Zod — TypeScript-first schema declaration and validation library #4

2 min readDec 11, 2023

✨ Create an Array of Custom Types ✨

We are still using the Star Wars API like the previous story but this time we want all of the people it returns.

If this was a TypeScript interface, it might look like:

We will update StarWarsPeopleResults to use an object schema representing an array of StarWarsPerson objects.

We create an object that references other objects. In this case, StarWarsPeopleResults will be a z.object that contains results.

For results, we will use z.array and provide it with our StarWarsPerson type. We don’t have to repeat the name: z.string() part!

Declaring arrays of objects like this is one of the most common uses for z.array(), especially when referencing types you already created.

I hope you found it useful. Thanks for reading. 🙏

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Written by Nhan Nguyen