Generate the rendered preview of transactional template
Authentication
api-keystring
The API key should be passed in the request headers as api-key for authentication.
Request
Values to fetch Template preview
OR
Response
successfully fetched template's preview fields
fromEmail
Sender email address
fromName
Sender Name
html
Html content of the template
previewText
Preview text of the template
subject
subject of the template
usedFeedNames