In a ReactJS app i was calling an external API to get some news and display to the user. Every time this page was loading i had this external API call. So i need to make a small 5 minute caching of the result in order to avoid external calls. …

If you are using Auth0 with ReactJS you may need to get the user permissions (RBAC) in order to change some elements in your react app. I could not find any method in @auth0/auth-react so I tried a workaround for this but when i was creating a silent token the…

At MAD TV we are using Box as storage system for caching all our files. We are very happy with the service and it is-for my point of view- more reliable from Microsoft Sharepoint (onedrive for business etc). Box has an application to replace all network shares called Box Drive…

This is a very simple installation with no custom setup. Prerequisites Before start this tutorial you should know how to create , use and connect to an amazon ec2 instance. Step1 : Nginx Install and run nginx $ sudo amazon-linux-extras install nginx1 -y $ sudo systemctl start nginx.service Now navigate to a browser and…

The problem I don’t know why but php on my mac after a restart is missing the GMP e(GNU Multiple Precision) extension. So when i trying to use composer to install/update depedencies i get the following error. - web-token/jwt-core v1.3.7 requires ext-gmp * -> the requested PHP extension gmp is missing from…

Στις επόμενες ημέρες είναι εξαιρετικά πιθανό να χρειαστεί να δουλεύουμε απο το σπίτι. Έγιναν οι κατάλληλες κινήσεις από την εταιρία που εργάζεστε για να μπορέσετε να δουλέψετε απομακρυσμένα; Σε αυτό το άρθρο θα κάνουμε μια καταγραφή εργαλείων που θα μπορούσαν να κάνουν την ζωή μας πιο εύκολη. Φυσικά και θα…

I had a small request to display all the true/false combinations. The only catch was that 2 vars cannot be true,true or false,false . So .. var totalCombinatinations=0; for (let i = 0; i < 1 << 5; i++) { if (!(!!(i & (1<<3))==!!(i & (1<<2))) ) { console.log([!!(i & (1<<4)),!!(i…

Introduction The last 5 years, at Tychetech, we have been working with a major Real Estate organization in SE Europe for the digitalisation of their Real Estate Scientific Asset Management tools. We were lately asked to examine how we could boost the performance of their awarded Automated Valuation Model (AVM). What is Automated Valuation Model Automated…

A very common issue is that every time certbot perform an update from one version to another it is stop working when it is running on amazon ec2 instances # ./certbot-auto Upgrading certbot-auto 0.29.1 to 1.3.0... Replacing certbot-auto... Creating virtual environment... Installing Python packages... Installation succeeded. Traceback (most recent call last)…