Tohuwabohu excorcism

At most follow this tutorial: https://devcenter.heroku.com/articles/node-websockets

1. BUGS: Foreman is not found and Bad file descriptor error. Solutions:
   http://jasonwatmore.com/post/2013/11/20/Getting-Foreman-working-on-Windows-7-after-installing-the-Heroku-Toolbelt.aspx

When the server-code is changes, then the node.js app should be restarted.
To achieve hot-code-replacement the node.js app should be run differently: by using the tool nodemon.

To install nodemon on server do

sudo npm install -g nodemon

It then should be used as following to start a node.js application named “server.js”

nodemon server.js

Heroku is the hosting, which is able to host node.js apps too!

The howto about deploying the app is here: https://devcenter.heroku.com/articles/getting-started-with-nodejs

Addons have to be explicetely enabled on Heroku. Possible addons are

• WebSockets
• MongoDB

How to do that is described here: https://devcenter.heroku.com/articles/node-websockets

MongoDB is a NoSQL DB. To use a free Plan from mongohq.com - create an account - add your data to the url

mongodb://<user>:<password>@troup.mongohq.com:10078/buzznodejs

- use the library mongoskin as stated here

npm install mongoskin

- Here is a short mongoskin syntax describtion: http://www.hacksparrow.com/mongoskin-tutorial-with-examples.html

 
// require mongoskin - the mongoDB library
var db = require('mongoskin').db('mongodb://<user>:<password>@troup.mongohq.com:10078/buzznodejs');

//insert some data
db.collection('bands').insert({ name: "guns n' roses", members: ['axl rose', 'slash', 'izzy stradlin', 'matt sorum', 'duff mckagan'], year: 1986 }, function (err, result) {
    if (err) throw err;
    if (result) console.log('added!');
});

// retrieve the collection named 'bands'
db.collection('bands').find().toArray(function (err, result) {
    if (err) throw err;
    console.log(result);
});

https://www.freecodecamp.org/news/npm-vs-npx-whats-the-difference/

Sometimes you might want to take a look at a specific package and try out some commands. But you cannot do that without installing the dependencies in your local node_modules folder.

That’s where npx comes in.

npx @pactflow/swagger-mock-validator@latest <path to oas> <path to pact file>