JSON Database

A fully implemented JSON database in Java and stored in a file. Handling nested json values too.br> The connection between the client and the server is through a socket, the server is listening the port 23456.

Dependencies

JRE 17

Start the Server:

java Server

Start the Client with arguments:

[-in] to use input as file .json 
java Client -in setFile.json

[-t type] as type of command (set, get, delete, exit)
[-k key] as key of value
[-v value] as value of key
java Client -t set -k 1 -v "Hello world!"

Environment development

The application is ready to run in IntelliJ IDE (2022.3), you can import the project from the GitHub repository.

Execution example from client view

> java Main -t get -k 1
Client started!
Sent: {"type":"get","key":"1"}
Received: {"response":"ERROR","reason":"No such key"}

> java Main -t set -k 1 -v "Hello world!"
Client started!
Sent: {"type":"set","key":"1","value":"Hello world!"}
Received: {"response":"OK"}

> java Main -in setFile.json
Client started!
Sent:
{
    "type":"set",
    "key":"person",
    "value":{
        "name":"Elon Musk",
        "car":{
            "model":"Tesla Roadster",
            "year":"2018"
        },  
        "rocket":{
            "name":"Falcon 9",
            "launches":"87"
        }
    }   
}
Received: {"response":"OK"}

> java Main -in getFile.json
Client started!
Sent: {"type":"get","key":["person","name"]}
Received: {"response":"OK","value":"Elon Musk"}

> java Main -in updateFile.json
Client started!
Sent: {"type":"set","key":["person","rocket","launches"],"value":"88"}
Received: {"response":"OK"}