Documentation Index
Fetch the complete documentation index at: https://docs.svalync.com/llms.txt
Use this file to discover all available pages before exploring further.
Web Scraping Setup
Learn how to set up and configure your web scraping environment for optimal performance.
Prerequisites
Before starting:
- Basic understanding of HTML/CSS
- Knowledge of web protocols
- Familiarity with selectors
- Understanding of rate limiting
Installation
{
"environment": {
"proxy_enabled": true,
"headless_browser": true,
"javascript_enabled": true,
"cookies_enabled": true
}
}
2. Set Default Configuration
{
"default_config": {
"timeout": 30000,
"retry_attempts": 3,
"wait_for_selectors": true,
"follow_redirects": true
}
}
Browser Configuration
Headless Chrome Settings
{
"browser": {
"type": "chrome",
"headless": true,
"args": [
"--no-sandbox",
"--disable-setuid-sandbox",
"--disable-dev-shm-usage"
],
"viewport": {
"width": 1920,
"height": 1080
}
}
}
Proxy Configuration
Setting Up Proxies
{
"proxies": {
"enabled": true,
"list": [
{
"host": "proxy1.example.com",
"port": 8080,
"username": "user1",
"password": "pass1"
}
],
"rotation": {
"enabled": true,
"interval": 100
}
}
}
Rate Limiting
Default Rate Limits
{
"rate_limits": {
"global": {
"requests_per_second": 2
},
"per_domain": {
"example.com": {
"requests_per_second": 1,
"max_concurrent": 2
}
}
}
}
Authentication
Setting Up Authentication
{
"auth": {
"type": "basic",
"credentials": {
"username": "user",
"password": "pass"
}
}
}
{
"headers": {
"User-Agent": "Custom Scraper 1.0",
"Accept": "text/html,application/xhtml+xml",
"Accept-Language": "en-US,en;q=0.9",
"Connection": "keep-alive"
}
}
Cache Configuration
Setting Up Caching
{
"cache": {
"enabled": true,
"type": "redis",
"ttl": 3600,
"config": {
"host": "localhost",
"port": 6379
}
}
}
Error Handling
Configure error handling:
{
"error_handling": {
"retry_codes": [429, 503],
"max_retries": 3,
"backoff": {
"initial": 1000,
"multiplier": 2,
"max": 10000
}
}
}
Monitoring
Set up monitoring:
{
"monitoring": {
"enabled": true,
"metrics": ["requests_per_minute", "success_rate", "average_response_time"],
"alerts": {
"error_rate_threshold": 0.1,
"response_time_threshold": 5000
}
}
}
