AnvilSignatureModal

A lightweight modal component that allows embedding Anvil Etch e-signatures via a modal popup in your app. It will give you information via callbacks through the signing process lifecycle. Compatible with mobile viewports with minimal dependencies.

See the live demo and open-source demo repository for a usage example.

What is Anvil?

Anvil provides easy APIs for all things paperwork.

1. PDF filling API - fill out a PDF template with a web request and structured JSON data.
2. PDF generation API - send markdown or HTML and Anvil will render it to a PDF.
3. Etch E-sign with API - customizable, embeddable, e-signature platform with an API to control the signing process end-to-end.
4. Anvil Workflows (w/ API) - Webforms + PDF + E-sign with a powerful no-code builder. Easily collect structured data, generate PDFs, and request signatures.

Learn more on our Anvil developer page.

Usage

yarn add @anvilco/react-signature-modal

npm install @anvilco/react-signature-modal

import AnvilSignatureModal from '@anvilco/react-signature-modal'
import '@anvilco/react-signature-modal/dist/styles.css'

<AnvilSignatureModal
  iframeURL={iframeURL}
  isOpen={isModalOpen}
  onClose={() => setIsModalOpen(false)}
  onLoad={() => setLoading(false)}
  onEvent={(eventObject) => {
    console.log(eventObject)

    // See https://www.useanvil.com/docs/api/e-signatures/#iframe-event-details
    // for all event details.
    //
    // Example:
    //
    // {
    //   action: 'signerComplete',
    //   signerStatus: 'completed',
    //   signerEid: 'Jc1ZJisPnpF5lHyfyqBW',
    //   nextSignerEid: 'WBqyfyHl5FpnPsiJZ1cJ',
    //   documentGroupStatus: 'partial',
    //   documentGroupEid: 'nEKq2eGim0ijSqKd98nG',
    //   etchPacketEid: 'XzfmVPfGUEyBc1XyylFo',
    // }
  }}
/>

Upgrading from v1 to v2

As of v2.0, the AnvilSignatureModal now uses AnvilEmbedFrame under the hood. The props have changed slightly:

• signURL -> iframeURL
• onFinishSigning -> onEvent. Check the eventObject.action === 'signerComplete' to detect a signer has finished signing
• onError -> onEvent. Check the eventObject.error to determine if there is an error

// v1.x
<AnvilSignatureModal
  // Changed props, see below
  signURL={signURL}
  onFinishSigning={(eventObject) => console.log(eventObject)}
  onError={(eventObject) => console.log(eventObject)}

  // Unchanged!
  isOpen={isModalOpen}
  onClose={() => setIsModalOpen(false)}
  onLoad={() => setLoading(false)}
/>

// v2.x
<AnvilSignatureModal
  // New
  iframeURL={iframeURL}
  onEvent={(eventObject) => {
    console.log(eventObject)
    if (eventObject.action === 'signerComplete') {
      // Signer has finished signing
    } else if (eventObject.error) {
      // There has been an error
    }
  }}

  // Unchanged!
  isOpen={isModalOpen}
  onClose={() => setIsModalOpen(false)}
  onLoad={() => setLoading(false)}
/>

Props

id

string - html id attribute, overriding the id will also remove all default styling for the react-siganture-modal. If you just want to override specific styling elements use the anvilFrameProps below.

iframeURL

string (required) - A URL to the Anvil signature page generated from the generateEtchSignURL GraphQL mutation. The signature frame will be displaying the signing page through this URL.

Example:

iframeURL={`https://app.useanvil.com/etch/8iJDbq8dkEmjrsNw7Dnb/sign?token=dsa...`}

isOpen

boolean - The modal is displayed if isOpen is true.

onClose

function - This function is called when the X button is clicked on the top right corner.

Example:

onClose={() => setIsOpen(false))}

onEvent

function - A callback function with payload as a parameter. It is called when a user has successfully finished signing.

Example:

onEvent={(eventObject) => console.log(eventObject)}

/*
{
  action: "signerComplete",
  signerEid: "kJzR6mcIWKoZs6KOxV4w",
  signerStatus: "completed",
  nextSignerEid: "HRLhx4khticpfxsUFSpj",
  documentGroupEid: "9fQnvfy51p7oKrEYajMh",
  documentGroupStatus: "partial",
  etchPacketEid: "J1phQTO6WQH6gZcMJAG5", // If from an EtchPacket
  weldDataEid: "J1phQTO6WQH6gZcMJAG5", // If from a workflow
}
*/

See our e-sign docs for full details on all iframe events.

onEvent is also called when a user experiences an error while attempting to sign. See the docs for details on how to recover from errors.

Example error payload:

{
  action: "signerError",
  errorType: "tokenExpired", tokenExpired || tokenInvalid || notFound
  error: "Token Expired",
  message: "Error specific message",
  signerEid: "kJzR6mcIWKoZs6KOxV4w",

  // depending on the errorType, you may or may not receive the following
  signerStatus: "sent",
  nextSignerEid: "HRLhx4khticpfxsUFSpj",
  documentGroupEid: "9fQnvfy51p7oKrEYajMh",
  documentGroupStatus: "sent",
  etchPacketEid: "J1phQTO6WQH6gZcMJAG5", // If from an EtchPacket
  weldDataEid: "J1phQTO6WQH6gZcMJAG5", // If from a workflow
}

onLoad

function - This function is called when the signing page has finished loading.

Example:

onLoad={() => setLoading(false)}

modalAppElement

string - Pass in a query selector identifying the root of your app. Used to hide other page content while the modal is open for screenreaders and other accessibility purposes.

Default: #root

showIconClose

boolean -Show the close icon on the top right of the modal if true.

iframeWarningProps

object - Pass in custom props into the paragraph tag displayed if the user's browser does not support iframes.

Example:

iframeWarningProps={{ className: 'warning-text' }}

anvilFrameProps

object - Pass in custom props into the iframe tag displayed within the modal.

Example:

anvilFrameProps={{
  style: { background: 'white' },
}}

iconCloseProps

object - Pass in custom props into the svg tag for the delete button displayed within the modal.

Example:

iconCloseProps={{ className: 'red-delete-button' }}

Styling

Customize the component by importing your own CSS stylesheet. Override IDs or classNames by passing them in as props.

Anvil Etch E-Sign Docs

Read the Docs

Links 🔗

• @anvilco/react-signature-modal
• Getting started with Anvil API

Notes

• To enable Iframe embedding: go to your organization's settings in Anvil, and enable "Iframe Embedding" in the API section.
• React >= v16.0 required.

Bugs

Please file an issue for bugs, missing documentation, or unexpected behavior.

Questions or Feedback

Please email us at [email protected].