Using R to Download Coinbase API Data

As a follow up to our article where we demonstrate how to download Coinbase historical price data via their API in Python, this short script will allow you to do the same thing but in R. This was requested by some of our users as an alternative to Python; and there are not many R scripts freely available out there for things like this. (*As with before, please follow the Coinbase market data policy and only use for personal use*).

Effectively this is what this script is doing:
    1. Reset global variables and import the libraries we are going to use
    2. Create a function that accepts a crypto Pair and filename as arguments
    3. Call the Coinbase API for Daily granularity and rename the columns to correct values
    4. Write a CSV file based on the filename/path chosen

This script is extremely simple, and hopefully beneficial in your cryptocurrency analysis

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