assignment-quiz-work-submission

Student assignment submission with S3 presigned URLs enables direct browser uploads to S3, bypassing backend bottlenecks. This Skill handles the complete flow, generating secure upload links and storing original file metadata separately to ensure proper filename preservation.

Downloaded files from S3 lose original filenames when timestamp prefixes overwrite metadata. This Skill solves filename loss by tracking original filenames separately from S3 keys, ensuring teachers download student assignment submissions with proper file names preserved.

Merging duplicate student submission attempts consolidates fragmented records into a single view for manual grading. This Skill handles merged attempt record processing to eliminate duplicate entries, preventing missing files and simplifying quiz grading workflows.

Handling nullable assignment scoring in an educational backend requires supporting ungraded student attempts without breaking database constraints. This Skill satisfies functional requirements for nullable scoring fields, allowing teachers to manually grade assignments after reviewing downloaded submissions.

You can use this S3 upload flow for an existing learning management system backend requiring secure file submissions. It applies to educational platforms needing presigned upload capabilities, metadata tracking, and consolidated student attempt views for manual grading.