Jira Ticket Creation from Public Website as Service Desk Customer using REST API?

[Kenneth Nam]

Dear Atlassian champions,

I would like to borrow your wisdom on the below automated Jira ticket creation (I do believe it is possible! but I just do not know how in details) 

1. Website has form page for general end-user (no login) to submit

2. It will send to Jira project via REST API (preferably) 

3. Jira needs to create ticket from step 1 and 2

4. In Jira ticket, the Reporter should be end user's email address
    (At this point, end user is not registered CROWD user but should be created automatically as Jira Service Desk Customer)

So far, it is possible to complete from step 1-3.

However,

1) REST API cannot map customer email field in the form page to Reporter
2) In Jira system, we mapped with custom field of email field but cannot assign that email address to automated email recipient so that any service desk team's comment can be sent to customer's email address (when clicking "Share with Customers")

Hence, will it be possible to map Reporter with unregistered end-customer when sending message via REST API? or if not how can we assign custom email field in Jira to be used for email communication in Jira email sending mechanism?

FYI. Using Email Ticket creation, non-registered CROWD user can be automatically created as Service Desk Customer when an email is sent. However, we need to stick with Web Form to create due to the multiple Jira projects based on the selection of the topic in the form.

Any experience you had the same situation? and if so, any workaround you had?

Many thanks all!