Gists This is a sample flow for updating a file with the resumable upload using Drive API. Sample situation: In this answer, as a sample situation, it supposes that a text file in Google Drive is updated by the resumable upload with the multiple chunks. And as the method for requesting, I use the curl command. I prepared 2 files for 2 chunks. As the test situation, the 2 chunks of 262,144 bytes and 37,856 bytes are uploaded.