Send list of json docs using curl with POST method.

curl -H "Content-Type: application/json" -X POST -d '{"student_id":"1234567","test_id":"t123","answers":[{"question_id":"q1","answer":"aaa"},{"question_id":"q2","answer":"bbb"},{"question_id":"q3","answer":"abc"}]}' http://localhost:3008/testsave