Overwriting Several Google Documents by 2 Text Files using Google Apps Script
This is a sample script for overwriting several Google Documents by 2 text files using Google Apps Script.
Before you run this sample script, please install a GAS library of FetchApp.
As a sample situation, it supposes to overwrite 2 existing Google Documents by 2 text files using the method of files.update Drive API v3. In the current stage, the batch request of Drive API cannot use the file media. This sample script might become a workaround for updating files by quasi batching request with the asynchronous process.