Be the first user to complete this post
|
Add to List |
Understanding expressjs middleware with a visual example
A middleware function takes 3 arguments as seen below.
function(req, res, next){
// Your business logic goes here
}
For example, you could implement a simple request logger by defining middleware function that does just that.
function(req, res, next){
// Basic logging for all the routes
console.log(req.method + ':' + req.originalUrl);
next();
};
Also Read:
- What is npm shrinkwrap and when is it needed
- Resolved - Error: listen eaccess using nodejs and pm2
- Installing, Listing and Uninstalling packages using npm
- Use node in es6 syntax with babel transpiling
- Access the request body of a post request in your nodejs - expressjs app.