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react-turnstile

A very simple React library for Cloudflare Turnstile.

Installation

npm i react-turnstile

Usage

import Turnstile, { useTurnstile } from "react-turnstile";

// ...

function TurnstileWidget() {
  const turnstile = useTurnstile();
  return (
    <Turnstile
      sitekey="1x00000000000000000000AA"
      onVerify={(token) => {
        fetch("/login", {
          method: "POST",
          body: JSON.stringify({ token }),
        }).then((response) => {
          if (!response.ok) turnstile.reset();
        });
      }}
    />
  );
}

Turnstile tokens expire after 5 minutes, to automatically reset the challenge once they expire, set the autoResetOnExpire prop to true or reset the widget yourself using the onExpire callback.

Reducing Layout Shift

The turnstile iframe initially loads as invisible before becoming visible and expanding to the expected widget size.

This causes Layout Shift and reduces your Cumulative Layout Shift score and UX.

This can be fixed with the fixedSize={true} option, which will force the wrapper div to be the specific size of turnstile.

Bound Turnstile Object

The Bound Turnstile Object is given as argument to all callbacks and allows you to call certain window.turnstile functions without having to store the widgetId yourself.

function Component() {
  return (
    <Turnstile
      executution="execute"
      onLoad={(widgetId, bound) => {
        // before:
        window.turnstile.execute(widgetId);
        // now:
        bound.execute();
      }}
    />
  );
}

Documentation

Turnstile takes the following arguments:

name type description
sitekey string sitekey of your website (REQUIRED)
action string -
cData string -
theme string one of "light", "dark", "auto"
language string override the language used by turnstile
tabIndex number -
responseField boolean controls generation of <input /> element
responseFieldName string changes the name of <input /> element
size string one of "normal", "compact"
fixedSize boolean fix the size of the <div /> to reduce layout shift
retry string one of "auto", "never"
retryInterval number interval of retries in ms
appearance string one of "always", "execute", "interaction-only"
execution string one of "render", "execute"
id string id of the div
userRef Ref custom react ref for the div
className string passed to the div
style object passed to the div

And the following callbacks:

name arguments description
onVerify token called when challenge is passed
onLoad widgetId called when the widget is loaded
onError error called when an error occurs
onExpire - called when the token expires
onTimeout token called when the challenge expires
onAfterInteractive - called when the challenge becomes interactive
onBeforeInteractive - called when the challenge no longer is interactive
onUnsupported - called when the browser is unsupported by Turnstile

The callbacks also take an additional BoundTurnstileObject which exposes certain functions of window.turnstile which are already bound to the current widget, so you don't need track the widgetId yourself.

For more details on what each argument does, see the Cloudflare Documentation.

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A very simple React library for Cloudflare Turnstile.

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