Practice real-world automation scenarios. Build webhooks, transform data, handle errors, and integrate APIs. 28 free challenges to get you started.
Build endpoints that handle real data transformations
Handle edge cases, retries, and failure scenarios
Filter, map, and transform complex data structures
Master the fundamentals of webhook automation
Your first webhook! Simply return the data you receive.
Transform incoming data into a different structure.
Make your first external API call to fetch user data and transform it into a greeting response.
Fetch customer details and calculate their discount tier.
Combine data from multiple APIs to enrich order details.
Check product stock and handle out-of-stock scenarios.
Validate incoming data against external validation APIs and return detailed error feedback for invalid fields.
Implement simple retry logic for transient failures.
Learn to authenticate API requests using API keys in headers
Aggregate data from multiple API endpoints into a summary report
Chain API calls where each call depends on the previous result
Route incoming leads to the correct sales representative based on geographic territory rules.
Complex scenarios with multiple steps and API integrations
Map and rename fields from source to destination format.
Apply conditional logic to route data through different processing paths based on input values and thresholds.
Process arrays: filter, transform, and aggregate data.
Fetch multiple products and calculate order totals.
Process multiple items efficiently using batch APIs while respecting rate limits and handling partial failures.
Handle 404 "not found" errors gracefully by providing fallback responses and appropriate error messages.
Poll an external API repeatedly until a long-running task completes, handling status checks and timeouts gracefully.
Handle API rate limits gracefully using exponential backoff, retry logic, and queue management strategies.
Fetch all pages of data from a paginated API endpoint
Route notifications to different services with payload transformation
Handle slow API responses gracefully with timeouts and fallbacks
Process items in batches while respecting API limits
Production-grade scenarios for experienced builders
Handle scenarios where some items succeed and others fail.
Ensure operations are idempotent using idempotency keys.
Build a complete order with products, customer discount, and tax calculation
Build a shipment tracking aggregator that pulls status from multiple carriers and provides unified tracking updates.
Build a usage-based billing calculator for a SaaS platform that handles tiered pricing, overages, and credits.
Create a free account and start practicing with real challenges. No credit card required.
Start Free