gedis

README

Gedis

Gedis is an in-memory Redis inspired database written in Go.

Why?

Just wanted to challenge myself to create a Database. + I just wanted to build a Go project since I am very much foreign with the language (not having used it in anything other than backend development)

How does this work?

Its simple, a map[string]string stored in memory, while writing to cache for persistence.

Backups are also supported. Creating a backup will take the map from meory & spit out a backup-[TIMESTAMP].(json|csv) file with the map encoded as JSON or CSV. When loading a backup, the type of the file is inferred based on the file extension. If the name of a backup file is changed to include other stuff like extra ".", it will fail. After the type is inferred of either JSON or CSV, it decodes it & then places it in memory + cache.

It also starts a server by default on port 5000 (If PORT env variable is not set, the default is 5000). This API allows for GET, SET & DELETE so it can be accessed by an application using a network request.

Commands

The database is very simple with 5 commands.

NOTE: The commands are case-insensitive, so doesn't matter if you are a SQL guy or not.

Open commands

These commands can be accessed from both the CLI and the Rest API.

GET

Gets a value with the given key from memory.

Syntax

GET <key>

# example, if the key is "foo"
GET foo

SET

Sets a value with a given key. Also written to cache for persistence.

Syntax

SET <key> <value>

# example with the key="foo" & value="bar"
SET foo bar

DELETE

Deletes a value with the given key.

Syntax

DELETE <key>

# example, delete the value with key "foo"
DELETE foo

CLI-only commands

create_backup

Creates a backup-[TIMESTAMP].(json|csv) in the backups folder.

Supported Backup export type

• JSON
• CSV

# by default, it exports as JSON
create_backup

# export as CSV
create_backup --csv

# any flag not-meaningful to the database is ignored (exported as JSON)
create_backup --never-gonna-give-you-up

load_backup

Loads a backup file.

It looks for backups in the backups/ folder so anything else is ignored.

Syntax

load_backup <backup-file-name>

# json
load_backup backup-060623-17:12:51.json

# csv
load_backup backup-060623-17:12:51.csv

Using the Rest API

The database's server only has one endpoint, the root (/) Here you can send GET, POST (SET) & DELETE Requests to perform actions on the database. Make sure to also pass ?key=... & &value=... based on the type of action.

Getting Started

• Clone the repo

$ git clone https://github.com/Dev-Siri/gedis.git

• Compile the project. Make sure you have Go installed on your system.

$ go build -tags netgo -ldflags '-s -w' -o gedis

• Then just run the binary.

$ ./gedis

This will start a server on your machine w/ PORT env (default 5000) + a CLI that will allow you to interact with the database.

License

This project is MIT licensed, see LICENSE.md.