Below code is my express middleware call
var c = app.use(myMiddleware());
console.log(c);
// the middleware function
module.exports = function() {
return function(req, res, next) {
var b = {'A' : 1};
next();
}
};
In above code console.log print console once application started.
I want to return/pass a value from middleware to my express application. please any suggestion?
Set anything you want to use in request scope to req object.
app.use(function(req, res, next) {
var b = {'A' : 1};
req.b = b;
next();
});
then you can use it in your request handler:
app.get('/test', function(req, res){
console.log(req.b);
});
This should do it:
var c = app.use(myMiddleware({
callback: function(c) {
console.log(c)
}
}))
// the middleware function
module.exports = function(options) {
return function(req, res, next) {
var b = {'A' : 1}
next()
}
}
Or this:
var x = myMiddleware()
var c = app.use(x.function)
console.log(x.something)
// the middleware function
module.exports = function(options) {
options && options.callback && options.callback('Hello world!')
return {
function: function(req, res, next) {
var b = {'A' : 1}
next()
},
something: 'Hello world!',
}
}
