API Documentation - Invoice & Billing Management

Last Updated: May 2026

App Name: Invoice & Billing Management
API Version: v1
Base URL: https://api.erudite.co.ke/invoices
Authentication: Firebase Token-Based

1. Introduction

The Invoice & Billing Management API allows developers to programmatically access and integrate with Invoice & Billing Management functionality. This documentation covers all available endpoints, authentication methods, and data formats.

Status: Production
SLA: 99.9% uptime guarantee
Support: engage@erudite.co.ke

2. Authentication

All API requests require authentication using a Firebase token. Include your token in the Authorization header with the Bearer scheme.

Authorization: Bearer eyJhbGciOiJSUzI1NiIsImtpZCI6IjBhNjcyZjEyNzk1MzNmZDZiZGE1ZTMwZjFhZjE3Y2UzMjFhY2QzNzEiLCJ0eXAiOiJKV1QifQ...

2.1 Getting a Token

Obtain an authentication token by signing in with your Invoice & Billing Management account:

POST /auth/login
Content-Type: application/json

{
  "email": "user@example.com",
  "password": "your-password"
}

Response:
{
  "token": "eyJhbGciOiJSUzI1NiIs...",
  "expiresIn": 3600,
  "user": { ... }
}

3. Base API Information

3.1 Endpoints

Resource	Method	Endpoint	Description
Users	GET	/api/v1/users/{id}	Get user profile
Users	PUT	/api/v1/users/{id}	Update user profile
Users	DELETE	/api/v1/users/{id}	Delete user account
Data	GET	/api/v1/data	List user data
Data	POST	/api/v1/data	Create new data entry
Data	PUT	/api/v1/data/{id}	Update data entry
Data	DELETE	/api/v1/data/{id}	Delete data entry

3.2 Response Format

All API responses use JSON format. Successful responses include a status code and data:

{
  "success": true,
  "data": { ... },
  "message": "Request successful",
  "timestamp": "2026-01-06T12:00:00Z"
}

3.3 Error Responses

Error responses include an error code and message:

{
  "success": false,
  "error": {
    "code": "INVALID_REQUEST",
    "message": "The request is malformed or missing required fields",
    "details": { ... }
  },
  "timestamp": "2026-01-06T12:00:00Z"
}

3.4 HTTP Status Codes

Code	Meaning
200	OK - Request successful
201	Created - Resource created successfully
400	Bad Request - Invalid request format
401	Unauthorized - Missing or invalid authentication
403	Forbidden - Access denied
404	Not Found - Resource not found
429	Too Many Requests - Rate limit exceeded
500	Server Error - Internal server error

4. Rate Limiting

API requests are rate-limited to prevent abuse. Current limits:

Free Tier: 100 requests per hour
Standard Tier: 1,000 requests per hour
Enterprise Tier: Custom limits

Rate limit information is included in response headers:

X-RateLimit-Limit: 100
X-RateLimit-Remaining: 75
X-RateLimit-Reset: 1609873200

5. Data Privacy in API

All API requests and responses are protected by the same data security measures as the main application:

Encryption in Transit: All requests use TLS/SSL encryption
Authentication: Firebase token-based authentication required for all endpoints
Authorization: Role-based access control enforces data visibility
Audit Logging: All API requests are logged for security and compliance
Rate Limiting: Prevents brute force and DoS attacks

6. Webhooks (Coming Soon)

Real-time event notifications via webhooks will be available soon. Subscribe to events like:

Data creation, update, and deletion
User account changes
Transaction completions
System alerts and notifications

For more information, contact engage@erudite.co.ke

7. SDK Support

Official SDKs and code examples are available for:

Python
JavaScript/TypeScript
Java
C#/.NET
Go
Ruby
PHP

Find SDK documentation at github.com/erudite-systems

8. Support and Resources

Documentation: docs.erudite.co.ke
Status Page: status.erudite.co.ke
Email Support: engage@erudite.co.ke
GitHub Issues: Report bugs