v3.5.0

Breaking change

• no longer call

const { start, query } = scrape(config, options, params)

the library is now used like so

const scraper = new ScraperProgram(config, options, params)
scraper.start()

• query arguments changed from query(args: { scraper: string[], groupBy: string }) to query(scrapers: string[], { groupBy: string })

Enhancements/fixes

• add a scraper lock file to prevent two scrapers from clashing over the same directory
• tests have better coverage of emitter values
• add class methods for emitter emit events (stop, stopScraper, useRateLimiter)
• error if commands are used unexpectedly (e.g. calling stop() before start())