Let’s look at “state” in Actix-web HttpRequest::app_data app_data is a method provided by actix-web, specifically for the App and HttpRequest types. Here’s how it works: Summary: Example code Alternatively, use the HttpRequest::app_data method to access data in a handler. And here is the main function The line Data::clone(&data) is effectively cloning a reference to the […]
Let’s look at namespaces, scope, and state: https://actix.rs/docs/application Here’s a real-world use case where application state is essential in an Actix Web application. Consider a scenario where you have a web service that provides exchange rates for different currencies. You might want to maintain a cache of these rates in the application state to avoid […]
Regular functions block threads Async doesn’t block threads Before we look at what tokio does, let’s consider how we’d run 3 tasks if they were ‘blocking’ Without Tokio (blocking): If you used std::thread::sleep, the execution would pause (block) for each function call until the sleep duration completes. This means that when you execute the code […]
Code plus screenshots – how to manipulate the layout in Rust + iced.rs Credit : https://jl710.github.io/iced-guide/index.html © Héctor Ramón (hecrj) for the iced logo. just using “row” Change “row” to “column” just using “column” Column is centered…but not the text! 🤔 Column is centered and the text! 😀 Centre the window – iced.rs – 0.13 […]
Let’s pick the code apart for a timelock smart contract and with a bit of help from chatGPT and the Stellar documentation we’ll make sure we understand every part of it. https://github.com/stellar/soroban-examples/blob/main/timelock/src/lib.rs Timelock This is how it works with Alice and Bob: In summary, the contract protects the funds by ensuring that only the designated […]
Testing Rust code for “signup” and checking the token. Add Scope and then you can create the JWT. Watch the YouTube video here: https://youtu.be/e4a8lOT_Gxg https://surrealdb.com Use the bearer token created by the rust code, not the one here as it will have expired WEBDOCK Linux VPS Hosting
https://en.wikipedia.org/wiki/Factory_method_pattern Let’s look at another design pattern – “The factory pattern” If you like these articles, there is a great site where you can learn more about Design Patterns : https://refactoring.guru/ The factory pattern is a design pattern in programming that helps create objects (or instances of classes) without telling the code exactly which kind […]
In this article I show some code to web scrape EBAY using Rust and a proxy provided by ScrapeOps The code below uses the ScrapeOps endpoint : “https://proxy.scrapeops.io/v1/” and the requests are forwarded on to your chosen url to scrape. How to get an API key? You can get a free one, with 1000 tokens […]
We’ll convert png to jpg, but the same concept will apply to doing the reverse of this. You can grab png datasets from Kaggle If you just want to skip to the code, check out these links: What is a JPEG ? Let’s first understand the structure of a *.jpg file The structure of a […]
