redis-database

Simple Redis-like Server

Created a simplified version of Redis that supports a subset of its commands,

The simplified server can handle basic SET, GET, DEL, EXPIRE, KEYS, TTL, ZADD and ZRANGE commands.

Supported Commands

• SET: Store a key-value pair.
  • SET <key> <value>
• GET: Fetch the value associated with a given key.
  • GET key
• DEL: Delete a key-value pair.
  • DEL key
• EXPIRE: Set expire time for a key-value pair.
  • EXPIRE key ttl
• KEYS: Fetch all keys matching the regex.
  • KEYS filter
• TTL: Check the expire time for a key-value pair.
  • TTL key
• ZADD: Store a key in a sorted set.
  • ZADD key score value
• ZRANGE: Fetch the score and value of a given key between min and max score.
  • ZRANGE key minindex maxindex

Getting Started

These instructions will help you get the project up and running on your local machine.

Prerequisites

• Go (Golang) should be installed on your machine. If not, you can download it from here.

Installation

1. Clone the repository to your local machine.

   git clone https://github.com/saurabhy27/redis-database.git

2. Change to the project directory.

   cd redis-database

3. Run the server.

   go run main.go

4. Start the client by running the following command in Mac/Linux system

   nc <localhostip> 80

5. You can interact with the server by entering Redis-like commands in the client. For example

   redis> SET test test123
   OK
   redis> SET care care123
   OK
   redis> GET test
   test123
   redis> KEYS
   ERR wrong number of arguments for given command
   redis> KEYS *
   test
   care
   redis> EXPIRE test 10
   1
   redis> TTL test
   7
   redis> KEYS *
   care
   redis> ZADD saurabh 10 saurabh10
   1
   redis> ZADD saurabh 12 saurabh12
   1
   redis> ZRANGE saurabh 0 1
   saurabh12  12.000000
   saurabh10  10.000000
   

Testing

1. Run the test cases

   go test ./...

2. Run the test cases and check the coverage

   go test  -coverpkg ./... ./... -v