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WWW Scraper

Introduction

The main reason behind this project is an idea comparing products prices, but for sure this will be useful for many different needs. Using it you can easily check when your interesting things are discounted or generally when your interesting text will change from one to another.

Home Page

Micro services

Project is using lerna and because of that is splitted into many micro-services:

  • frontend-admin - admin panel, places where you can manage your queries and results of them
  • micro-rest-api - middleware, node server, using for manipulating the data in database
  • micro-scrapper - node deamon responsible for checking texts on pages

Development

Local command to run docker-compose

# run development
docker-compose -f .config/docker/docker-compose.yml up --force-recreate --build
# run production
docker-compose -f .config/docker/docker-compose.prod.yml up --force-recreate --build

Tips:

# remove all containers and docker images
docker system prune

# Dockerfile run from different location
CMD [ "npm", "--prefix", "packages/app1-server", "start" ]

# Build docker image for a different platform
# armhf | amd64
docker build . -t my_service --platform=linux/armhf

Used technologies

Server

  • docker / docker-compose
  • mongo-express

Project

  • lerna - to keep project splited by functionality
  • react / cra / antd-design - to easy develop UI
  • nodejs / express - to run REST server and scraper deamon
  • puppeteer and cherio - for e2e tests (scraping data from websites)
  • node-cron - to run scraper periodically
  • mongodb - to store queries and scraped results