2.1 KiB
GoChain
GoChain is a web server written in Go that provides functionality for taking screenshots of websites with caching, generating QR codes, and acting as a web proxy.
API
GET | /
Takes a screenshot of a website with a resolution of 1366x768. It only supports one URL parameter: url.
Example URL: http://gochain.local/?url=https://naomi.win
URL Parameters:
- url: string - The address of the website to take a screenshot of.
GET | /qr.png
Generates a black and white QR code image. It only supports one URL parameter: text.
Example URL: http://gochain.local/qr.png?text=Join us > [ https://naomi.win ]!!
URL Parameters:
- text: string - The text to be encoded in the QR code.
ANY | /proxy/:url
Proxies the website specified by :url and returns its content.
Example URL: http://gochain.local/proxy/https://github.com
URL Parameters: none
POST | /shot
A more advanced way of taking screenshots of websites. Supports custom screen resolutions.
Example Code (python requests):
import requests
requests.post('http://gochain.local/shot', json={'url': 'https://naomi.win', 'screen': [2560, 1440]})
URL Parameters: none
JSON Parameters:
- url: string - The address of the website to take a screenshot of.
- screen: [2]int64 - The screen resolution (first argument is width, second argument is height: [width, height]).
- delay: int - Custom delay before taking a screenshot. By default, the value of the default delay is set.
Environment Variables
The following environment variables can be configured:
PORT: Sets the port on which the web server listens.COOLDOWN: Sets the delay before taking another screenshot. This acts as a rate limiter.WAIT_BEFORE_SCREENSHOT: Specifies the number of seconds Chromium waits after navigating to a website before taking a screenshot. This allows the website to fully load and prevents capturing a blank screen.CACHE_CLEANUP_INTERVAL: Sets the interval in seconds at which the screenshot cache folder is cleaned up.PROXY: Specifies the address of the proxy server for Chromium.