flutter_recaptcha_v2

A Flutter plugin for Google ReCaptcha V2.

Getting Started

This plugin requires Webview to use Google ReCaptcha. This plugin only supports Google ReCAPTCHA V2 (not V3)

Obtain your own key & secret here: https://www.google.com/recaptcha

!!! Remember to add this domain into the reCaptcha setting or add your own domain: recaptcha-flutter-plugin.firebaseapp.com

Then test your API KEY at: https://recaptcha-flutter-plugin.firebaseapp.com/?api_key=API_KEY

Put RecaptchaV2 widget into your widget tree (Usually inside Stack widget), make sure it's placed on top of the tree and block all the behind interactions:

  • You can change the plugin url for the captcha domain insde the RecaptchaV2 or leave it by default non adding the line:
pluginURL: "https://mypersonalurl.com"

if you have setted your own domain, specify the domain used

  • To show the Cancel Button with the captcha controller set the boolean to true:
visibleCancelBottom: true

otherwise it won't appear

  • Set the Text for the Cancel buttom or leave it by default:
textCancelButtom: "CANCEL CAPTCHA"

Example

RecaptchaV2Controller recaptchaV2Controller = RecaptchaV2Controller();
...
RecaptchaV2(
    apiKey: "YOUR_API_KEY", // for enabling the reCaptcha
    apiSecret: "YOUR_API_SECRET", // for verifying the responded token
    pluginURL: "https://mypersonalurl.com",
	visibleCancelBottom: true,
	textCancelButtom: "CUSTOM CANCEL CAPTCHA BUTTOM TEXT",
	controller: recaptchaV2Controller,
    onVerifiedError: (err){
        print(err);
    },
    onVerifiedSuccessfully: (success) {
        setState(() {
            if (success) {
                // You've been verified successfully.
            } else {
                // "Failed to verify.
            }
        });
    },
),

The RecaptchaV2 widget is hidden by default, you need to attach the RecaptchaV2Controller and call show() method when needed. Like this:

recaptchaV2Controller.show();

Manually hide it:

recaptchaV2Controller.hide();

That's it!

Libraries

flutter_recaptcha_v2