How to get form key in Magento 2?

@deron To get the form key in Magento 2, you can use the following code:

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$formKey = $this->getFormKey();

This code assumes that you are within a block class or a block template file. If you are within a controller, you can use the following code to get the form key:

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$formKey = $this->_formKey->getFormKey();

Once you have the form key, you can use it in your form as a hidden field. This is important because the form key is used to validate the form and protect against cross-site request forgery (CSRF) attacks.

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<input type="hidden" name="form_key" value="<?php echo $formKey ?>" />

I hope this helps! Let me know if you have any other questions.