JSON Schema Verify/AJV
// or ESM/TypeScript import
import Ajv from "ajv"
// Node.js require:
const Ajv = require("ajv")
const ajv = new Ajv() // options can be passed, e.g. {allErrors: true}
const schema = {
type: "object",
properties: {
foo: {type: "integer"},
bar: {type: "string"}
},
required: ["foo"],
additionalProperties: false,
}
const validate = ajv.compile(schema)
const valid = validate(data)
if (!valid) console.log(validate.errors)