Implement websocket-based certificate verification flow

[onlydustapp]

Overview

Implement a certificate verification flow that leverages WebSocket for real-time updates. This feature will enable employers to initiate certificate verification and allow graduates to approve the sign-off using a secret key. The backend will support two main endpoints: one for initiating the verification and another for processing the approval.

Objectives & Flow

1. Employer Initiates Verification

   • Endpoint: POST /api/verify/initiate
   • Request Structure:

     {
       "certificate_id": "uuidv4_string",
     }
     

   • Response Structure:

     {
       "verification_id": "new_uuidv4",
       "graduate_link": "https://localhost:3000/verify/:verification_id",     
      }

2. Graduate Approval

   • Endpoint: POST /api/verify/approve
   • Request Structure:

     {
       "verification_id": "uuid_from_link",
       "approval_key": "user_input_key"
     }

   • WebSocket Event: Emit an event with the user inputted key.

# Technical Considerations

• WebSocket Connection: Ensure a stable WebSocket connection for real-time notifications.
• Security: Securely handle and store secret keys and hashes.
• Scalability: Design the endpoints and WebSocket flow to support concurrent verifications without performance degradation.

Definition of Done

• Employers can initiate verification and receive a proper response with a verification ID, a graduate link, and WebSocket connection details.
• Graduates can approve the verification using a secret key.
• Successful approvals correctly trigger real-time WebSocket events to notify employers.
• Code and integration tests are added to ensure the feature works as expected.

[RichoKD]

Could I take over this issue? I have extensive experience with websockets

[JayWebtech]

@RichoKD Hello, any update on this?

[RichoKD]

I'll open a PR soon

[devwithsammy]

I’d like to resolve this.