Trinsic Web UI Library

The Trinsic Web UI Library provides ways to launch verification sessions directly from your web frontend in the browser.

This library must be paired with an api library as part of a full integration.

Documentation

See the Trinsic docs for more detailed information on how to start integrating with our identity acceptance network.

Installation

Install the package with:

npm install @trinsic/web-ui

If you're using a CDN, for example unpkg, you can use the below source.

<script src="http://unpkg.com/@trinsic/web-ui"><script>

If you are setting a CSP header for your application, you will need to add the following to your policy:

style-src 'self' https://cdn.trinsic.id https://content.trinsic.id

Usage

Setup

The library exports three methods: launchIframe(launchUrl), launchPopup(launchUrl) and launchRedirect(launchUrl, redirectUrl).

Bundler

When using a module bundler import the functions as follows:

import { launchIframe, launchRedirect, launchPopup } from "@trinsic/web-ui";

Script Tag

When using a direct script tag, you can access the methods via the global TrinsicUI variable:

await TrinsicUI.launchIframe(LAUNCH_URL);

Launch a Session

First, retrieve a launch URL from a trusted backend that can reach out to the Trinsic servers and create sessions. See our API libraries..

Then, launch the session using one of the three methods exposed by this library:

launchIframe

Call await launchIframe(launchUrl) to launch the Session as an embedded floating iFrame in-page.

This method returns a promise which will resolve when the Session is completed (successfully or unsuccessfully) or aborted by the user.

launchPopup

Call await launchPopup(async () => launchUrl) to launch the Session as a popup.

This call functions similarly to launchIframe -- it will return a promise which will resolve when the Session is finished.

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Preview provider

Note that you must pass a Promise<string>as the argument for the launchPopup. Simply passing a string will not work.

launchRedirect

Call launchRedirect(launchUrl, redirectUrl) to launch the session by redirecting the user's browser window. This is similar to an OAuth flow.

This method has no return value, and cannot be awaited in the same way launchIframe and launchPopup can.

When the user completes or aborts the Session, they will be redirected back to your application at redirectUrl, with the following query parameters appended:

• success
  • Can be true or false
  • Whether the Session completed successfully
• resultsAccessKey
  • May not be present (e.g. if the Session was aborted)
  • Must be processed by your backend to fetch the final identity results for the Session
• sessionId
  • The ID of the session that the user is redirecting back from

For example, calling launchRedirect(launchUrl, "https://example.com/trinsic-redirect") will cause the user to be redirected to https://example.com/trinsic-redirect?success=true&sessionId=...&resultsAccessKey=... upon completion of the Session.

*Note: These parameters can be set to arbitrary values by curious or malicious users simply by editing their browser URL bar. Don't implicitly trust the success parameter -- always fetch the Session results from your backend to confirm. Similarly, keep a record of the session ID you sent the user to, and correlate it against the sessionId query parameter.*

You can find a full example of an app using this library in the samples folder.

SDK Versioning

Our SDKs follow the Semantic Versioning ("SemVer") scheme.

For example, the version number 1.13.0 has a major version of 1, a minor version of 13, and a patch version of 0.

Breaking changes are only introduced alongside a new major version.

Support

Any issues, inquiries, and feature requests can be sent to [email protected], or feel free to open a GitHub issue here.

More Information

• API Reference
• Developer Guide
• Our Blog
• Schedule a demo