Model Online / On-Site
Duration
Modules 5 modules

Course Objective & Scope

In no-code and low-code automation projects, teams quickly hit the ceiling of pre-built connectors when internal software, local ERP/CRM services or new AI APIs require custom integration. This course equips technical analysts and low-code builders with the skills to work confidently with APIs and webhooks.

HTTP methods, reading REST API documentation (OpenAPI/Swagger), testing requests in Postman/Bruno, JSON and JSON Schema, Bearer Token/OAuth2/HMAC signature verification, calling LLM APIs directly (structured outputs, tool calling) and rate-limit/retry design are covered hands-on.

Who Should Attend?

  • Business and systems analysts
  • Low-code builders working with n8n, Power Automate, Make or Zapier
  • Operations, MarTech and process automation specialists
  • Prerequisite: basic experience building flows in at least one automation platform

Key Takeaways

  • Read any service's API documentation and translate it into an HTTP Request node
  • Parse nested JSON payloads and map them to target system schemas
  • Configure inbound and outbound webhooks with signature verification and security checks
  • Call LLM APIs directly to receive responses guaranteed to match a JSON Schema
  • Implement exponential backoff, idempotency and dead-letter flows for 429/5xx errors

Curriculum

REST API, HTTP and JSON Fundamentals
  • GET, POST, PUT, PATCH, DELETE methods, headers, query parameters and status codes
  • Reading OpenAPI/Swagger docs and testing requests in Postman/Bruno
Authentication and Secure Connectivity
  • API Keys, Bearer Tokens, OAuth2 flows and secret management
  • HMAC signature verification and IP/token checks on inbound webhooks
Webhook Architecture and Asynchronous Workflows
  • Replacing polling with event-driven webhook triggers
  • Callback webhook and status-polling patterns for long-running AI/OCR jobs
Calling LLM APIs Directly and Structured Outputs
  • Direct HTTP calls to OpenAI, Anthropic and Gemini REST endpoints
  • Type-safe responses with response_format / JSON Schema and token/cost tracking
Resilience: Rate Limits, Idempotency and Error Handling
  • Pagination, batching and exponential backoff for HTTP 429 rate limits
  • Preventing duplicate records with idempotency keys and dead-letter recovery queues

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