title: Scrapy Crawl multiple spiders subsequently
body: <p>I'm a little new to scrapy and I'm stuck at a point. I want to restart a spider when it gets closed.</p>
  
  <p>What I'm trying to implement here is I'm getting URLs from the database I wrote my view in a way that whenever I send a "scrapy crawl xyz" request the start_request will get one URL[next URL] that is different from what was passed in the previous request from the database.  </p>
  
  <p>The problem is if there are four URLS in the database I need to run "scrapy crawl xyz" 4 times but I want to avoid that and I am trying to fire "scrapy crawl xyz" when the current "spider_closed" get called at the end of spider. Please help </p>