Multipart Upload

Testing

Testing S3 Multipart Uploads: Chunked Uploads, Resumable Uploads, and Large File Handling

S3 multipart upload is a three-phase protocol: initiate (get an upload ID), upload parts (minimum 5MB each), and complete (assemble the parts). Testing it requires verifying each phase independently, handling aborts, and testing resumable upload state management. moto supports multipart upload end-to-end. Key Takeaways Multipart upload is