Not sure if it’s the simplest solution, but you can write a middleware to intercept data written to the response. Make sure you disable app.compress()
.
function logResponseBody(req, res, next) {
var oldWrite = res.write,
oldEnd = res.end;
var chunks = [];
res.write = function (chunk) {
chunks.push(chunk);
return oldWrite.apply(res, arguments);
};
res.end = function (chunk) {
if (chunk)
chunks.push(chunk);
var body = Buffer.concat(chunks).toString('utf8');
console.log(req.path, body);
oldEnd.apply(res, arguments);
};
next();
}
app.use(logResponseBody);