API Idempotency: Retry Requests Without Creating Duplicates
A timeout can hide a successful API request. Learn how operation keys, atomic database writes and a clear retry contract prevent duplicate work, with a tested Python and SQLite example.
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Web Development
Posts tagged Web Development, newest first.
CORS Errors Explained: Fix Preflight, Headers and Credentials
A CORS error is not always an API failure. Learn to inspect preflight requests, configure allowed origins and debug cookies without disabling browser security.
Docker Compose networking: localhost, names and ports
Docker works in your browser but fails in a container? Use a two-service example to choose the right hostname, port and listening address.
Cross Site Scripting — XSS Injections
XSS aka cross site scripting is a pretty common type of attack which has affect millions and is continuing to affect thousands. The simple…
Securing Apache2 — Ubuntu 18.04
Apache being one of the most popular options for creating a quick and simple web server, let us take you through on how you can secure…
Installing LAMP — Ubuntu 18.04
LAMP aka Linux, Apache, MySQL, and P HP, allows for easy hosting of websites or any apps. We will be using Ubuntu 18.04 to install LAMP…