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1.5.3 • Public • Published

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This is a plugin that only has a peer dependency to piral-core. What piral-forms brings to the table is a set of Pilet API extensions that can be used with piral or piral-core for exposing enhanced form capabilities.

By default, these API extensions are not integrated in piral, so you'd need to add them to your Piral instance.

Why and When

Quite often the management of forms is rather cumbersome. A form consists of multiple states, such as

  1. initial data loading (may be static/empty),
  2. handling of input (valid/invalid),
  3. submission of forms (in flight processing)
  4. (potentially async) handling of rejected forms (frontend was OK but backend complains)

Full libraries such as Formik can be used to tackle (at least parts of) this problem, too, but piral-forms represents a very lightweight approach just leveraging what's there already and exposing it via the pilet API.

Alternatives: Use known libraries exposed as shared libraries or rely on pilets to come up with their own solutions.


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The following functions are brought to the Pilet API.


Creates a new form container, which is an abstraction over a state container driven by the typical lifecycle of an input form.

Returns a higher-order component for providing the form-related props such as error, submitting, changed, formData, setFormData(), submit(), reset(), or changeForm().


::: summary: For pilet authors

You can use the createForm function from the Pilet API to create a global state container managed form inside the Piral instance.

Example use:

import { PiletApi } from '<name-of-piral-instance>';
import { MyPage } from './MyPage';

export function setup(piral: PiletApi) {
  const withSimpleForm = piral.createForm({
    message: `Really lose the data?`,
    emptyData: {
      firstName: '',
      lastName: '',
    onSubmit(data) {
      // return promise with data
  piral.registerPage('/sample-form', withSimpleForm(MyPage));

Calling createForm returns a higher-order component that injects new props from the FormProps<TFormData> interface into the component. These props contain among others a formData record and a submit function.


::: summary: For Piral instance developers

The provided library only brings API extensions for pilets to a Piral instance.

For the setup of the library itself you'll need to import createFormsApi from the piral-forms package.

import { createFormsApi } from 'piral-forms';

The integration looks like:

const instance = createInstance({
  // important part
  plugins: [createFormsApi()],
  // ...

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Piral is released using the MIT license. For more information see the license file.

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  • florianrappl