public class ApiGatewayProxyRequest {
    private String resource;
    private String path;
    private String httpMethod;
    private Map<String, String> headers;
    private Map<String, String> queryStringParameters;
    private Map<String, String> pathParameters;
    private Map<String, String> stageVariables;
    private Context context;
    private String body;
    private boolean isBase64Encoded;
    ... snip
}