	0.0.0.0:8099
server_read_timeout	Read timeout	3s
server_write_timeout	Write timeout	3s

License

MIT