API Integrations & Backend Development
Building Scalable API Solutions
Expert Express.js development and third-party API integrations for Kenyan and global businesses
// Express.js API Server
const express = require('express');
const app = express();
// M-Pesa Integration
app.post('/mpesa/stkpush', async (req, res) => {
const payment = await mpesa.stkPush({
phone: req.body.phone,
amount: req.body.amount,
accountRef: 'ORDER-' + Date.now()
});
res.json(payment);
});
// Third-party API Integration
app.get('/weather/:city', async (req, res) => {
const weather = await weatherAPI.getWeather(req.params.city);
res.json(weather);
});
app.listen(3000);API Integration Expertise
Seamlessly connecting your applications with powerful third-party services
Payment Gateway APIs
Secure payment processing with Kenyan and international payment gateways
- Mobile money integration (M-Pesa, Airtel Money)
- International card processing
- Recurring payment setups
- Webhook implementations
Social Media APIs
Connect your applications with major social media platforms
- Social media authentication
- Content posting automation
- Social analytics integration
- User profile synchronization
Cloud Storage APIs
Scalable file storage and management solutions
- File upload/download management
- Image processing and optimization
- CDN integration
- Backup and synchronization
Communication APIs
Real-time messaging and notification systems
- SMS and WhatsApp integration
- Email automation
- Push notifications
- Real-time chat systems
Analytics APIs
Business intelligence and data analytics integrations
- User behavior tracking
- Custom dashboard creation
- Conversion analytics
- Real-time data visualization
E-commerce APIs
Complete e-commerce backend solutions
- Product catalog management
- Order processing automation
- Inventory synchronization
- Shipping integration
Express.js Backend Solutions
Robust, scalable backend development using Node.js and Express.js
RESTful API Development
Building clean, documented REST APIs following industry best practices
- RESTful design principles
- OpenAPI/Swagger documentation
- Version control for APIs
- Rate limiting and security
// RESTful API Example
app.get('/api/v1/users', async (req, res) => {
try {
const users = await User.find()
.limit(req.query.limit)
.skip(req.query.offset);
res.json({
success: true,
data: users,
count: users.length
});
} catch (error) {
res.status(500).json({
success: false,
error: error.message
});
}
});Authentication & Authorization
Secure user authentication and role-based access control
- JWT token authentication
- OAuth 2.0 integration
- Role-based permissions
- Multi-factor authentication
// JWT Authentication
const jwt = require('jsonwebtoken');
const authenticateToken = (req, res, next) => {
const token = req.headers['authorization'];
if (!token) return res.sendStatus(401);
jwt.verify(token, process.env.JWT_SECRET,
(err, user) => {
if (err) return res.sendStatus(403);
req.user = user;
next();
});
};Database Integration
Seamless integration with various database systems
- MongoDB with Mongoose
- PostgreSQL with Sequelize
- Redis for caching
- Database optimization
// Database Integration
const mongoose = require('mongoose');
const userSchema = new mongoose.Schema({
name: { type: String, required: true },
email: { type: String, unique: true },
createdAt: { type: Date, default: Date.now }
});
const User = mongoose.model('User', userSchema);API Integration Projects
Real-world implementations showcasing API expertise
Jaza Nyumba Platform
LiveReal estate platform with M-Pesa payment integration and property listing APIs
E-commerce Backend
DevelopmentComplete e-commerce backend with payment gateway and inventory management
SMS Notification System
LiveBulk SMS system with Twilio integration for Kenyan businesses