PROJECTIntermediate 4 hours5 steps

Build a small API

Design an API that is understandable, testable, and immediately useful to another developer.

STEP 01 OF 05

Define the resource contract

Model your domain entity with strict TypeScript types and Zod schemas. Separate create, update, and response shapes.

EXPECTED STEP ARTIFACT

Zod schema defining entity properties, optional fields, and string constraints.

CHECKPOINT VERIFICATION

Action Required

Write your entity schema and export the inferred TypeScript type.

COMMAND / IMPLEMENTATION

import { z } from "zod"
export const ItemSchema = z.object({ id: z.string().uuid(), title: z.string().min(3) })

Your Output, Evidence or Link:

YOUR WORKING NOTES & EVIDENCE (AUTO-SAVED TO DEVICE)

STEP REFLECTION

What is the most likely invalid input a malicious user might send?

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