This is an API only Ruby on Rails application used to scrape h1, h2, h3 tags and links present in a URL.

POST '/v1/websites', params: domain (submit with http/https)
GET  '/v1/wsbites/:key', a key of the job task
GET '/v1/websites', to display all the websites presently scraped

To make the application run faster, I have used background jobs to scrape the result. When a user submits a domain, a job would be created. The result URL would be send as response if the job has been created. The user can check the result url for the status as well.

Submit a domain

# command
curl -X POST "http://localhost:3000/v1/websites?domain=https://simple.wikipedia.org/wiki/Wikipedia"

{"result":{"domain":"https://simple.wikipedia.org/wiki/Wikipedia","status":"PENDING","result_url":"http://localhost:3000/v1/website/389b76561f52f5f0337742b68354c106"}}

Fetch Result

# command
curl http://localhost:3000/v1/websites/389b76561f52f5f0337742b68354c106

Result: https://gist.github.com/coderhs/9d84b96875fa996a7a80195cbe96425f

Display all Website

curl http://localhost:3000/v1/websites

[
  {
    domain: "http://csnipp.com",
    status: "COMPLETED",
    result_url: "http://localhost:3000/v1/websites/3bae0b276b4c475c1e6bd43f2266b80e"
  },
  {
    domain: "https://redpanthers.co",
    status: "COMPLETED",
    result_url: "http://localhost:3000/v1/websites/e14dd438487e385054747f1091e86a2e"
  },
  {
    domain: "https://simple.wikipedia.org/wiki/Wikipedia",
    status: "COMPLETED",
    result_url: "http://localhost:3000/v1/websites/389b76561f52f5f0337742b68354c106"
  }
]

Implement Priority Queue: Presently all the scraping is done through a single queue. Which is not good when a lot of users are using our website. So we need to create a priority queue system where we can let people submit to another queue if they need something quick.