This file contains several examples of custom interactions with Greyd.Forms, e.g. to validated custom fields, customize error messages, connect a custom API or adapt form emails.
In general, there are a couple of different ways to interact with Greyd Forms. You can simply use a couple of hooks, to interact directly with a form and manipulate the data and send it to an API. It is also possible to create your own interface, that then lets an admin user set up the data themselves, that you can send to your own API.
Attached are some examples to give you a better understanding of what is possible and provide you with a working example. The file above includes:
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greyd-forms-hooks-examples.php
A collection of snippets that let you interact with forms easily
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greyd-forms-custom-interface.zip
A little custom plugin that registered a custom interface to the Greyd.Forms settings & metabox