APIGateway_Resource_Policie. Allow IP.

apigateway_resource_policie.json

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Principal": "*",
            "Action": "execute-api:Invoke",
            "Resource": "arn:aws:execute-api:ap-northeast-1:*:*/test_stage/POST/*",
            "Condition": {
                "IpAddress": {
                    "aws:SourceIp": [
                        "xxx.xxx.xxx.xxx",
                        "xxx.xxx.xxx.xxx"
                    ]
                }
            }
        }
    ]
}