This code, based on Dropwizard, requires maven and Java 1.8.

mvn clean verify

java -jar target/tictac-drop-1.0-SNAPSHOT.jar server src/main/resources/local.yml

 curl --header "Content-type: Application/json" -X POST https://localhost:8080/drop_token -d'{ "players":["p1", "p2"], "rows":4, "columns":4}'

1. Download mongoDb from https://www.mongodb.com/try/download/community
2. Create database droptoken
   1. Create Collections game, moves, players, status.
3. Have fun.

Game Screenshots can be seen here

Design decisions and requirements are documented here