Subscription Widget Helper

[thinkingserious]

Create a helper that will show how to add a working subscription widget to their site from code in the library.

Features:

• A function that returns an embeddable HTML form that takes email address and name
• The form should submit to a customizable URL path
• The code at the URL path should accept the data and post it to the contactdb using the (POST Add Recipients endpoint)[https://sendgrid.com/docs/API_Reference/api_v3.html#contacts-api-recipients]
• Please add tests:
  • Validate the form is built properly
  • Validate that a proper response is received when data is submitted from the form

Maybe merging this would be a bit easier?

[devchas]

Hoping this can serve as a temporary solution

[thinkingserious]

Since there has been no activity on this issue since March 1, 2020, we are closing this issue. Please feel free to reopen or create a new issue if you still require assistance. Thank you!