Full StackClinician
Practice room

Guided practice / 14 minutes

A successful click is not a saved record

The practice app displays a confirmation after this function resolves. The API can return 400 for invalid input.

javascript
async function saveSession(session) {
  const response = await fetch("/api/sessions", {
    method: "POST",
    headers: { "Content-Type": "application/json" },
    body: JSON.stringify(session)
  });
  return response.json();
}
  1. 1

    Trace

    What does this function send, and what value does it return?

  2. 2

    Find the gap

    A response with status 400 contains valid JSON. Does this function reject because of that HTTP status?

  3. 3

    Improve

    Name the smallest fix and the two response cases you would verify.

Your explanation

Use your own words. Include the evidence you would look for and the assumptions you are making.

Use synthetic information only. Notes are saved when you choose Save practice.