Hi Shen,

thanks a lot for the informative article.

I have indeed played around with Google Finance, Iex Cloud and Alphavantage before actually setting up a potential solution using the (maybe?) less known Tiingo API; might be worth adding it to the list as it provides great features even for just using it on a free account, which i found quite convenient.

I wrote a brief post on a potential Python implementation here:

https://towardsdatascience.com/how-to-automate-financial-data-collection-with-python-using-tiingo-api-and-google-cloud-platform-b11d8c9afaa1