edgarwebcrawler

utillity for crawling edgar and reading RSS feeds

To install run

go get github.com/itay1542/edgarwebcrawler

To get started with sampling the RSS feed:

first initialize a discarder. This is the built in default discarder that holds all seen links in memory and discards them by the RSS Guid. this one will hold 100 urls in memory

SAMPLE_SIZE = 100
discarder := edgarwebcrawler.NewInMemorySampleDiscarderById(SAMPLE_SIZE)

next initialize the url provider. you want the rss sample size to match to discarder's cache size. the second parameter is the sampling interval (in seconds), and lastly the discarder

urlProvider := edgarwebcrawler.NewUrlFromRssProvider(
  fmt.Sprintf("https://www.sec.gov/cgi-bin/browse-edgar?action=getcurrent&type=4&start=-1&count=%d&output=rss", SAMPLE_SIZE),
  2,
  discarder,
  )

now all you need to do is create a string channel for the urls and start the provider

urlChannel := make(chan string, SAMPLE_SIZE)
err := urlProvider.Start(urlChannel)
if err != nil {
  panic(err)
}
for {
  select {
    case url := <-urlChannel:
      // handle the url
  }
}