How to Build an AI Chat Endpoint in Node.js with the Telnyx AI Assistants API

Short summary

This tutorial covers building a production-ready AI chat endpoint with the Telnyx AI Assistants API in Node.js. Unlike typical demos, it addresses real production needs: input validation before SDK calls, mapping Telnyx errors to appropriate HTTP status codes (401 for auth, 429 for rate limits, 503 for connection issues), and proper response serialization. The example is ~80 lines of Express.js with complete setup instructions, environment configuration, and curl testing you can run immediately.

• •Walkthrough of production-ready Node.js AI chat endpoint using Telnyx API
• •Error handling: maps SDK errors to HTTP status codes for proper client behavior
• •Complete setup with validation, testing, and deployment patterns

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