Zod Snippets

check-for-semantic-version.ts

// Use this official regex: ^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$
// See here: https://semver.org/#is-there-a-suggested-regular-expression-regex-to-check-a-semver-string

const regex =
  /^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-((?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*)(?:\.(?:0|[1-9]\d*|\d*[a-zA-Z-][0-9a-zA-Z-]*))*))?(?:\+([0-9a-zA-Z-]+(?:\.[0-9a-zA-Z-]+)*))?$/;
const SemVer = z.string().regex(regex);

guard-null-or-undefined.ts

import { z } from 'zod';

/**
 * Allows values:
 * - undefined
 * - null
 *
 * Transforms incomming null values to undefined, to not have to deal with undefined | null values in code
 */

export function guardNullOrUndefined<T extends z.ZodTypeAny>(schema: T) {
  return z
    .nullable(z.optional(schema))
    .transform((value) => (value === null ? undefined : value));
}

preprocess-json.ts

 z
        .string()
        .pipe(
          z.preprocess((json) => JSON.parse(String(json)), clientKontextSchema)
        )