Run GraphQL in Local Via SLS

{
    "name": "index",
    "version": "1.0.0",
    "description": "",
    "main": "index.js",
    "type": "module",
    "scripts": {
        "test": "echo \"Error: no test specified\" && exit 1"
    },
    "author": "",
    "license": "",
    "dependencies": {

        "serverless-appsync-plugin": "^1.14.0",
        "winston": "^3.8.2"
    },
    "resolutions": {
        "serverless-appsync-simulator/cfn-resolver-lib": "1.1.7"
    },
    "devDependencies": {
        "cfn-resolver-lib": "^1.1.7",
        "serverless-appsync-simulator": "^0.20.0",
        "serverless-offline": "^12.0.4"
    }
}

If you are facing plugin(cfn-resolver-lib) issue try this,

npm un cfn-resolver-lib
npm i -D cfn-resolver-lib@1.1.7

running Serverless in local along with GraphQL,

sls offline start --stage 'your stage' --region 'your region'