tagList attribute missing in POST Articles call from front-end.

[Ajit Giri]

There is tagList attribute missing in POST Articles call from front-end.

{"article":{"title":"Core Java","description":"Db Connection in Java","body":"Db Connection in Java Db Connection in Java"}}

Response:
{"timestamp":1520350867487,"status":500,"error":"Internal Server Error","exception":"java.lang.NullPointerException","message":"No message available","path":"/articles/"}