17

Challenge 17 - Write Your Own Memcached Server

This challenge corresponds to the seventeenth part of the Coding Challenges series by John Crickett https://codingchallenges.fyi/challenges/challenge-memcached.

Description

This is a simple implementation of a Memcached server written in Node.js using the net module.

The server supports the following commands:

• get: Get the value corresponding to the provided key
• set: Set a key value pair
• add: Add a key value pair if not already present
• replace: Replace a key value pair if present

The server also supports the expTime, and noreply feature.

The command.ts file exports a function that parses the information about the command sent by the client and returns an instance of MemCommand class which is used by the server to handle the execution of the command.

Usage

To start the server, use the ts-node command:

npx ts-node memcached.index.ts -p 11211

Or using the node command:

node path/to/memcached.index.js -p 11211

Run tests

To run the tests for the IRC Client, go to the root directory of this repository and run the following command:

npm test src/17/