app.param([name], callback) Add callback triggers to route parameters, where name is the name of the parameter or an array of them

req.ip Contains the remote IP address of the request. When the trust proxy setting does not evaluate

Node.js vulnerabilities directly affect Express. Therefore keep

req.app This property holds a reference to the instance of the Express application that is using the middleware. If

res.render(view [, locals] [, callback]) Renders a view and sends the rendered HTML string to the client. Optional parameters:

req.param(name [, defaultValue]) Deprecated. Use either req.params, req.body or req

app.get(name) Returns the value of name app setting, where name is one of strings in the app settings table. For example:

app.on('mount', callback(parent)) The mount event is fired on a sub-app, when it is mounted on a parent app. The parent app is

app.engine(ext, callback) Registers the given template engine callback as ext. By

Overview The term “production” refers to the stage in the software lifecycle when an application or API is generally