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recaptcha-worker
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reCAPTCHA v3 Cloudflare Worker
Download README (.md)
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README.md
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recaptcha-worker
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# Google reCAPTCHA v3 Cloudflare Worker Google reCAPTCHA v3 Cloudflare Worker that handles the server-side verification of your reCAPTCHA. ## Installation This requires you to have a Cloudflare Workers account and have the Workers CLI installed. If you haven't already, follow this https://developers.cloudflare.com/workers/get-started/guide 1. Deploy it [](https://deploy.workers.cloudflare.com/?url=https://github.com/HR/recaptcha-worker) 2. Set your [reCAPTCHA secret key](https://developers.google.com/recaptcha/intro) environment variable ``` $ wrangler secret put RECAPTCHA_SECRET --env recaptcha-worker ``` 3. Write the client-side request code (see Usage) ## Usage ### Request From your client-side, make a `POST` request to your deployed cloudflare worker endpoint with the header field `g-recaptcha` set to your reCAPTCHA token. Like so: ```Javascript $.ajax({ type: 'POST', url: 'https://recaptcha-worker.YOUR-SUBDOMAIN.workers.dev', headers: { 'g-recaptcha': YOUR_RECAPTCHA_TOKEN }, error: function (res, status, error) { if (res.status === 400) { // Verification failed } else { // An error occured console.log(res.responseText) } }, success: function (res) { // Verification successful // POST the form data to your backend or something } }) ``` ### Response If the verification request succeeds, you'll get a `202` HTTP status code response with the body `reCAPTCHA passed`. If the verification request fails, you will get `400` HTTP status code response with the body `reCAPTCHA failed`. Otherwise, for any other error, you will get `500` HTTP status code response with the body being the error stack.
