nawersilver.blogg.se - Webscraper out of selenium

Webscraper out of selenium for mac#
Webscraper out of selenium install#
Webscraper out of selenium driver#
Webscraper out of selenium code#
Webscraper out of selenium windows#

The CSS selector to determine which HTML element to scrape the data off from.

Webscraper out of selenium driver#

The filepath where to find the chrome driver that selenium will use.In our case, we’re going to define three properties:

We first need to think about what configurable properties we’d like to allow the user to change.

Webscraper out of selenium code#

Code what happens when the processor is triggered.

Add these properties and relationships to the processor on initialization.

The entire processor code can be found here:īroadly speaking, the development process is split into four stages: # Load and scrape data from local HTML fileĭriver.get('C:\your-WhatSoup-dir\source.This highlights the flexibility of Apache NiFi, showing off the ability to pick off information from the Web even when a convenient REST API is not offered. If there’s enough interest I can look into adding this to WhatSoup myself. Use WhatSoup to scrape a local WhatsApp HTML file? Yes, you’d just need to bypass a few functions from main() and load the HTML file into Selenium’s driver, then run the scraping/exporting functions like the below. Use headless? Yes, but I only got this to work with Firefox and not Chrome. There are a few Selenium differences and nuances to get it working, which I can share if there’s interest. Use Firefox instead of Chrome? Yes, not out of the box though.

Changing ‘experimental’ browser settings to allocate more memory.

I’m open to ideas but most of the things I tried didn’t help performance: # of msgs in chat historyīasically, browsers become easily bottlenecked when loading massive amounts of rich data in WhatsApp, which is a WebSocket application and is constantly sending/receiving information and changing the HTML/DOM.

For large chats, I recommend turning your PC’s sleep/power settings to OFF and running the script in the evening or before bed so it loads over night. If you load more than the current record let me know and add yourself to the leader board.ĭepends on the chat size and how performant your computer is, however below is a ballpark range to expect. For reference, my largest chat (~50k messages) uses about 10GB of RAM. The most demanding part of the process is loading the entire chat in the browser, in which performance heavily depends on how much memory your computer has and how well Chrome handles the large DOM load. Follow these instructions to grant chromedriver an exception, then re-run the script.

Webscraper out of selenium for mac#

Note for Mac users: you may get blocked when trying to run the script the first time with a message about chromedriver not being from an identified developer. env file with an entry for DRIVER_PATH and CHROME_PROFILE that specify the directory paths for your ChromeDriver and your Chrome Profile from above steps: # WindowsĭRIVER_PATH = 'C:\path-to-your-driver\chromedriver.exe'ĬHROME_PROFILE = 'C:\Users\your-username\AppData\Local\Google\Chrome\User Data'ĭRIVER_PATH = '/Users/your-username/path-to-your-driver/chromedriver'ĬHROME_PROFILE = '/Users/your-username/Library/Application Support/Google/Chrome/Default' Get your Chrome browser Profile Path by opening Chrome and entering chrome://version into the URL barĬreate an.

Webscraper out of selenium install#

Python3 -m pip install -r requirements.txtĭownload ChromeDriver and extract it to a local folder (such as the env folder)

Webscraper out of selenium windows#

You can change it back afterwards, but for now the script relies on certain HTML elements/attributes that contain English characters/words.Īctivate the virtual environment: # Windows

This needs to be done on your phone (instructions here). Make sure your WhatsApp chat settings are set to English language.

Your terminal supports unicode (UTF-8) characters (for chat emoji’s).

You have some familiarity with setting up and running Python scripts.

, 11:24 AM - Bob Ross: My latest happy ? painting for you. , 08:31 AM - Eddy Harrington: You're the best, Bob ❤ , 08:30 AM - Bob Ross: However you think it should be, that’s exactly how it should be. , 08:30 AM - Eddy Harrington: How about we use WhatSoup ? to backup our cherished chats? , 02:05 PM - Bob Ross: You can do anything you want. WhatsApp Chat with Bob Ross.txt, 02:04 PM - Eddy Harrington: Hey Bob ? Let's move to Signal!

WhatSoup solves these problems by loading the entire chat history in a browser, scraping the chat messages (only text, no media), and exporting it to.

Exports skip the text portion of media-messages by replacing the entire message with instead of for example My favorite selfie of us ?.

Exports are limited up to a maximum of 40,000 messages.

A web scraper that exports your entire WhatsApp chat history.