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CompletedAPI & SDK

RafikiSMS SDK

Official multi-language SDK for RafikiSMS gateway - simplifying SMS integration for developers across Tanzania.

RafikiSMS SDK

Challenges

  • Handling edge cases in SMS delivery status callbacks across different Tanzanian mobile networks
  • Designing a unified interface that feels native to TypeScript, Python, and PHP developers
  • Managing rate limits and concurrent request queuing without dropping messages

Features

Multi-language support (TypeScript, Python, PHP) with consistent API across all implementations
Automatic retry with exponential backoff for failed deliveries
Bulk SMS sending with real-time delivery status tracking
Webhook verification helpers for receiving delivery callbacks
Comprehensive documentation with runnable code examples

Technical Highlights

  • Reduced integration time for developers from days to hours
  • Handles 10,000+ concurrent SMS requests without failures
  • TypeScript-first design with full type definitions

Impact

Adopted by 15+ businesses within 2 months of release, processing over 50,000 SMS messages monthly.

My Role

Solo Developer & SDK Architect

Timeline

3 weeks (Jan 2025 - Feb 2025)

Tech Stack
TypeScriptNode.jsAPI DesignSDK
View Source Code

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