JavaScript powered forms and SDK for Form.io

This library is a plain JavaScript form renderer and SDK for Form.io. This allows you to render the JSON schema forms produced by Form.io and render those within your application using plain JavaScript, as well as provides an interface SDK to communicate to the Form.io API's. The benefits of this library include.

- Plain JavaScript implementation using ES6 and Modern practices (no jQuery, Angular, React, or any other framework dependency)
- Renders a JSON schema as a webform and hooks up that form to the Form.io API's
- Complete Form Builder which creates the JSON schema used to render the forms.
- Nested components, layouts, Date/Time, Select, Input Masks, and many more included features
- Full JavaScript API SDK library on top of Form.io

Important Updates

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Starting with version 5.x, this library has moved to a new namespace. Please update your npm install command as follows:

npm install --save @formio/js

If you are upgrading from version 4.x, please ensure you update your imports and dependencies to use the new namespace @formio/js.

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Our cdn endpoints also reflect the changes to the new namespace when retrieving versions >4.x:

Example:
- https://cdn.form.io/js/formio.full.min.js
- https://cdn.form.io/js/5.0.0/formio.full.min.js

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Version 4.x of this library is now in maintenance mode. This means:

- No new features will be added to version 4.x.
- Only bug fixes and security updates will be provided.

For the latest features and improvements, we strongly recommend upgrading to version 5.x.

Examples and Demonstration

To find out more about this library as well as see a demonstration of what you can do with this library, go to the Examples and Demo site @ https://formio.github.io/formio.js

Installation

To install this SDK into your project, you can use the following command within your terminal.

``
npm install --save @formio/js
`



Form Building

This library has a very powerful JSON form builder, and can be used like the following.

`html













`

This will create a robust Form builder embedded right within your own application. See Our Demo Page for an example.

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Go to the Form Builder Documentation for a full documentation on how the open source form builder works.

Form Rendering

The following is a simple example on how to render a form within your HTML application.

`html













`

This will render the following form within your application.

!Alt text

You can also render JSON directly instead of referencing the embed URL from Form.io.

`js
Formio.createForm(document.getElementById('formio'), {
components: [
{
type: 'textfield',
key: 'firstName',
label: 'First Name',
placeholder: 'Enter your first name.',
input: true
},
{
type: 'textfield',
key: 'lastName',
label: 'Last Name',
placeholder: 'Enter your last name',
input: true
},
{
type: 'button',
action: 'submit',
label: 'Submit',
theme: 'primary'
}
]
});
`

This will render the JSON schema of the form within your application.

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A great way to play around with this renderer is to use JSFiddle, which serves as a good sandbox environment. Here is an example that you can fork and make your own!

http://jsfiddle.net/travistidwell/z63jvwkp/

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For a more complete documentation of how to utilize this library within your application go to the Form Renderer documentation.

Wizard Rendering

This library can also be used to render a form wizard within your application using the same method as rendering a form.
The determiniation on whether it should render as a wizard or not is based on the display property of the form schema
being set to `wizard`.

`html













`

Form Embedding

You can also use this library as a JavaScript embedding of the form using a single line of code. For example, to embed the https://examples.form.io/example form within your application you can simply use the following embed code.

`html

`

For an example of how this looks and works, check out the following Form.io Inline Embedding

Form Embedding Documentation

For a more complete documentation of how to embed forms, go to the Form Embedding Documentation.

JavaScript SDK

In addition to having a Form Renderer within this application, you can also use this library as a JavaScript SDK in your application. For example, to load a Form, and then submit that form you could do the following within your JavaScript.

`html






`

You can also use this within an ES6 application as follows.

`js
import { Formio } from '@formio/js/sdk';
let formio = new Formio('https://examples.form.io/example');
formio.loadForm((form) => {
console.log(form);
formio.saveSubmission({data: {
firstName: 'Joe',
lastName: 'Smith',
email: 'joe@example.com'
}}).then((submission) => {
console.log(submission);
});
});
``

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For more complete documentation over the JavaScript SDK, please take a look at the JavaScript SDK Documentation.

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To view the full SDK Documentation, go to Developer SDK Documentation