suggestion: integrate with form builders

[hyusetiawan]

as a way to grow the library, I think you should consider integration with other libraries like what zod does. For example: https://mantine.dev/form/schema-validation/

[crafts69guy]

Hi @hyusetiawan,

Great suggestion! I agree this would help grow the library.

In the meantime, you can use the engine directly in custom validate functions:

import { createRuleEngine, createRuleHelpers } from 'rule-engine-js';

const engine = createRuleEngine();
const h = createRuleHelpers();

// Define validation rules using helpers (recommended)
const validationRules = {
  name: h.and(
    h.isNotNull('name'),
    h.validation.minLength('name', 2)
  ),
  email: h.validation.email('email'),
  age: h.gte('age', 18),
};

// Or using plain objects
// const validationRules = {
//   name: { and: [{ isNotNull: ['name'] }, { gte: ['name.length', 2] }] },
//   email: { regex: ['email', '^[\\w.-]+@[\\w.-]+\\.\\w+$'] },
//   age: { gte: ['age', 18] },
// };

const form = useForm({
  initialValues: { name: '', email: '', age: '' },
  validate: (values) => {
    const errors = {};
    
    for (const [field, rule] of Object.entries(validationRules)) {
      const result = engine.evaluateExpr(rule, values);
      if (!result.success) {
        errors[field] = result.error;
      }
    }
    
    return errors;
  },
});

Would a dedicated resolver package (like @rule-engine-js/mantine-resolver) be more valuable for your use case? If so, which form libraries are you currently using?