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WebScraper

  • This program can scrap data from websites using different scrapers, and send an email when matches/ changes deadening on the scraper used
  • There are 2 types of scrapers:
    • Generic: Can scrap any website, but might not be as exact
    • Specific: Can scrap only specific websites, but will be more exact

Generic Scrapers

  • Text
  • Diff

Specific Scrapers

  • Cars.com

How to use

Text

  1. Set these specific env variables
  2.  SCRAPER=text # Scraper to use
     URL=<URL> # URL to scrape
     TEXT=<TEXT> # Text to look for
    
  3. Ensure all other required env variables are set

Diff

  1. Set these specific env variables
  2.  SCRAPER=diff # Scraper to use
     URL=<URL> # URL to scrape
     PERCENTAGE=<PERCENTAGE_DIFF> # Percentage difference to look for
    
  3. Ensure all other required env variables are set

Cars.com

  1. Set these specific env variables
  2.  SCRAPER=cars_com # Scraper to use
     URL=https://www.cars.com/shopping/results/ # URL to scrape, must be on the results page, for a specific search
    
  3. Ensure all other required env variables are set

Required env variables

SLEEP_TIME_SEC= # Time to sleep between each scrape
SENDER_EMAIL= # Email to send from
FROM_EMAIL= # Name to send from i.e. '"Web Scraper" <no-reply@jstockley.com>'
RECEIVER_EMAIL= # Email to send to
PASSWORD= # Password for the sender's email
SMTP_SERVER= # SMTP server to use
SMTP_PORT= # SMTP port to use
TLS= # True/False to use TLS

Running multiple of the same scraper

To run 2+ scrapers of the same type, i.e. 2 diff scrapers, make sure the host folder mapping is different Ex:

  diff-scraper-1:
    image: jnstockley/web-scraper:latest
    volumes:
      - ./diff-scraper-1-data/:/app/data/
    environment:
      - TZ=America/Chicago
      - SCRAPER=diff
      - URL=https://google.com
      - PERCENTAGE=5
      - SLEEP_TIME_SEC=21600

  diff-scraper-2:
    image: jnstockley/web-scraper:latest
    volumes:
      - ./diff-scraper-2-data/:/app/data/
    environment:
      - TZ=America/Chicago
      - SCRAPER=diff
      - URL=https://yahoo.com
      - PERCENTAGE=5
      - SLEEP_TIME_SEC=21600

Release files for js-web-scraper 1.2.18

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Source distribution (sdist)

Source distribution for js-web-scraper 1.2.18
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Built distribution (wheel)

Table of built distributions (wheels) for js-web-scraper 1.2.18
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js_web_scraper-1.2.18-py3-none-any.whl Python 3 none any Details

Total release size: 40.2 kB

Release files / js_web_scraper-1.2.18.tar.gz

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1.2.20

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