In today’s lesson, I learned how to pipe webcam input and manipulate the stream on the fly. In comparison to the other lessons, this lesson required the use of
npm. The final code can be found on Day 19 – Webcam Fun.
Compressing files plays a very important role when transferring huge amounts of data via the internet. In today’s lesson, I’ve learned how to compress and decompress text files. The code snippets can be found on
Did I really miss a day yesterday? 😯 In fact, I did! I’m currently on Bali and it seems to me that the concept of time does not apply to this island. While having very intense conversations about life, I totally missed yesterday’s challenge. Nevertheless, I followed up where I left and in today’s challenge, I focused on streams. The code snippet can be found on
Today I learned how to use Node.js in combination with
Socket.IO. Within the lessons, I learned how to create two mini-applications. One application was to create quotes within an admin interface which then will be displayed in real time on another page. The second application was to dynamically change the background colour or paragraphs. Today’s code snippets can be found on https://github.com/nielslange/30-days-of-node-js/tree/master/Day%2014%20-%20Intro%20to%20socket.io.
Another day, another lesson. Today, I’ve learned how to create a signup form using Node.js, Express & MongoDB. The application uses one Node.js file and two HTML files. The code of today’s lesson can be found on
How would applications look like if no data could be created, read, updated and deleted? That’s when
Mongo DB comes into the game. Today’s lesson explained the concept of CRUD using Mongo DB. While I’m very familiar with the CRUD concept, I do have to admit that I was struggling in setting up Mongo DB initially. However, after the database was up and running, creating the code snippets was rather straightforward. Today’s code snippets can be found on https://github.com/nielslange/30-days-of-node-js/tree/master/Day%2012%20-%20CRUD%20in%20MongoDB.
Another day, another challenge. Today I’ve learned how to create a server as well as basic routing using the Node,js package
Express. Today’s code snippet can be found on https://github.com/nielslange/30-days-of-node-js/tree/master/Day%2011%20-%20Express%20Framework and requires Postman to fully test it.
In 1981, shortly before I turned one year, the James Bond movie
For your eyes only was released. Encryption and decryption was important back then and is probably even more important today. That’s why today’s lesson covered the topic Encryption & Decryption. As usual, the code snippets can be found on https://github.com/nielslange/30-days-of-node-js/tree/master/Day%2010%20-%20Encryption%20%26%20Decryption.
Today’s lesson was about hash functions and HMAC, which both are helpful to encrypt and decrypt data. I’ve learned about various encryption methods and how to use them. The code snippets can be found on
I cannot believe it, I’ve just published
my first npm package. Today’s lesson was about how to publish npm module.
The biggest lesson I learned today is that publishing npm packages it very easy and straightforward. I’ve also learned that I should run extensive testing before publishing the npm package. As you can tell on the version number of my module, I haven’t quite followed that approach initially. Nevertheless, I’m happy that my first package is available for the npm community and today’s code snippets can be found on