curl --request POST \
--url https://{deploymentHost}/auth/identifier-availability \
--header 'Content-Type: application/json' \
--data '{
"email": "newuser@example.com"
}'
{
"status": 200,
"message": "",
"data": {
"available": true,
"identifier_type": "email",
"identifier": "newuser@example.com"
},
"session": {
"signin_attempts": [],
"signins": [],
"signup_attempts": [],
"active_signin": null
},
"errors": []
}