MARKETPLACE SERVICES

Comprehensive Services Directory

Connect with verified professionals across all architecture, engineering, consultancy and project management disciplines. All services are available on request for quote basis.

Architecture Services

Engineering Services

Consultancy Services

Project Management

Backend Development & Software Solutions

Professional Model Upload Center

Upload your architectural designs, engineering models, and project portfolios to our marketplace. Share your expertise with clients across Uganda and beyond.

Design Documents

CAD files, blueprints, technical drawings

3D Models

BIM models, 3D renders, visualizations

Project Portfolios

Case studies, completed projects, testimonials

Join Uganda's Premier Marketplace

Whether you're a professional looking to showcase your services, a company ready to expand your market reach, or a client seeking expert solutions - our marketplace connects all stakeholders under Serene Creations Ltd's trusted management.

Individual Professionals

Architects, engineers, consultants

Companies & Firms

Architecture firms, engineering companies

Clients

Individuals, businesses, developers

All marketplace activities are supervised and managed by Serene Creations Ltd - ensuring quality, trust, and professional standards.

Technical Specifications

Complete System Architecture

Dive deep into our comprehensive backend infrastructure with detailed specifications and capabilities

Authentication Service Architecture

Multi-layer authentication with comprehensive security features

Supported Authentication Methods

Local Authentication
  • Email and password-based authentication
  • Strong password requirements (8+ chars, mixed case, numbers, symbols)
  • Account lockout after 5 failed attempts (30-minute lockout)
  • Secure password reset via email links (2-hour expiry)
Firebase Integration
  • Google Firebase Auth integration
  • Automatic user creation for first-time users
  • Token verification and profile sync
  • Custom token support
Social Authentication
  • Google, Facebook, Twitter login support
  • Automatic profile data import
  • Email verification bypass for verified accounts
  • Unified user profile management

Security & Token Management

JWT Token System
  • Access tokens (1 hour expiry, configurable)
  • Refresh tokens (30 days, automatic rotation)
  • RS256 algorithm with secure key management
  • Real-time user status validation
Role-Based Access Control
User Roles:
  • • User (default)
  • • Architect
  • • Engineer
  • • Client
  • • Admin
  • • Super Admin
Permissions:
  • • Project Management
  • • File Operations
  • • User Management
  • • Financial Operations
  • • System Administration
Account Security
  • Email verification (24-hour token expiry)
  • Bcrypt password hashing with salt
  • Session management and monitoring
  • Audit logging for security events

Multi-Channel Notification System

Comprehensive communication platform with enterprise features

Email Service (SendGrid)

12+ Dynamic Templates:
Welcome Emails Role-specific
Email Verification 24hr expiry
Password Reset 2hr expiry
Project Notifications Real-time
Payment Confirmations Instant
Commission Alerts Automated
Features:
  • Multi-language support
  • Dynamic personalization
  • A/B testing capability
  • Delivery analytics

Push Notifications

Web Push Features:
  • VAPID key authentication
  • Service worker integration
  • Custom notification actions
  • Device management
  • TTL and urgency control
  • Topic-based messaging
24h
Default TTL
3
Priority Levels

SMS & In-App Messaging

SMS (Twilio Integration):
  • Uganda/East Africa optimization
  • International number formatting
  • Delivery confirmation tracking
  • Cost optimization strategies
In-App Notifications:
  • Real-time WebSocket delivery
  • Persistent storage
  • Read/unread status
  • Category-based filtering
20+ Notification Types
Across 6 categories

Enterprise Security Framework

Multi-layered security with advanced threat protection

Input Validation & Protection

XSS Protection
  • Comprehensive input sanitization
  • HTML tag stripping and encoding
  • JavaScript injection prevention
  • Content Security Policy headers
SQL Injection Prevention
  • Parameterized query enforcement
  • Pattern-based detection
  • Input validation with whitelisting
  • Query monitoring and logging

Rate Limiting & Monitoring

Multi-Tier Rate Limiting
API Limits:
  • • 100 req/15min (General)
  • • 10 req/15min (Auth)
  • • 50 uploads/hour
  • • 20 emails/hour
Features:
  • • Redis-backed
  • • User/IP based
  • • Exponential backoff
  • • Whitelist support
Security Monitoring
  • Real-time threat detection
  • Suspicious activity alerts
  • Comprehensive audit logs
  • Automated incident response

Database & Infrastructure

Optimized schemas and deployment architecture

PostgreSQL Schema

Core Tables:
  • • Users (with auth fields)
  • • User Sessions (JWT tracking)
  • • Email Logs (delivery tracking)
  • • Notifications (in-app)
  • • Push Subscriptions
  • • API Keys
  • • Audit Logs
Optimizations:
  • Strategic indexing
  • Row-level security
  • Automated triggers
  • Performance views

Redis Caching

Cache Types:
  • • Session storage
  • • Rate limiting counters
  • • User preferences
  • • Notification queues
  • • API response cache
5min
Preferences TTL
30d
Session TTL

Deployment Setup

Infrastructure:
  • Docker containerization
  • PM2 process management
  • Nginx reverse proxy
  • SSL/HTTPS enforcement
Monitoring:
  • Health check endpoints
  • Performance metrics
  • Log aggregation
  • Automated alerts
API Documentation

RESTful API Endpoints

Comprehensive API documentation with interactive examples and detailed specifications

Authentication API

User registration, login, and token management

POST /api/auth/register

Register a new user account with role-based access

Request Body:
{
  "email": "[email protected]",
  "password": "SecurePass123!",
  "firstName": "John",
  "lastName": "Architect",
  "role": "architect",
  "phone": "+256701234567",
  "specializations": ["residential", "commercial"],
  "licenseNumber": "ARB12345"
}
Response (201 Created):
{
  "success": true,
  "user": {
    "id": "uuid-here",
    "email": "[email protected]",
    "firstName": "John",
    "lastName": "Architect",
    "role": "architect",
    "emailVerified": false
  },
  "message": "Registration successful. Please check your email."
}
POST /api/auth/login

Authenticate user and receive JWT tokens

Request:
{
  "email": "[email protected]",
  "password": "SecurePass123!",
  "loginMethod": "local"
}
Response:
{
  "success": true,
  "user": {...},
  "tokens": {
    "accessToken": "jwt-token",
    "refreshToken": "refresh-token",
    "tokenType": "Bearer",
    "expiresIn": "1h"
  }
}
POST /api/auth/refresh

Refresh expired access token using refresh token

POST /api/auth/verify-email

Verify user email address with token

Notification API

Multi-channel notification management

GET /api/notifications

Retrieve user notifications with pagination and filtering

Query Parameters:
?page=1
?limit=20
?unreadOnly=true
?category=project
?startDate=2025-01-01
?endDate=2025-12-31
Required Headers:
Authorization: Bearer <access-token>
Content-Type: application/json
POST /api/notifications/send

Send multi-channel notification to users

Request Body:
{
  "type": "PROJECT_UPLOADED",
  "recipients": ["user-id-1", "user-id-2"],
  "data": {
    "projectName": "Modern Villa Design",
    "architectName": "John Architect",
    "category": "residential",
    "projectId": "project-uuid"
  },
  "channels": ["email", "push", "in_app"],
  "priority": "medium"
}
PUT /api/notifications/{id}/read

Mark specific notification as read

GET /api/notifications/stats

Get notification statistics and counts

Security Headers

All API responses include comprehensive security headers:
Strict-Transport-Security: max-age=31536000; includeSubDomains; preload
Content-Security-Policy: default-src 'self'; script-src 'self'
X-Content-Type-Options: nosniff
X-Frame-Options: DENY
X-XSS-Protection: 1; mode=block
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 95
X-RateLimit-Reset: 1735689600

Rate Limiting

  • 100 requests per 15 minutes (General API)
  • 10 requests per 15 minutes (Authentication)
  • 50 uploads per hour
  • 20 emails per hour

Error Codes Reference

Code
HTTP Status
Category
AUTH_REQUIRED 401 Authentication
TOKEN_EXPIRED 401 Authentication
INSUFFICIENT_PERMISSION 403 Authorization
RATE_LIMIT_EXCEEDED 429 Rate Limiting
VALIDATION_ERROR 400 Validation
EMAIL_NOT_VERIFIED 403 Verification

SDK & Integration Examples

Ready-to-use code examples for popular platforms

JavaScript/Node.js

// Authentication example
const response = await fetch('/api/auth/login', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    email: '[email protected]',
    password: 'password123'
  })
});

const data = await response.json();

if (data.success) {
  localStorage.setItem('token', data.tokens.accessToken);
  // Use token for subsequent requests
}

Python

import requests

# Send notification
url = 'https://api.serenecreations.org/api/notifications/send'
headers = {
    'Authorization': f'Bearer {access_token}',
    'Content-Type': 'application/json'
}

data = {
    'type': 'PROJECT_UPLOADED',
    'recipients': ['user-id'],
    'data': {
        'projectName': 'New Project',
        'category': 'residential'
    },
    'channels': ['email', 'push']
}

response = requests.post(url, headers=headers, json=data)
result = response.json()

cURL

curl -X POST https://api.serenecreations.org/api/auth/register \
  -H "Content-Type: application/json" \
  -d '{
    "email": "[email protected]",
    "password": "SecurePass123!",
    "firstName": "John",
    "lastName": "Architect",
    "role": "architect",
    "phone": "+256701234567"
  }'

# Response handling
# Check HTTP status code and parse JSON response

Interactive API Testing

Test our APIs directly from your browser with our interactive documentation platform

50+
API Endpoints
99.9%
Uptime SLA
<100ms
Avg Response
24/7
Support
Deployment & Support Services

Enterprise Deployment Solutions

Complete deployment, monitoring, and maintenance services for your authentication and notification infrastructure

Containerized Deployment

Complete Docker containerization with orchestration support for scalable, production-ready deployments.

Docker & Docker Compose setup
Kubernetes deployment configs
Multi-environment support
Auto-scaling configuration
Dockerfile Example:
FROM node:18-alpine
WORKDIR /app
COPY package*.json ./
RUN npm ci --only=production
EXPOSE 3000
CMD ["npm", "start"]
Production Ready
Secure

PM2 Process Management

Advanced process management with clustering, monitoring, and automatic restart capabilities.

Cluster mode with load balancing
Automatic restart on failure
Memory usage monitoring
Log rotation and management
Performance Metrics:
99.9%
Uptime
<1s
Restart Time
Zero Downtime
High Performance

SSL & Reverse Proxy

Nginx reverse proxy configuration with SSL/TLS certificates and advanced security headers.

Let's Encrypt SSL certificates
HTTP/2 and HTTPS enforcement
Load balancing & failover
Security headers & CORS
Security Rating:
A+
SSL Labs
100
Security Score
Enterprise Grade
Encrypted

Real-Time Monitoring & Analytics

Comprehensive monitoring dashboard with performance metrics and alerting

System Performance Metrics

99.9%
API Uptime
↗ +0.1%
47ms
Avg Response
↘ -5ms
1.2M
Requests/Month
↗ +15%
0.01%
Error Rate
↘ -0.02%
CPU Usage
65%
Memory Usage
45%
Database Connections
30%

Service Health Status

Authentication Service
Operational
Email Service
Operational
Notification Service
Operational
Database (PostgreSQL)
Healthy
Cache (Redis)
Healthy
Third-party APIs
Connected
Overall Health Score
Last updated: 2 minutes ago
98.5%
Excellent

Automated Alerting System

Critical Alerts
  • • Service downtime detection
  • • Database connection failures
  • • Security breach attempts
  • • Authentication service errors
Warning Alerts
  • • High error rates (>1%)
  • • Resource usage (>80%)
  • • Performance degradation
  • • Email delivery issues
Notification Channels
  • • Slack integration
  • • Email notifications
  • • SMS alerts (critical)
  • • Dashboard notifications

Basic Support

Essential monitoring and maintenance

$299/month
24/7 system monitoring
Weekly security updates
Email support (48h response)
Performance reporting
Backup management
Most Popular

Professional Support

Complete managed services

$599/month
Everything in Basic +
Priority support (4h response)
Daily security monitoring
Performance optimization
Custom integration support
Disaster recovery planning

Enterprise Support

White-glove service & SLA

$1,299/month
Everything in Professional +
99.9% uptime SLA
1-hour response time
Dedicated support engineer
Custom feature development
Architecture consultation

Ready to Deploy Your Authentication System?

Get your enterprise-grade authentication, notification, and security infrastructure deployed in less than 24 hours with our expert team

+256 700 123 456
24/7 Support Available
JOIN SERENE CREATIONS

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Professional Network

Connect with like-minded wellness professionals and expand your practice

Continuing Education

Access exclusive workshops, courses, and certification programs

Business Growth

Tools and resources to help grow your wellness practice

Service Request & Consultation Booking

Ready to start your project? Request a detailed quote or book a consultation with our expert team. We provide comprehensive architectural and engineering services tailored to your needs.

Request Service Quote

Get a detailed proposal and pricing for your project requirements.

Book Free Consultation

Schedule a free 30-minute consultation to discuss your project and explore how we can help.

Quick Response

We respond to all service requests within 24 hours with initial assessment and next steps.

Quality Guaranteed

All our services come with quality assurance and professional liability coverage.

Transparent Process

Clear communication, detailed proposals, and no hidden costs throughout your project.

Need Immediate Assistance?

For urgent project inquiries or technical emergencies, contact us directly.