Add vault to module dependencies

You need to add dependencies on the Magento_Vault module in the payment method’s composer.json and module.xml files.

Example: adding Vault module dependencies for the Braintree payment method

app/code/Magento/Braintree/composer.json:

{
    "name": "magento/module-braintree",
    ...
    "require": {
        ...
        "magento/module-vault": "100.1.*"
        ...
    }
    ...
}

app/code/Magento/Braintree/etc/module.xml:

<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Magento_Braintree" setup_version="2.0.0">
        <sequence>
            ...
            <module name="Magento_Vault"/>
            ...
        </sequence>
    </module>
</config>

What’s next

Configure vault general parameters.