Constant Contact WordPress Lead Integration

Job Description:

We are looking for an experienced WordPress developer who can integrate our website’s lead forms with Constant Contact using their API.

We have a custom post type called "Trips", and on each Trip page, we display a WPForms lead form. We need a solution where, when a user submits this form, the lead data will be automatically sent to Constant Contact — organized by Trip.

Project Requirements:

Custom Post Type:

Our website has a custom post type called "trips".

Each Trip page has a unique title and its own WPForm for lead collection.

Form Integration:

The Trip page’s WPForm is already connected to Constant Contact for basic lead collection.

We now want custom API integration for more dynamic lead organization.

Constant Contact API Functionality:

When a user submits a form on a Trip page, your code should:

Create (or check for) a new folder/list in Constant Contact named after that Trip title.

Add the lead (name, email, phone, etc.) from the form submission into that Trip’s folder/list.

Technical Requirements:

Use the Constant Contact API (v3) for all operations.

Ensure the process handles existing folders gracefully (no duplicates).

Follow best practices for authentication, error handling, and performance.

Clean, well-documented code that can be easily maintained.