marklawlor/Error regex

## Error regex
.*"status":400.*

## Lambda.js
exports.handler = function(event, context) {
    context.fail(JSON.stringify({
        status: 400,
        body: {
            test: "message"
        }
    }));
};

## Response Mapping Template
$input.path('$.errorMessage')
	exports.handler = function(event, context) {
	context.fail(JSON.stringify({
	status: 400,
	body: {
	test: "message"
	}
	}));
	};