# Migrating from `availity-reactstrap-validation` to `@availity/form`

The primary difference in developing with `availity-reactstrap-validation` and `@availity/form` is validation. With `availity-reactstrap-validation`, we define validation schemas on the input components in the form with the `validate` prop, like so:

```jsx
import React from 'react';
import { AvInput, AvForm } from 'availity-reactstrap-validation';

const Example = () => (
  <AvForm>
    <AvInput
      name="myInput"
      type="text"
      validate={{
        required: {
          value: true,
          errorMessage: 'This field is required.',
        },
      }}
    />
  </AvForm>
);
```

Note: `availity-reactstrap-validation` also has a `required` prop that acts as a shorthand for required validation using the `validate` prop. The code snippet above is equivalent to:

```jsx
import React from 'react';
import { AvInput, AvForm } from 'availity-reactstrap-validation';

const Example = () => (
  <AvForm>
    <AvInput name="myInput" type="text" required />
  </AvForm>
);
```

With `@availity/form`, we use `yup` and `@availity/yup` to define the validation schema for all of the inputs in the form on the `<Form />` component with the `validationSchema` prop from [formik](https://jaredpalmer.com/formik/docs/guides/validation#validationschema), like so:

```jsx
import React from 'react';
import { Input, Form } from '@availity/form';

const Example = () => (
  <Form
    initialValues={{ myInput: '' }}
    validationSchema={yup.object().shape({
      myInput: yup.string().isRequired(true, 'This field is required.'),
    })}
  >
    <Input name="myInput" type="text" />
  </Form>
);
```

Another key difference is we define the initial state of the inputs in the form with the `initialValues` prop from [formik](https://jaredpalmer.com/formik/docs/api/formik#initialvalues-values) on the `<Form />` component.

## Form with `availity-reactstrap-validation`

```jsx
import React from 'react';
import { AvField, AvForm } from 'availity-reactstrap-validation';
import '@availity/yup';
import * as yup from 'yup';

const Example = () => (
  <AvForm onValidSubmit={() => {}}>
    <AvField
      name="memberId"
      type="text"
      label="Member ID"
      validate={{
        pattern: { value: 'd{8}', errorMessage: 'Member ID must be 8 digits' },
        required: {
          value: true,
          errorMessage: 'This Field is Required.',
        },
      }}
    />
    <AvField
      name="zipCode"
      type="text"
      label="Zip Code"
      validate={{
        pattern: {
          value: '^d{5}(?:-d{4})?$',
          errorMessage: 'Valid Zip Code Formats: 12345 or 12345-6789',
        },
        required: {
          value: true,
          errorMessage: 'This Field is Required.',
        },
      }}
    />
  </AvForm>
);
```

## Equivalent Form with `@availity/form`

```jsx
import React from 'react';
import { Field, Form } from '@availity/form';
import '@availity/yup';
import * as yup from 'yup';

const Example = () => (
  <Form
    onSubmit={() => {}}
    initialValues={{
      memberId: '',
      zipCode: '',
    }}
    validationSchema={yup.object().shape({
      memberId: yup
        .string()
        .isRequired(true, 'This Field is Required.')
        .matches(/^\d{8}$/, 'Member ID must be 8 digits.'),
      zipCode: yup
        .string()
        .isRequired(true, 'This Field is Required.')
        .matches(/^\d{5}(?:-\d{4})?$/, 'Valid Zip Code Formats: 12345 or 12345-6789'),
    })}
  >
    <Field name="memberId" type="text" label="Member ID" />
    <Field name="zipCode" type="text" label="Zip Code" />
  </Form>
);
```