leadId in the path.
Email addresses must be unique per lead. Attempting to create two contacts with the same email on the same lead returns 409.
Contact object
Endpoints
List contacts
GET /leads/{leadId}/contactsGet contact
GET /leads/{leadId}/contacts/{contactId}Create contact
POST /leads/{leadId}/contactsUpdate contact
PUT /leads/{leadId}/contacts/{contactId}Delete contact
DELETE /leads/{leadId}/contacts/{contactId}