Key-Value Storage Server

This project implements an in-memory key-value storage that exposes an RESTful API.

Usage

The API centers around the values resource.

Following standard REST conventions, the API can be used as one would expect.

Setting a value

PUT /values

{
    "key": "...",
    "value": "..."
}

Retrieving a value

GET /values/<key>

Retrieving all values

GET /values

Data structures

As this project was mainly done for learning purposes, all fundamental data structures needed for the storage have been implemented.

Hash-Map

Uses the Doubly Linked List as a foundation for its buckets.

Supports the following standard operations:

• Put
• Get
• Remove

Additional Features

• Automatic rehashing in case a specific load factor (amount of values stored in relation to available buckets) is reached
• Thread safety through Read-Write-Locks to optimize for performance

Doubly Linked List

Supports the following standard operations:

• Add
• RemoveByKey
• Get
• pop