Node.js Fundamentals · Final Project · Lesson 13 of 13
Building and Testing the API
Concept
Building and Testing the API
Combine routing, JSON responses, and environment variables into a working server, then test each route.
By the end of this lesson
- Explain the core idea behind Building and Testing the API.
- Predict output before running a change.
- Test one realistic and one unusual input.
- Use the result to make the next decision.
How to study this page
- 1. Read one concept.
- 2. Change the example.
- 3. Run, compare, and explain.
- 4. Complete the challenge below.
Self-check before continuing
Without looking at the example, describe what changes when you modify one input in Building and Testing the API. Then reopen the editor and prove your explanation with a small test.
You are ready to continue when you can predict, test, and explain the result.
Your turn
Add one more route to the server above and test it locally.
Need a nudge?
Ask about this lesson or your next move. The guide explains the path without taking the work away from you.
Ready for the next lesson?
Mark this lesson complete when you have finished the exercise.
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