Node.js Fundamentals · Building an API · Lesson 8 of 13
Routing Requests
Concept
Routing Requests
Checking req.url and req.method lets a server respond differently depending on the requested path.
By the end of this lesson
- Explain the core idea behind Routing Requests.
- 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.
ExampleRunnable
if (req.url === "/api/health" && req.method === "GET") {
res.end("OK");
}Self-check before continuing
Without looking at the example, describe what changes when you modify one input in Routing Requests. 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 a second route that responds to "/api/hello".
Loading editor…
Console