Wazirx-Data-Scrapper - To Scrape Live Crypto Prices From Wazirx

NOTE: This code is for educational purposes only.

About

• Wazirx is a leading Indian cryptocurrency exchange.
• Wazirx already provides api for gathering data : https://docs.wazirx.com/#public-rest-api-for-wazirx
• However this code is simple to implement.
• Please read wazirx terms and conditions and robot.txt before using the code from https://wazirx.com/
• wazirx robot.txt: https://wazirx.com/robots.txt

Information on finding coinpair

• The exchange url has two parts. The BASE URL and COINPAIR
• eg: coinpair in https://wazirx.com/exchange/BTC-INR is BTC-INR.
• Find the coinpair you want by visiting wazirx crypto exchange and selecting the coin.

Package versions: Tested versions of packages

• bs4 =='4.10.0'
• selenium =='4.1.0'
• numpy == '1.20.3'
• pandas == '1.3.4'

Requirements to use the scrapper:

• You need chromedriver.exe and Google Chrome which are compatible with each other.
• This program is tested on : Google Chrome, Version 98.0.4758.102 (Official Build) (64-bit) and it's chrome driver
• Download compatible chrome driver from : https://chromedriver.chromium.org/downloads

Further Improvements to be done:

• Speedup in phantomJS instead of chromedriver.exe : Reference: https://www.guru99.com/selenium-with-htmlunit-driver-phantomjs.html#:~:text=HtmlUnit%20and%20PhatomJS-,HTMLUnitDriver,known%20as%20Headless%20Browser%20Driver.
• Multithread for multiple coin pages at once. From a list of coins in coins.config file.
• Improve interval capturing system with more accuracy.
• Testing more and Handle exceptions.
• Close browser sessions properly
• Show warning if internet is very slow or if it is not working.
• Telegram api for price alerts.

Advanced experimentation:

• BS4 is used for parsing the data from selinium. Implementing custom parser for the website may reduce lag times due to processing. This needs lot of modifications in the code.

*** IN CASE OF THIS ERROR ***

SessionNotCreatedException: Message: session not created: This version of ChromeDriver only supports Chrome version 97 Current browser version is 99.0.4844.82 with binary path C:\Program Files\Google\Chrome\Application\chrome.exe

*** Download compatible chrome driver from https://chromedriver.chromium.org/downloads ***

Usage Example: With SHIB-INR currency pair

shib = wzx(coinpair='SHIB-INR', MONITOR=False, DEBUG_MODE=False)

coinpair: default-> 'BTC-INR' : coinpair in https://wazirx.com/exchange/BTC-INR is BTC-INR. 
Find the coinpair you want by visiting wazirx crypto exchange and selecting the coin.

MONITOR (BOOL): default->False :False will open chrome browser in headless mode (silent) True will open the chrome browser in foreground, 
DEBUG_MODE: default->False: To get more output.

USAGE: 
coin = wzx(coinpair= 'SOL-INR') # Loads https://wazirx.com/exchange/SOL-INR for scrapping.

For entire data in one go, use:
coin.fetch_all()

For individual data:
coin.price_info()
coin.market_depth_and_order_volume()
coin.trade_history()

shib.view_details()

shib.fetch_all()

   refreshes the page and returns dictionary of dataframes of:
    scrape_info
    price
    market_depth
    order_volume
    trade_history

Other methods:

shib.price() # To see last price, volume, high and low values
shib.refresh() # To refresh webpage
shib.trade_history() # Last 10 recent trades
shib.order_book() # Market Depth and Order Volume information
shib.close_webdriver() # To free memory

See docstrings for more info.