A Kahoot clone with a UI based on Ethan Brimhall's kahoot-clone-nodejs.

To deploy this on OpenShift

NAMESPACE=quiz \
PASSWORD=mysecretpassword \
bash -c \
'helm upgrade \
  --install quiz go-quiz \
  --repo https://kwkoo.github.io/go-quiz/helm \
  --namespace $NAMESPACE \
  --create-namespace \
  --set openshift=true \
  --set quiz.adminPassword=$PASSWORD'

To depoy this on non-OpenShift Kubernetes

NAMESPACE=quiz \
PASSWORD=mysecretpassword \
INGRESSHOST=quiz.apps.kubecluster.com \
bash -c \
'helm upgrade \
  --install quiz go-quiz \
  --repo https://kwkoo.github.io/go-quiz/helm \
  --namespace $NAMESPACE \
  --create-namespace \
  --set openshift=false \
  --set quiz.adminPassword=$PASSWORD \
  --set ingress.host=$INGRESSHOST'

To access the admin interface, go to the /admin endpoint.

• gorilla websocket example
• redigo docs
• redigo example code

• host starts in connecting to server screen
• host → server: session SESSION-ID
• server → host: screen entrance
• host clicks on host a game
• host → server: host-game
• server → host: all-quizzes [{"id":1,"name":"Quiz 1"},{"id":2,"name":"Quiz 2"}]
• server → host: screen host-select-quiz
• host → server: host-game-lobby 1
• server → host: lobby-game-metadata {"id":1,"name":"Quiz 1","pin":1234}
• server → host: screen host-game-lobby
• server → host: participants-list ["user1", "user2", "user3"]
• host → server: start-game
• server → host: host-show-question {"questionindex":0, "timeleft":30, "answered":0, "totalplayers":5, "question":"What did I eat for breakfast?", "answers":["answer 0", "answer 1", "answer 2", "answer 3"], "votes":[0,0,0,0]}
• server → host: screen host-show-question
• server → host: players-answered {"answered": 2, "totalplayers": 10, "votes":[0,0,0,0]}
• server → host: players-answered {"answered": 3, "totalplayers": 10, "votes":[0,0,0,0]}
• time runs out, stop timer, enable show results button
• host → server: show-results
• server → host: question-results {"questionindex":0, "question":"What did I eat for breakfast?", "answers":["answer 0", "answer 1", "answer 2", "answer 3"], "correct": 0, "votes":[1,2,3,3], "totalvotes": 9}
• server → host: screen host-show-results
• host → server: next-question
• server → host: host-show-question {"questionindex":1, "timeleft":30, "answered":0, "totalplayers":5, "question":"What did I eat for lunch?", "answers":["answer 0", "answer 1", "answer 2", "answer 3"]}
• server → host: screen host-show-question
• server → host: players-answered {"answered": 10, "total": 10}
• server → host: stop-timer
• enable show results button
• host → server: show-results
• host → server: question-results {"questionindex":1, "question":"What did I eat for lunch?", "answers":["answer 0", "answer 1", "answer 2", "answer 3"], "correct": 0, "votes":[1,2,3,4], "totalvotes": 10}
• server → host: screen host-show-results
• host → server: next-question
• server → host: show-winners [{"name": "user1", "score": 500}, {"name": "user2", "score": 300}, {"name": "user3", "score": 200}]
• server → host: screen host-show-game-results
• host → server: delete-game
• server → host: all-quizzes [{"id":1,"name":"Quiz 1"},{"id":2,"name":"Quiz 2"}]
• server → host: screen host-select-quiz

Other messages:

• host → server: query-host-results - sent when the host reconnects while his state is in the host-show-results screen

• player starts in connecting to server screen
• player → server: session SESSION-ID
• server → player: screen entrance
• player → server: join-game {"pin": 1234, "name": "user1"}
• server → player: screen wait-for-game-start
• server → player: display-choices 4
• server → player: screen answer-question
• player → server: answer 2
• server → player: screen wait-for-question-end
• server → player: player-results {"correct": true, "score": 180}
• server → player: screen display-player-results
• server → player: screen answer-question
• player does not answer the question
• server → player: player-results {"correct": false, "score": 180}
• the game ends
• server → player: screen entrance

Other messages:

• player → server: query-display-choices - sent when the player reconnects while his state is in the answer-question screen
• player → server: query-player-results - sent when the player reconnects while his state is in the display-player-results screen

• host → server: host-game
• server checks host's session and finds that the Admin flag is false
• server → host: screen authenticate-user
• host enters invalid credentials
• host → server: admin-login BASE64ENCODEDCREDENTIALS
• server → host: invalid-credentials
• host enters valid credentials
• host → server: admin-login BASE64ENCODEDCREDENTIALS
• server → host: screen host-select-quiz