SE-315 Cloud Computing
Semester Project Report
BESE 13 B
Submitted To: Dr. Qaiser Riaz
NAME CMS ID
Asna Maqsood 426990
Jaweria Manahil 419118
Muhammad Owais Khan 404262
Sara Adnan Ghori 411228
Umar Farooq 406481
Contents
Architecture diagram: ..................................................................................................................... 3
API Specifications .......................................................................................................................... 3
1. Storage Management Service ................................................................................................. 3
2. Usage Monitoring Service ...................................................................................................... 5
3. User Account Management Service ........................................................................................ 6
4. View Generator Service .......................................................................................................... 8
Key Features and Design Decisions ............................................................................................... 9
Load Testing:................................................................................................................................. 10
The working URL: .........................................................................................................................11
GITHUB LINK: .............................................................................................................................11
Architecture diagram:
API Specifications
The application comprises four key microservices, each offering distinct functionalities to
support user operations, video storage, and monitoring. Below is a comprehensive breakdown of
the API specifications:
1. Storage Management Service
This service manages video uploads, deletions, user storage, and bandwidth allocation.
• File Upload
Uploads a video file to Google Cloud Storage. Ensures that user quotas for storage and
bandwidth are not exceeded. If successful, updates the user’s storage and bandwidth
usage in the database and logs the operation.
Endpoint: POST /video
Request Body:
"user_id": "string",
"vname": "string",
"bandwidth": "float",
"video": "file"
}
Response:
o Success: Returns the video URL and status.
o Failure: Returns an error message indicating quota limits or other issues.
• Delete File
Deletes a video from cloud storage and updates the user’s storage record in the database.
Logs the operation for monitoring purposes.
Endpoint: DELETE /video
Request Body:
{
"user_id": "string",
"vname": "string",
"storage": "float"
}
Response:
o Success: Confirms the deletion with status OK.
o Failure: Returns an error message.
• Fetch User Info
Retrieves the storage and bandwidth usage of a user by their ID.
Endpoint: GET /userinfo/:user_id
Response:
{
"id": "string",
"storage_used": "float",
"bandwidth": "float"
• Video Size Retrieval
Fetches the size of a specific video in MB by querying the cloud storage metadata.
Endpoint: POST /videosize
Request Body:
"vname": "string"
Response:
"status": "OK",
"vsize": "float"
• Fetch All Videos
Returns a list of all videos uploaded by a user along with their signed URLs for access.
Endpoint: GET /fetch-videos/:user_id
Response:
"videos": [
{
"name": "string",
"url": "string"
2. Usage Monitoring Service
This service logs user actions (e.g., upload, delete) for monitoring and analytics purposes.
• Log User Actions
Records details of user actions, including the operation performed, the video involved,
and a timestamp.
Endpoint: POST /logit
Request Body:
"user_id": "string",
"video": "string",
"info": "string"
}
Response:
o Success: Acknowledges the log entry.
o Failure: Returns an error message.
3. User Account Management Service
This service handles user authentication, registration, and profile retrieval.
• Signup
Registers a new user in the system. If successful, returns the user’s profile details.
Endpoint: POST /signup
Request Body:
"username": "string",
"name": "string",
"email": "string",
"password": "string",
"contact": "string"
}
Response:
"status": "OK",
"info": {
"id": "string",
"username": "string",
"name": "string",
"email": "string",
"contact": "string"
}
}
• Login
Authenticates user credentials and returns profile details on success.
Endpoint: POST /login
Request Body:
"username": "string",
"password": "string"
}
Response:
"status": "OK",
"info": {
"id": "string",
"username": "string",
"name": "string",
"email": "string",
"contact": "string"
• Fetch User Details
Retrieves a user’s basic profile details by their ID.
Endpoint: GET /fetch-user/:user_id
Response:
{
"status": "OK",
"info": {
"id": "string",
"username": "string",
"name": "string",
"email": "string",
"contact": "string"
• Fetch User ID by Username
Retrieves the user ID corresponding to a given username.
Endpoint: GET /id/:username
Response:
"status": "OK",
"id": "string"
4. View Generator Service
This service delivers the static front-end pages, enabling users to interact with the system.
• Static Pages
Serves static files for key user operations.
Endpoints:
o / (Homepage)
o /login (Login page)
o /signup (Signup page)
o /home?id=:user_id (User dashboard)
Response:
HTML content of the respective page.
Key Features and Design Decisions
1. Scalability and Modularity:
The system follows a microservices architecture, separating concerns into distinct
services (e.g., storage management, user account handling). This modularity facilitates
scaling individual components independently based on load.
2. Google Cloud Integration:
Leveraged Google Cloud Storage for efficient and scalable video storage. Functions for
uploading, deleting, and streaming are optimized with features like resumable uploads
and signed URLs.
3. User Storage and Bandwidth Management:
Implemented stringent checks to ensure users stay within their allocated storage (50MB)
and bandwidth limits. Dynamic updates to user records in MySQL ensure accuracy.
4. Frontend Integration:
Built a user-friendly frontend in the View Generator Service to enable non-technical users
to interact seamlessly with backend features. The interface includes pages for login,
signup, and video management.
5. Logging and Monitoring:
A dedicated Usage Monitoring Service logs user actions, providing data for usage
analysis and debugging.
6. Error Handling and Validation:
Comprehensive error handling for API endpoints ensures robust functionality. Each
service validates inputs to prevent invalid data from disrupting the workflow.
7. Technology Stack:
o Backend: Node.js, Express.js
o Database: MySQL
o Frontend: Static HTML served via Node.js
o Cloud: Google Cloud Storage for file storage
8. Security Considerations:
o Restricted user actions with authentication and unique user IDs.
o Signed URLs ensure secure video access with time-bound constraints.
Load Testing:
The working URL:
http://34.47.196.178:3000
GITHUB LINK:
https://github.com/Umar-Farooq-2112/Cloud-Video-App.git
