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Category: Programming

Client-server communication using ESP8266
  • ESP8266

Client-server communication using ESP8266

  • Posted on 2018-07-122021-03-07
  • by dulare

As I wrote in my previous post, I’m retrieving the information from my electricity meter and I’m sending it to my server to process the data. In this post, I…

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IoT impulse counter on ESP8266
  • ESP8266

IoT impulse counter on ESP8266

  • Posted on 2018-07-112021-03-07
  • by dulare

As I wrote before in my post about the change counter, I own an electricity meter which is sending 800 impulses per kWh of the power usage. I used to…

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Count changes and save to log file
  • ESP8266

Count changes and save to log file

  • Posted on 2018-06-252021-03-07
  • by dulare

I own an electricity meter which is sending 800 impulses per kWh of the power usage. I used to connect it to the Arduino board which was counting these impulses and…

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Sequelize adjustments – ORM in Express
  • nodejs

Sequelize adjustments – ORM in Express

  • Posted on 2018-04-062019-12-24
  • by dulare

As I stated in my previous posts ([1], [2]), I decided to use Sequelize as an ORM for my project. I don’t want to deal with the database connections and…

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Session management in Express
  • nodejs

Session management in Express

  • Posted on 2018-03-282019-12-24
  • by dulare

One of the essential elements of the web application is session management. Without it we are not able to handle shopping carts, we are not able to give our users…

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Counting unique domains from email address field
  • Programming

Counting unique domains from email address field

  • Posted on 2018-03-272019-12-24
  • by dulare

I would like to perform some basic checks for email addresses my users are entering. Sometimes they are simply making a typo in the domain part of the email. Typically…

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Application configuration in Express
  • nodejs

Application configuration in Express

  • Posted on 2018-03-202019-12-24
  • by dulare

There are various things to be configured in the web application. I just started to test various databases and I wanted to have a place to store my database configuration…

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Multi-level menu in Express
  • nodejs

Multi-level menu in Express

  • Posted on 2018-03-172019-12-24
  • by dulare

I created the single level menu at first and it was working fine. I also noticed that on almost all pages I’m working with, the menu has more than one level.…

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Passing variables through Express middleware
  • nodejs

Passing variables through Express middleware

  • Posted on 2018-03-162019-12-24
  • by dulare

Almost in all of my projects, I have a need to store some application based variables. In some cases, I change them on each request (for example – counters). In…

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Testing Express with Mocha and Chai
  • nodejs

Testing Express with Mocha and Chai

  • Posted on 2018-03-142020-10-10
  • by dulare

I don’t want to write another testing tutorial. It will be the only kind-of tutorial because I simply want to write down what I did to introduce tests to my…

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