Hi everyone,
I created a step by step tutorial for logging data from an ESP8266 device to a Google Sheets spreadsheet without the need for any third party services:
https://github.com/StorageB/Google-Sheets-Logging
I have several NodeMCU devices that are logging data, and wanted to document the process of setting them up to make it easier on myself when adding new devices. I just wanted to share this for others that may find it useful. It should also work with other ESP8266 devices like Wemos D1 and Adafruit Feather HUZZAH.