import Ajv from "ajv";
import ajvErrors from "ajv-errors";
export function validate<T>(values: T, validationSchema: object) {
 const ajv = new Ajv({ allErrors: true });
 ajvErrors(ajv);
 const validate = ajv.compile(validationSchema);
 validate(values);
 console.log(...validate.errors);
}
const SCHEMA = {
 type: "object",
 required: ["parent", "child", "arr"],
 errorMessage: {
 properties: {
 parent: "parent custom length error ***111"
 }
 },
 properties: {
 parent: {
 type: "string",
 minLength: 5
 },
 arr: {
 type: "array",
 items: {
 type: "object",
 required: ["arrayProp"],
 errorMessage: {
 required:"custom required array prop",
 properties: {
 arrayProp: "arrayProp custom length error ***333 "
 }
 },
 properties: {
 arrayProp: {
 type: "string",
 minLength: 5
 }
 }
 }
 },
 child: {
 type: "object",
 required: ["childProp"],
 errorMessage: {
 properties: {
 childProp: "childProp custom length error ***222"
 }
 },
 properties: {
 childProp: {
 type: "string",
 minLength: 5
 }
 }
 }
 }
};
const DATA = {
 parent: "aaaa",
 child: {
 childProp: "aaaa"
 },
 arr: [
 {
 arrayProp: "aaaa"
 }
 ]
};
validate(DATA, SCHEMA);

{instancePath: "/arr/0/arrayProp", schemaPath: "#/properties/arr/items/properties/arrayProp/minLength", keyword: "minLength", params: Object, message: "must NOT have fewer than 5 characters"}
{instancePath: "/child/childProp", schemaPath: "#/properties/child/errorMessage", keyword: "errorMessage", params: Object, message: "childProp custom length error ***222"}
{instancePath: "/parent", schemaPath: "#/errorMessage", keyword: "errorMessage", params: Object, message: "parent custom length error ***111"}