Command Line REPL — In-Memory Key-Value Store

A command-line REPL for an in-memory key-value store that supports nested transactions, rollback/commit, and basic commands.

Installation

go mod download

How to Run

go run .

How to Run Tests

go test ./...

Commands

Command	Description	Output
SET <key> <value>	Sets key to value	Silent
GET <key>	Prints the current value	Value or NULL
DELETE <key>	Removes key if it exists	Silent
COUNT <value>	Prints how many keys equal value	Count
BEGIN	Starts a new transaction	Silent
ROLLBACK	Reverts the most recent transaction	Silent or NO TRANSACTION
COMMIT	Permanently applies all open transactions	Silent or NO TRANSACTION
END	Exits the program	Silent