I want to do something like this. I want to use different middleware if there is or isn't a certain query string.
app.get("/test?aaa=*", function (req, res) {
res.send("query string aaa found");
});
app.get("/test", middleware, function (req, res) {
res.send("no query string");
});
However, I failed. Can anyone help me? Thanks. EDIT: I only need to add the middleware, I dont care what the value of the query string is
If your intention is to run the same route handler and call the middleware depending on whether the query string matches, you can use some sort of wrapping middleware:
var skipIfQuery = function(middleware) {
return function(req, res, next) {
if (req.query.aaa) return next();
return middleware(req, res, next);
};
};
app.get("/test", skipIfQuery(middleware), function (req, res) {
res.send(...);
});
If you want to have two route handlers, you could use this:
var matchQueryString = function(req, res, next) {
return next(req.query.aaa ? null : 'route');
};
app.get("/test", matchQueryString, function (req, res) {
res.send("query string aaa found");
});
app.get("/test", middleware, function (req, res) {
res.send("no query string");
});
(these obviously aren't very generic solutions, but it's just to give an idea on how to solve this)
You can do this:
app.get("/test", middleware, function (req, res) {
res.send("no query string");
});
middleware = function(req, res, next) {
if(!req.query.yourQuery) return next();
//middleware logic when query present
}
