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Create a simple messages service (part 1)

1- Install node and express dependencies npm init --yes npm install -s express 2- Create express lib and app variables var expres...
Create a simple messages service (part 2)

1- You can use app.get() to to show custom results to specific urls. For testing purposes, add the following inside the server.js file, afte...
How to setup express.js and execute server to display static content

1- Create a server.js file 2- In console, install node npm init --yes 3- In console, install express framework npm install -s express w...
Create a simple messages service (part 3: testing the POST service via Postman app)

1- We begin by making sure our post function is working properly. To do this, we add a post function below our get function from our "e...
How to create a json file and read object data via node.js

1- Create a demo.js file 2- Inside the file, create a dependency to node.js' file system var fs = require('fs') Please note...
Create a simple messages service (part 4)

1- To solve for the undefined message in the console, we need to install a body parser app. So, in console, type npm install -s body-pars...
Generate a package.json files with dependencies

A package.json file, a mong other things, it stores a list of the packages you depend on in your p...
How to read directories

1- Invoke the filesystem var fs = require('fs') 2- Use the function readdir() from the fs variable fs.readdir('c:/', (...
How to write to a json file

1- Call the filesystem var fs = require('fs') 2- Define the object to be added to the JSON file var data = { name: "raf...
How to create a simple module

1- Create a file called my-module.js 2- Add the following code: exports.myText = 'this is a test' 3- Save changes 4- Create a ...

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