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hCaptcha

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The hCaptcha Pages Plugin validates hCaptcha tokens.

Installation


								
									
									npm
									 i @cloudflare/pages-plugin-hcaptcha

Usage

import hCaptchaPlugin from "@cloudflare/pages-plugin-hcaptcha";

export const onRequestPost: PagesFunction[] = [
	hCaptchaPlugin({
		secret: "0x0000000000000000000000000000000000000000",
		sitekey: "10000000-ffff-ffff-ffff-000000000001",
	}),
	async (context) => {
		// Request has been validated as coming from a human

		const formData = await context.request.formData();

		// Store user credentials

		return new Response("Successfully registered!");
	},
];

This Plugin only exposes a single route. It will be available wherever it is mounted. In the above example, because it is mounted in functions/register.ts, it will validate requests to /register. The Plugin is mounted with a single object parameter with the following properties.

secret ↗ (mandatory) and sitekey ↗ (optional) can both be found in your hCaptcha dashboard.

response and remoteip are optional strings. response the hCaptcha token to verify (defaults to extracting h-captcha-response from a multipart/form-data request). remoteip should be requester's IP address (defaults to the CF-Connecting-IP header of the request).

onError is an optional function which takes the Pages Function context object and returns a Promise of a Response. By default, it will return a human-readable error Response.

data.hCaptcha will be populated in subsequent Pages Functions (including for the onError function) with the hCaptcha response object ↗.