jwt authorizer aws api gateway

jwt authorizer aws api gateway.txt

https://medium.com/swlh/how-to-protect-apis-with-jwt-and-api-gateway-lambda-authorizer-1110ff035df1

https://github.com/alexishida/lambda-authorizers-collections

exports.handler = async (event) => {
    if(event.authorizationToken === "OK")
        return allowPolicy(event.methodArn);
        
    return denyAllPolicy();
};
function denyAllPolicy(){
    return {
        "principalId": "*",
        "policyDocument": {
            "Version": "2012-10-17",
            "Statement": [
                {
                    "Action": "*",
                    "Effect": "Deny",
                    "Resource": "*"
                }
            ]
        }
    }
}
function allowPolicy(methodArn){
    return {
        "principalId": "apigateway.amazonaws.com",
        "policyDocument": {
            "Version": "2012-10-17",
            "Statement": [
                {
                    "Action": "execute-api:Invoke",
                    "Effect": "Allow",
                    "Resource": methodArn
                }
            ]
        }
    }
}