mediamonks

How to run the server

Prerequisites

Docker and docker compose should be installed on the system

Follow the below steps

• Clone the repository

git clone https://github.com/puneet222/media.git

• Run docker compose command

docker compose up -d

APIs

• REST Endpoint to fetch the value of a given key

curl 'http://localhost:8088/data?key=key1'

Key will be passed as query params to the url

• Websocket API

http://localhost:8088/ws

URL for websocket connection

{
    "key": "key1",
    "value": "value1"
}

Request Message to be sent over to websocket

{
    "success": true
    "message": string
}

Response message received from websocket

Handling concurrency

To handle multiple concurrent requests to the server for saving key-value pairs, I'm using the sync.Mutex package in Go.

Persisting Key-Value Pairs Across Server Restarts

I'm utilizing MongoDB for persistent storage of key-value pairs to ensure they are saved across server restarts.

Speeding Up the Key-Value Pair Saving Process

To improve performance, I'm using a new Go routine to save the same key-value pair in MongoDB asynchronously after saving it in the in-memory data store:

go app.InsertToDB(keyValue)

Additional thoughts

• Instead of utilizing an in-memory data store (e.g. a map), we could consider using Redis to store key-value pairs.
• While I have been occupied with work, I am currently conducting tests on the database (DB) and will ensure the repository is complete by adding the remaining tests.
• For our assignment, we could also opt to use the file system instead of MongoDB for persistent storage.
• As for testing the REST API and WebSocket API, I utilized Postman.