Zod•14mo ago

zerokelvin - Why is MySchema.parse making optio...

Why is MySchema.parse making optional all of the properties of my schema? How do I stop it from doing this? Stackblitz: https://stackblitz.com/edit/typescript-pnkeqy?file=index.ts,package.json

import { z } from 'zod';

export const CreateMessage = z.object({
  personId: z.number(),
  fullName: z.string(),
  email: z.string().email(),
});

const data = CreateMessage.parse({
  personId: 1,
  fullName: 'John Doe',
  email: '[email protected]',
});

console.log(data);

/*
The type of "data" above is:
const data: {
    personId?: number;
    fullName?: string;
    email?: string;
}


But instead it should be:

const data: {
    personId: number;
    fullName: string;
    email: string;
}
*/

import { z } from 'zod';

export const CreateMessage = z.object({
  personId: z.number(),
  fullName: z.string(),
  email: z.string().email(),
});

const data = CreateMessage.parse({
  personId: 1,
  fullName: 'John Doe',
  email: '[email protected]',
});

console.log(data);

/*
The type of "data" above is:
const data: {
    personId?: number;
    fullName?: string;
    email?: string;
}


But instead it should be:

const data: {
    personId: number;
    fullName: string;
    email: string;
}
*/

StackBlitz

TypeScript Zod Playground (forked) - StackBlitz

Blank starter project for building TypeScript apps.

2 Replies

Sikari•14mo ago

This happens when you do not use strict: true in your tsconfig, more specifically strictNullChecks has to be enabled.

zerokelvinOP•14mo ago

Ah, that's it! That fixed my issue, thanks @Sikari !!

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zerokelvin - Why is MySchema.parse making optio...