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Backend and APIs · 30 lessons · up to 10 minutes each
A planned REST path for predictable resource APIs and safe client-server boundaries.
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Lessons 1–10
Topic: resource and action boundaries
Draw a small map of resource and action boundaries in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: HTTP methods and status codes
Label the main pieces in HTTP methods and status codes in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: request schema validation
Follow one input through request schema validation in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: consistent error envelopes
Write down one practical difference between consistent error envelopes in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: pagination and filtering
Mark where pagination and filtering in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: idempotency and retries
Annotate a minimal example of idempotency and retries in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: authentication and authorization
Show how authentication and authorization in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: versioning and compatibility
Describe one likely failure for versioning and compatibility in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: OpenAPI contract checks
Summarize an official example of OpenAPI contract checks in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: rate limits and observability
Match one small use case to rate limits and observability in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Lessons 11–20
Topic: resource and action boundaries
Create a small working example that uses resource and action boundaries in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: HTTP methods and status codes
Combine HTTP methods and status codes in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: request schema validation
Set up request schema validation in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: consistent error envelopes
Add a check around consistent error envelopes in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: pagination and filtering
Add pagination and filtering in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: idempotency and retries
Extract idempotency and retries in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: authentication and authorization
Run sample data through authentication and authorization in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: versioning and compatibility
Capture the result of versioning and compatibility in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: OpenAPI contract checks
Handle one expected failure from OpenAPI contract checks in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: rate limits and observability
Write a short usage note for rate limits and observability in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Lessons 21–30
Topic: resource and action boundaries
Add an edge-case test for resource and action boundaries in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: HTTP methods and status codes
Add the relevant access, safety, or validation control to HTTP methods and status codes in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: request schema validation
Record a small baseline for request schema validation in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: consistent error envelopes
Change one measurable cost in consistent error envelopes in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: pagination and filtering
Use an observable signal to explain a failure in pagination and filtering in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: idempotency and retries
Show that rerunning idempotency and retries in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: authentication and authorization
Compare two documented approaches to authentication and authorization in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: versioning and compatibility
Refine versioning and compatibility in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: OpenAPI contract checks
Check that a complete small flow using OpenAPI contract checks in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
Topic: rate limits and observability
Check the implementation of rate limits and observability in the context of HTTP resource contracts, validation, error handling, and reliability; save a short example or check that demonstrates the result.
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