This is my implementation for backend assignment of 2023 TikTok Tech Immersion.

Requirements: https://bytedance.sg.feishu.cn/docx/P9kQdDkh5oqG37xVm5slN1Mrgle

Make sure you have docker and docker-compose installed. Run the following command to start the app:

docker-compose up

Execute the following command to connect to the running redis container:

docker exec -it $(docker ps | grep redis | awk '{print $1;}') redis-cli

Then execute the following command to delete all data:

FLUSHALL

Check if the server is running

curl -X GET http://localhost:8080/ping

Expected response: status 200

{
    "message": "pong"
}

Send a message to a chat

curl -X POST \
  http://localhost:8080/api/send \
  -H 'Content-Type: application/json' \
  -d '{
    "Chat": "user1:user2",
    "Text": "Hello World",
    "Sender": "user1"
}'

Expected response: status 201

ok

Get messages from a chat from Cursor with Limit messages and sorting order Reverse (default: false)

curl -X GET \
  http://localhost:8080/api/pull \
  -H 'Content-Type: application/json' \
  -d '{
    "Chat": "user1:user2",
    "Cursor": 0,
    "Limit": 20,
    "Reverse": false
}'

Expected Response: status 200

{
  "messages": [
    {
      "chat": "user1:user2",
      "text": "Lorem ipsum dolor ...",
      "sender": "john",
      "send_time": 1684744610
    }, ...
  ]
}

Execute the following command in ./rpc-server folder to run unit tests and get test coverage:

 go test -race -cover -coverprofile=coverage.out $(go list ./... | grep -Ev "_gen") -coverpkg $(go list ./... | grep -Ev "_gen" | tr "\n" "," | sed 's/.$//')

Use the script stress_test.sh to run a stress test with <concurrent> concurrent requests and <requests> request batches.

./stress_test.sh <concurrent> <requests>

• go
• kitex
• redis
• docker
• github actions