PrestaShop is a free, open source e-commerce solution. The software is published under the Open Software License (OSL). It is written in the PHP programming language with support for the MySQL database management system.
At the top right click "Upload a module", press "Select file" and choose the downloaded Cardinity plugin .zip file.
After the installation, click "Configure".
Enter "Consumer Key" and "Consumer Secret" which can be found in your Cardinity account. Note: if you plan on using the "External checkout option", you also need to fill in the "Project Key" and "Project Secret" fields.
Save the changes.
Method no. 2 (manual)
Go to Prestashop main directory.
Open "modules" folder and create a new folder named "Cardinity".
Extract the downloaded Cardinity Payment Module for Prestashop plugin .zip file, copy it and paste it into /modules/ folder in your Prestashop main directory.
Go to Prestashop admin panel, navigate to "Modules → Module catalog".
Type "Cardinity" in to the search box and press install.
After the installation, click "Configure".
Enter "Consumer Key" and "Consumer Secret" which can be found in your Cardinity account. Note: if you plan on using the "External checkout option", you also need to fill in the "Project Key" and "Project Secret" fields.
Save the changes.
Note: after the installation, do not forget to change back the permissions of /modules/ folder.