Implement MinIO presigned upload for advertisement attachments

[Piyush-Goenka]

Context

PR #7196 fixed the E2E test failures by temporarily removing attachment upload functionality from the advertisement creation flow. The backend schema was updated to accept FileMetadataInput[] instead of Upload[], which requires implementing a MinIO presigned upload flow.

Current State

• The ADD_ADVERTISEMENT_MUTATION schema now expects attachments: [FileMetadataInput!] where FileMetadataInput includes:
  • fileHash: String!
  • mimeType: String!
  • name: String!
  • objectName: String!
• The frontend currently collects file objects but does not send them to the backend
• E2E tests skip attachment upload to prevent hanging on MinIO operations in CI

Implementation Requirements

Frontend Changes

1. Presigned URL Request Flow

   • Add logic to request presigned URLs from the backend for file uploads
   • Handle the presigned URL response and prepare for upload

2. MinIO Upload

   • Implement file upload to MinIO using the presigned URL
   • Handle upload progress and errors
   • Construct FileMetadataInput with the required fields after successful upload

3. UI Updates

   • Update AdvertisementRegister.tsx to handle the new upload flow
   • Show upload progress/feedback to users
   • Handle file validation (size, type, etc.)

E2E Test Changes

1. MinIO Mocking

   • Use cy.intercept() to mock MinIO presigned URL endpoints
   • Mock the file upload to MinIO (avoid actual uploads in CI)
   • Mock the backend response with FileMetadataInput data

2. Test Coverage

   • Update cypress/e2e/admin_spec/advertisement.cy.ts to test attachment uploads
   • Restore file upload steps in cypress/pageObjects/AdminPortal/AdvertisementPage.ts
   • Verify successful upload and attachment metadata in created advertisements

Acceptance Criteria

• Frontend successfully requests presigned URLs from the backend
• Files are uploaded to MinIO using presigned URLs
• FileMetadataInput is correctly constructed and sent with ADD_ADVERTISEMENT_MUTATION
• Users can attach files when creating advertisements
• E2E tests properly mock MinIO operations (no actual uploads to MinIO in CI)
• E2E tests verify attachment upload functionality
• All existing tests continue to pass

References

• Original E2E fix PR: #7196
• Original issue: #7176
• PR discussion: fix: fixed E2E tests #7196 (comment)

Technical Notes

This is a feature implementation that was intentionally separated from the E2E test fix to maintain clear separation of concerns and reduce review complexity.

[Piyush-Goenka]

@AiGentsy
I have started working on it to fix it , as it is a sub issue of the E2E fix for which I have just raised a PR.

[Piyush-Goenka]

@palisadoes
Assign this to me.

[adityai0]

@Piyush-Goenka
Take a look at these

[Piyush-Goenka]

where are these failing ?

[Piyush-Goenka]

[Piyush-Goenka]

Was there any specific change that you have made because of which these tests are failing ??

[adityai0]

Was there any specific change that you have made because of which these tests are failing ??

No