If you haven't done so already, head over and sign up with Paylike and create a live account.
Search for “Paylike” directly on the Magento Marketplace or click on the button below and install the extension.Paylike payment plugin for Magento 2
Copy your public key and app key from the Paylike dashboard.
At the admin panel go to “System” on the left side menu and select “Configuration” under the “Settings” option. On the congiguration page, click on “Sales” then select “Payment methods” in the menu and find Paylike in the list. Set the “Transaction mode” to “Live” then insert the public key and app key in the fields “Live mode Public Key” and “Live mode App Key” on the settings page of the Paylike plugin. Click on the “Save config” as the last step.
You're all set. Paylike has now been setup successfully on your website and you are ready to accept payments!