Theo's Typesafe Cult•7mo ago

How do I merge two Zod schemas?

Hey guys, I am creating a form with react-hook-form and Zod. The form was too long, so I decided to divide it into multi step form, with each step having separate Zod schema. I am storing the form data locally until all steps are complete. Now, I want a Zod schema for combining the schemas and perform a validation before I send the data to the server. I am unable to find the right solution. Can somebody please help me?

Solution:

``` const schema1 = z.object({ name: z.string(), }); ...

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4 Replies

Solution

Juraj98•7mo ago

const schema1 = z.object({
  name: z.string(),
});

const schema2 = z.object({
  age: z.number(),
});

const schema3 = schema1.and(schema2)

const schema1 = z.object({
  name: z.string(),
});

const schema2 = z.object({
  age: z.number(),
});

const schema3 = schema1.and(schema2)

Juraj98•7mo ago

Would this work for you?

muadpn•7mo ago

import { z } from "zod";

const pathSchema = z.object({
  nextPath: z.enum(["page", "layout"]),
  webPath: z.string(),
});

// Define the schema for the "tag" type
const tagSchema = z.object({
  tags: z.array(z.string()),
});

// Define the overall schema with a discriminator
export const revalidateRequestSchema = z
  .object({
    type: z.enum(["path", "tag"]),
  })
  .and(
    z.union([
      z.object({
        type: z.literal("path"),
        path: pathSchema,
      }),
      z.object({
        type: z.literal("tag"),
        tags: tagSchema.shape.tags,
      }),
    ])
  );

export type RevalidateRequestData = z.infer<typeof revalidateRequestSchema>;

import { z } from "zod";

const pathSchema = z.object({
  nextPath: z.enum(["page", "layout"]),
  webPath: z.string(),
});

// Define the schema for the "tag" type
const tagSchema = z.object({
  tags: z.array(z.string()),
});

// Define the overall schema with a discriminator
export const revalidateRequestSchema = z
  .object({
    type: z.enum(["path", "tag"]),
  })
  .and(
    z.union([
      z.object({
        type: z.literal("path"),
        path: pathSchema,
      }),
      z.object({
        type: z.literal("tag"),
        tags: tagSchema.shape.tags,
      }),
    ])
  );

export type RevalidateRequestData = z.infer<typeof revalidateRequestSchema>;

maybe this helps? soo valid object are either:

 * @example {"type" : "path", path: { nextPath: "page", webPath: "/projects"}}
 * @example {"type" : "tag", tag: ["project_id", "data"]}

 * @example {"type" : "path", path: { nextPath: "page", webPath: "/projects"}}
 * @example {"type" : "tag", tag: ["project_id", "data"]}

CyberHero36OP•7mo ago

Thanks, this helped. I was looking into the docs for union, intersection, etc. and did not check for and method 😓

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How do I merge two Zod schemas?