Option to validate all responses

I can’t find an option to validate all responses, it gets repetitive to keep doing.

const validationError = res.validateResponse(200, json);
if (validationError) {
    return next(validationError);
}

res.json(json);

[jsdevel]

I’m wondering if we can close this issue now, because I’m having a hard time thinking of an alternative that isn’t too prescriptive. Perhaps this could be documented in openapi-response-validator’s README? @maxwellb thoughts on submitting a PR to submit an example with your findings?

[Frizzled]

If you want to automatically validate responses with res.json() use this express middleware:

module.exports = function() {

    return async function(req, res, next) {
        let resJson = res.json;

        res.json = function() {
            let statusCode = res.statusCode || 200;
            let validationError = res.validateResponse(statusCode, arguments[0]);
            if (validationError) {
                console.error(validationError.errors);
                if (process.env.STRICT) {
                    return res.status(500).json('Unsupported implementation', validationError);
                }
            }
            resJson.apply(this, arguments);
        };

        next();
    };
};