ajv-simple-wrapper

ajv-simple-wrapper

Provides a simple class wrapper for ajv to allow use of ajv in a way that I prefer for simple validation.

Usage

Install ajv and ajv-simple-wrapper.

npm install ajv ajv-simple-wrapper

Import ajv-simple-wrapper, initialize, and validate.

import { AjvSimpleWrapper } from 'ajv-simple-wrapper';

const schema = {
  type: 'object'
  properties: {
    foo: {
      type: 'string'
    },
    bar: {
      type: 'number'
    }
  }
};
const validator = new AjvSimpleWrapper(schema);

try {
  const result = validator.validate({
    foo: 'a string',
    bar: 'not a number!',
  });
} catch (err) {
  console.error('Validation failed!', err);
}

Error Handling

Alternatively, you can initialize your ajv wrapper with a configuration of throwOnValidationError: false to not throw when an error occurs.

import { AjvSimpleWrapper } from 'ajv-simple-wrapper';

const schema = {
  type: 'object'
  properties: {
    foo: {
      type: 'string'
    },
    bar: {
      type: 'number'
    }
  }
};
const validator = new AjvSimpleWrapper(schema, { throwOnValidationError: false });

const result = validator.validate({
  foo: 'a string',
  bar: 'not a number!',
});

if (!result) {
  console.error('Validation failed!', validator.errors);
}