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scrapper's Introduction

tech ideas

  • use existing scraper framework
  • use scraper APIs

scrapping challenges

  • there are many publishers out there each with different page to scrap, some expose json API some just render content on the backend
  • scrapping may be impossible to handle when done from single IP
  • issues with rate limiting

pros of actor model

  • actors can be spawned on different machines
  • actors can be spawned on different IP
  • messages to scraper actor can be scheduled to be sent at different times
  • multiple scraper actors can be spawned to work on different pages
  • actors can persist state and can be restarted if they fail or if the machine they are running on fails

issues found during the build

  • top parameter doesn't work within request to Frontiers, but that's not a problem with actors because I can spawn as many actors I want and give them pages to work on

benchmarks

  • Frontiers indexing time 15 minutes

questions about actor system

  • how to configure persistence?
  • scheduling - is there a way to schedule message only if prev one was finished processing?

scrapper's People

Contributors

robertlyson avatar

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