curl --location -g --request POST 'http://api.tunneling.iot.{region}.amazonaws.com/' \
--header 'X-Amz-Target;' \
--header 'Content-Type: application/json' \
--data-raw '{
"tunnelId": "string",
"clientMode": "SOURCE",
"destinationConfig": {
"thingName": "string",
"services": []
}
}'
{
"tunnelArn": "string",
"sourceAccessToken": "string",
"destinationAccessToken": "string"
}