#Add contact
Add a new contact. When a given phone number already exists, it updates existing contact. If existing contact gets updated, all information gets overwritten, including all extra fields.
#Method
POST
#Path
/contacts/[phone_number]
Add a new contact. When a given phone number already exists, it updates existing contact. If existing contact gets updated, all information gets overwritten, including all extra fields.
POST
/contacts/[phone_number]