Forked from manzoorwanijk/yup-with-final-form.js
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How to properly use yup validation schema with (React) Final Form?
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| import * as yup from 'yup'; | |
| import { setIn } from 'final-form'; | |
| const validationSchema = yup.object({ | |
| email: yup.string().email(), | |
| shipping: yup.object({ | |
| name: yup.string(), | |
| phone: yup.object({ | |
| code: yup.string().matches(/^\+\d+$/i), | |
| number: yup.number().max(10), | |
| }), | |
| address: yup.string(), | |
| zip: yup.string(), | |
| }), | |
| billing: yup.object({ | |
| name: yup.string(), | |
| address: yup.string(), | |
| zip: yup.string(), | |
| }), | |
| items: yup.array().of( | |
| yup.object({ | |
| id: yup.number(), | |
| price: yup.number(), | |
| quantity: yup.number(), | |
| }) | |
| ), | |
| }); | |
| // To be passed to React Final Form | |
| const validateFormValues = (schema) => async (values) => { | |
| if (typeof schema === 'function') { | |
| schema = schema(); | |
| } | |
| try { | |
| await schema.validate(values, { abortEarly: false }); | |
| } catch (err) { | |
| const errors = err.inner.reduce((formError, innerError) => { | |
| return setIn(formError, innerError.path, innerError.message); | |
| }, {}); | |
| return errors; | |
| } | |
| }; | |
| const validate = validateFormValues(validationSchema); | |
| const MyForm = () => ( | |
| <Form // from react-final-form | |
| onSubmit={onSubmit} | |
| validate={validate} | |
| /> | |
| ); | |
| // without any library | |
| import { ValidationError } from 'yup'; | |
| type ErrorObject = { | |
| [field: string]: string[]; | |
| }; | |
| /** | |
| * Convert yup error into an error object where the keys are the fields and the values are the errors for that field | |
| * @param {ValidationError} err The yup error to convert | |
| * @returns {ErrorObject} The error object | |
| */ | |
| export function yupErrorToErrorObject(err: ValidationError): ErrorObject { | |
| const object: ErrorObject = {}; | |
| err.inner.forEach((x) => { | |
| if (x.path !== undefined) { | |
| object[x.path] = x.errors; | |
| } | |
| }); | |
| return object; | |
| } |
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