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A simple invisible Google reCAPTCHA component focused solely on programmatic invocation.


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A simple invisible Google reCAPTCHA component focused solely on programmatic invocation.

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# npm npm i vue-programmatic-invisible-google-recaptcha # yarn yarn add vue-programmatic-invisible-google-recaptcha

Or you can include it through the browser at the bottom of your page:

<!-- Please note if you're using the browser method you're going to want to adjust the version number as needed. --> <script src="https://unpkg.com/vue-programmatic-invisible-google-recaptcha@2.1.2/dist/vue-programmatic-invisible-google-recaptcha.min.js"></script>


This is a simple component that helps deal with an invisible Google reCAPTCHA that you intend to invoke programmatically. There are a few plugins that help with Google's reCAPTCHA, but this one is focused on the invisble version with a programmatic invocation only. Due to its nature, reCAPTCHA can be a little complex - so that is what is driving the narrow scope here. Library supports easy multiple reCAPTCHAs on the same page.

Here's a breakdown of the steps you go through when using this library:

  • Load the Google reCAPTCHA library using the provided script tag.
  • Whenever you'd like, invoke the reCAPTCHA using this.$refs.invisibleRecaptcha1.execute() method (replacing invisibleRecaptcha1 with the ref name you set).
  • Google will either decide to show a challange or not. Either way, you'll get the recaptchaToken in the registered recaptcha-callback event. Make sure to register for that.
  • Use that token to verify in your backend.
  • Call the method again if you'd like to get a new token.

Usage Example

import VueProgrammaticInvisibleGoogleRecaptcha from 'vue-programmatic-invisible-google-recaptcha' Vue.component('vue-programmatic-invisible-google-recaptcha', VueProgrammaticInvisibleGoogleRecaptcha) <!-- Put this in your base HTML file - I use Vue CLI 3 so I put it at the bottom of the ./public/index.html file. --> <script src="https://www.google.com/recaptcha/api.js?render=explicit" async defer></script> <!-- This is in the component you want to have the reCAPTCHA --> <vue-programmatic-invisible-google-recaptcha ref="invisibleRecaptcha1" :sitekey="'<YOUR_SITEKEY_HERE>'" :elementId="'invisibleRecaptcha1'" :badgePosition="'left'" :showBadgeMobile="false" :showBadgeDesktop="true" @recaptcha-callback="recaptchaCallback" ></vue-programmatic-invisible-google-recaptcha> <!-- Where you want to invoke the reCAPTCHA --> submitButtonClicked() { // Do whatever you want here (probably some validation). After // that's done (or passed your expectations) you can then invoke the reCAPTCHA. this.$refs.invisibleRecaptcha1.execute() }, <!-- The reCAPTCHA's registered callback. This is where you'll get your token. --> recaptchaCallback (recaptchaToken) { // Use the `recaptchaToken` to pass to your backend to verify the token axios.post('/enter', {recaptchaToken: recaptchaToken}).then((result) => { console.log(result) }) },

Note - I find it to be a good idea to allow the user to reset their reCAPTCHA on their own if they're experiencing an issue. This component exposes a function for this. To do this, give them a button with the following code in the click function: this.$refs.invisibleRecaptcha1.reset(). This will reset the reCAPTCHA and hopefully get them passed the issue they're having.


refStringUnique String gives you control over the componentYes
sitekeyStringPublic key given to you by Google.Yes
elementIdStringUnique String for the id of the element. Allows for multiple seperate reCAPTCHAsYes
badgePositionStringPass 'left' to show badge on left side of screen.No'right'
showBadgeMobileBooleantrue to show badge on mobile. false to hide badge on mobile.Notrue
showBadgeDesktopBooleantrue to show badge on desktop. false to hide badge on desktop.Notrue


Note - call these methods through the ref you set up with your component. Example: this.$refs.invisibleRecaptcha1.execute().

executenoneUsed to gather the token. If Google decides that the user needs to complete a test they'll do it here.
resetnoneUsed to reset the reCAPTCHA instance.


eventparameter valuedescription
recaptcha-callbackStringThis even gets emitted when the token has been aquired. You can then use this token to verify the user on your backend.


# install dependencies npm install # serve with hot reload npm run watch # run the tests npm run test # build demo page npm run build:example # build library npm run build:library # build everything and run tests npm run build


Go ahead and fork the project! Submit an issue if needed. Have fun!

Thank You

Thanks to Google for their reCAPTCHA library.



Packaged with a mixture of vue-lib-template and vue-sfc-rollup.



Last updated on 30 Apr 2019

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