What are a few ways in which we can achieve serverless file upload for larger files. I can think of the following ways (will write detailed answers to implement these in comments later if I do not provide a link now). Alternate approaches/ implementations or good implementations of these approaches welcomed. For simplicity, I will assume we are on Google Cloud Functions because it has an HTTP interface but feel free to add lambda specific answers as well.

1. Upload files directly to Google Cloud Storage or S3
2. Create HTTP Cloud Function and try a file upload but we are limited to a 10MB HTTP request but we need larger files
3. Modify approach 2 to upload larger files in smaller chunks of 10 MB