Types

import jm from "json-msg";

jm.num(); // Number
jm.str(); // String
jm.bool(); // boolean
jm.any(); // any
jm.array(); // array
jm.sameAs(); // reference for the same input
// {} Object literal is objectType by default and its required. Thats why there is no object type

// Destructuring them

const { str, num, bool, any, array } = jm;

const todoSchema = {
   title: str(),
   time: num(),
   complete: bool(),
   todos: array(),
   id: num({ min: 5, max: 10000 }),
};

All types are required by default

str

const { str } = jm;
const schema = {
   username: str({ min: 5 }),
};

const numWithOption = {
   username: str({
      min: 6,
      max: 10,
      label: "Name",
      alphanum: true,
      email: true,
      messages: {
         email: "%label% must be a valid email",
      },
   }),
};

num

const { num } = jm;
const schema = {
   pin: num(),
};

const numWithOption = {
   pin: num({ min: 6, max: 10, label: "Name", integer: true }),
};

array

const { array } = jm;
const schema = {
   pin: array(),
};

const arrayWithOption = {
   pin: array({ min: 6, max: 10, items: str() }),
};

min and max is the length of the array

items: is the type inside of the array

bool

const { bool } = jm;
const schema = {
   pin: bool({ label: "Pin" }),
};

const boolWithOption = {
   pin: bool({ required: false, allow: [null, 0, undefined] }),
};

sameAs

sameAs is just like a ref in joi

This is only allowed on relative path

const { str, sameAs, num } = jm;
const schema = {
   password: str({ min: 5 }),
   confirm_password: sameAs("password"),
};

const sameAsWithOption = {
   password: str({ min: 5 }),
   confirm_password: sameAs("password", { label: "Confirm Password" }),
};

//extras

const schema = {
   storage: {
      pin: num({ digit: 4 }),
   },
   same_pin: sameAs("storage.pin"),
};

any

const { any } = jm;
const schema = {
   texts: any(),
};

const anyWithOption = {
   texts: any({ required: false }),
};