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ASP.NET Core Demystified – Routing in MVC – Exception Not Found
ASP.NET Core MVC has introduced quite a few concepts that new (or new-to-ASP.NET) web developers might have some difficulty getting caught up with. My ASP.NET Core Demystified series is designed to help these developers get started building their own custom, full-fledged, working AASP.NET Core applications. In this part of the series, we’ll take a look at the concept of Routing and how we can use it to match URLs with actions. As always with my tutorials, there’s a sample project over on GitHub, so go take a look at that code and come along with me as we explore routing in ASP.NET Core! Routing is a general term used in ASP.NET Core for a system which takes URLs and maps them to controller actions, files, or other items. Said system involves the use of classes called route handlers, which do the actual mapping. Most of the time, you won’t be creating routes at such a low level (e.g. creating route handlers),. rather you will be defining routes and telling ASP.NET Core where those routes map to. There are two main ways to define routes: The two routing systems can co-exist in the same system. Let’s first look at Convention-based routing. Convention-Based Routing In convention-based routing, you define a series of route conventions that are meant to represent all the possible routes in your system. Said definitions are located in the Startup.cs file of you ASP.NET Core project. For example, let’s look what might be the simplest possible convention-based route for an ASP.NET Core MVC application: This route expects, and will map, URLs like the following: However, what if we...
Machine learning has revealed exactly how much of a Shakespeare play was written by someone else – MIT Technology Review
Sign up for The Algorithm — artificial intelligence, demystified Also stay updated on MIT Technology Review initiatives and events? YesNo For much of his life, William Shakespeare was the house playwright for an acting company called the King’s Men that performed his plays on the banks of the River Thames in London. When Shakespeare died in 1616, the company needed a replacement and turned to one of the most prolific and famous playwrights of the time, a man named John Fletcher. Fletcher’s fame has since quelled. But in 1850, a literary analyst named James Spedding noticed a remarkable similarity between Fletcher’s plays and passages in Shakespeare’s Henry VIII. Spedding concluded that Fletcher and Shakespeare must have collaborated on the play. The evidence comes from studies of each author’s linguistic idiosyncrasies and how they crop up in Henry VIII. For example, Fletcher often writes ye instead of you, and ’em instead of them. He also tended to add the word sir or still or next to a standard pentameter line to create an extra sixth syllable. These characteristics allowed Spedding and other analysts to suggest that Fletcher must have been involved. But exactly how the play was divided is highly disputed. And other critics have suggested that another English dramatist, Philip Massinger, was actually Shakespeare’s coauthor. Which is why analysts and historians would dearly love to determine, once and for all, who wrote which parts of Henry VIII. Enter Petr Plecháč at the Czech Academy of Sciences in Prague, who says he has solved the problem using machine learning to identify the authorship of more or less every line of...
Angular 2 and .NET Core – route directly to your components· jonhilton.net
Last time out, we took a quick look at creating a simple HelloWorld component and displayed it on one of our existing web pages using its selector. <helloworld></helloworld> Which rendered something like this… Using the helloworld selector you can now include this component anywhere you like in your app, it doesn’t matter how many times you use it. Anywhere you can write html, you can include your component; this includes in the template of another component. For example, you can display your helloworld component in the template for the home component. <h1>Hello, world!</h1> <helloworld></helloworld> <p>Welcome to your new single-page application, built with:</p> <ul> <li><a href='https://get.asp.net/'>ASP.NET Core</a> and <a href='https://msdn.microsoft.com/en-us/library/67ef8sbd.aspx'>C#</a> for cross-platform server-side code</li> <li><a href='https://angular.io/'>Angular 2</a> and <a href='http://www.typescriptlang.org/'>TypeScript</a> for client-side code</li> <li><a href='https://webpack.github.io/'>Webpack</a> for building and bundling client-side resources</li> <li><a href='http://getbootstrap.com/'>Bootstrap</a> for layout and styling</li> </ul> </pre> Get the code: ASP.NET Core and Angular 2 Weather Checker Source Code Get the code: ASP.NET Core and Angular 2 Weather Checker Source Code I hate SPAM and will keep your email address safe. You will be signed up to my weekly emails and can easily unsubscribe if you’d rather not receive them. Route to a component All well and good, but what if we want to show this content by itself, not nested in another page. The Angular 2 router is a powerful tool which enables you to do just that. Specifically you can configure it to route to a component when the user enters a specific url for your site. So in this case, we could configure it so that navigating to http://thissitesaddress.com/hello routes directly to the hello world...
How Does Mobile App Development Help Your Business?
Asking for the importance of mobile app development in any business is similar to asking for the requirement of emails when we had a system for sending letters. It is not about communication, but the convenience that the mobile applications are providing in terms of customer engagement and increased accessibility is way ahead. Mobile App Development is one of the best inventions of the human being as it makes the customer access easier and exciting towards any business. Before moving forward, let’s get a glimpse of what exactly mobile app development is or what is the exact motto of mobile app development. What Is Mobile App Development? In simple words, mobile app development is the process of creating software applications that are operable on mobile devices. These are designed in such a way that they get installed on mobile devices. It also grabs the internal or external space of the device for providing a proficient response. Mobile App Development is not restricted to industries or huge organizations but also open to all the local as well as high-grade businesses. Those businesses may include e-commerce, reservations or appointments, Food Delivery apps, a variety of payment apps, social media apps, etc. The eCommerce industry is one of the most challenging industries for mobile app development. The reason behind this is, most of the topmost eCommerce industries are coming up with the most eye-catching features that fascinate the customer towards the mobile application. Why Mobile App Development is Required? Customer Engagement: Mobile applications can be installed on any of the iOS or Android devices; by this your store will reach most of...
There’s No Margin for Error in Port Cyber Security
There’s No Margin for Error in Port Cyber Security By Joel Snape 03-09-2021 03:08:16 With the global shipping industry already under pressure, Joel Snape, Security Researcher at Nettitude, explains why addressing the risk to port infrastructure from cyber-attack has never been more critical. In early November 2020, the 20,400 TEU Ever Grade was forced to skip its scheduled call at the UK’s Felixstowe port, instead heading straight to Rotterdam and unloading UK-bound containers there for onward transport via London Thamesport. Similarly, the first call of CMA CGM’s new ultra-large container vessel to Southampton was cut short with around a thousand containers staying aboard until a later visit. The UK’s port infrastructure has never before been under such strain – the double challenges of COVID-19 and Brexit mean that freight volumes are at an all-time high. This has caused significant backlog with importers struggling to obtain their goods and factories pausing manufacturing lines due to a shortage of component parts. Although this is not the result of any kind of malicious activity, it has sharply highlighted the significant impact that port disruptions can have on the wider economy. With the global shipping industry already under pressure, and the UK facing new challenges in 2021 as the Brexit transition period has ended, addressing the risk to port infrastructure from cyber-attack has never been more critical. The risk is not just academic – 2020 has seen the IMO, MSC and CMA CGM both attacked, and port infrastructure in the USA targeted by ransomware. In Iran a cyber-attack on the Shahi Rajaee port, allegedly carried out by Israel, cased significant disruption to both...
10 Things Every Modern Web Developer Must Know
Web development is a huge field, with a lot to learn. It can be overwhelming to decide what to spend your precious time learning. But there are some core skills that you can count on. These ten skills will improve your website building and streamline your workflow. Hypertext markup language (HTML) is the backbone of all websites. Some tools will allow you to create websites without writing HTML, but HTML takes your web development to the next level. Coding in HTML gives you more control over the content and understanding HTML will help you diagnose issues faster. You can also add SEO information directly in your HTML to help web crawlers read your page and increase your visibility. The power of cascading style sheets (CSS) has grown. Developers used to primarily use CSS to define the color and layout of a website, but now it can handle animation and some interactive design. However, one of its most important features is responsive design. Tech moves fast! Stay ahead of the curve with Techopedia! Join nearly 200,000 subscribers who receive actionable tech insights from Techopedia. Nowadays, users expect websites to seamlessly transition from computer to tablet to mobile. Responsive design ensures that the display is optimized for each platform. A CSS concept that will take your layout to the next level is flexbox. It is a layout mode that makes creating flexible responsive layouts simple. If HTML is the backbone of the website, JavaScript is the brain. Websites are no longer electronic versions of newsprint. Users expect interactivity—and interaction is the basis for many designs these days. To add this interactivity,...
★ Building a realtime dashboard powered by Laravel, Vue, Pusher and Tailwind (2018 edition)
At Spatie we have a tv screen against the wall that displays a dashboard. This dashboard displays the tasks our team should be working on, important events in the near future, which tasks each of our team members should be working on, what music they are listening to, and so on. Here’s what it looks like: We’ve open sourced our dashboard so you can view the entire source code on GitHub. It is built with Laravel 5.7, Vue and Tailwind CSS. This dashboard is not entirely new. The initial version was published a couple of years ago. At our company, we like to tinker with new stuff. That’s why we perform a big cleanup of the source code every year. We also update all the dependencies and technologies used. This year we focused on updating the design. The dashboard now uses Tailwind CSS. In this blog post, which is an update to the previous one, I like to explain how this dashboard is built. You’ll need to be familiar with both Laravel and Vue to get the most out of this post. If you need to brush up your Vue knowledge, I can highly recommend Laracasts lessons on Vue. History # We’ve had a dashboard at Spatie for quite some time now. Before our current Laravel-based one we used Dashing, a framework to quickly build dashboards. The framework was created by the folks at Shopify and uses Ruby under the hood. When I first built our dashboard, a few years ago, we were at a crossroads with our company. There wasn’t much momentum in the PHP world and we...BEST SOFTWARE DEVELOPMENT COMPANIES IN SINGAPORE
Hello everyone! Vinova is proudly featured by BestInSingapore as one of the Best Software Development Companies in Singapore. Please celebrate the moment with us! For more information, you can browse this URL: The 25 Best Software Development in Singapore BestInSingapore previously voted us as one of the Best IT Companies in Singapore too. Thank you for your trust in Vinova. And to the Vinova team: well-done! The 17 Best Singapore IT...
Hermes: An open source JavaScript engine optimized for mobile apps, starting with React Native
Mobile applications are growing larger and more complex. Larger apps using JavaScript frameworks often experience performance issues as developers add features and complexity. These issues are generated from various spots, but the people using these apps expect them to run smoothly, regardless of the device they are on. To increase the performance of Facebook’s apps, we have teams that continuously improve our JavaScript code and platforms. As we analyzed performance data, we noticed that the JavaScript engine itself was a significant factor in startup performance and download size. With this data in hand, we knew we had to optimize JavaScript performance in the more constrained environments of a mobile phone compared with a desktop or laptop. After exploring other options, we built a new JavaScript engine we call Hermes. It is designed to improve app performance, focusing on our React Native apps, even on mass-market devices with limited memory, slow storage, and reduced computing power. At , we announced the Hermes JavaScript engine. We have , as well as integration with Hermes for React Native. We are excited to work with the open source community and have developers start using Hermes today. How Hermes improves React Native performance For JavaScript-based mobile applications, user experience benefits from attention to a few primary metrics: The time it takes for the app to become usable, called time to interact (TTI) The download size (on Android, APK size) Memory utilization Metrics for MatterMost React Native app running on a Google Pixel, similar in performance to popular phones in markets like India. Notably, our primary metrics are relatively insensitive to the engine’s CPU usage...Get Up to Date with the Latest Mobile App Development Trends of 2018
The introduction of highly smart gadgets such as the Smartphones, tablets, iPads and portable notepads etc. has witnessed not only the advent of mobile and web applications, but also their remarkable growth and response amid the end users. This incredible growth is significantly increasing with each passing month and year. According to a survey, about 197 million apps has already been downloaded globally, whereas the data of App Annie says that about more than 25 billion iOS apps and around 90 billion Android apps were downloaded the previous year 2016. Talking about the current trends prevailing this year, the social media apps such as Facebook, Twitter, Instagram and Whatsapp are still leading the way forward, followed by Google apps like YouTube, Gmail and Google Chrome etc. Even the popular gaming apps are also not lacking behind. This huge drift in the popularity of app category has brought change in the mobile app development trends influencing the concerned business to a great extent. Within less than a couple of months, we will be welcoming the new year 2018 and believe it, mobile app development industry is going to get even steeper where getting your apps visible on the App Store will perhaps be the toughest task for the app developers. But as always the pre-preparations help before undertaking any challenge, having a wide knowledge on the mobile app development trends of 2018 will prove beneficial and fruitful. 1. Artificial Intelligence will Gain the Spotlight If you ask an experienced app developer, the term Artificial Intelligence is no more alien to him considering the fact that it has gained a good...
Cyber security attack reports surge by 65 percent in 2020 | RNZ News
The number of cyber security attacks being reported in New Zealand is on the rise, with nearly $17 million lost over the past year as a result. In total, $16.9 million was lost to attackers in 2020 – the most in a single year since CERT was launched. Photo: 123RF The data comes from CERT NZ’s annual summary for 2020, which has been released today. It showed the agency received nearly 8000 reports of cyber security incidents last year, a 65 percent increase on the year before. “We’re developing a much richer understanding of the types of threats and issues that are affecting New Zealanders, and New Zealand businesses,” said CERT NZ director Rob Pope. Phishing and credential harvesting (where an attacker collects personal data) were the most reported form of attacks, and were up 76 percent on 2019. Behind those were scams and fraud reports, up 11 percent, and malware reports, up 2008 percent. In total, $16.9m was lost to attackers – the most in a single year since CERT was launched. Pope said he was not surprised more attacks, and more financial loss was being reported. “New Zealand’s an exceptionally attractive country, with a very trusting set of communities. “We are quite exposed to the very opportunistic and sophisticated approaches and campaigns these cyber criminals are applying.” The increases are not necessarily down to more attacks happening, however, but probably down to more people recognising CERT and reporting a crime if and when it happens. The agency is now in its fourth year, but Pope said he still did not think they had ascertained the true scale...
MD Bootstrap Ruby on Rails tutorial
Kudos go to kenc138 for preparing the original version of this guide. Today you will learn how to get your Ruby on Rails project totally MDBed! Ruby language syntax is easy to understand, while Rails help developers increase their productivity by allowing them to focus on designing and implementing features, and not worrying about setting up server connections or planning out the folder structure. Last but not least, the framework is open source. If you notice an error, or something below is not clear to you – we invite you to visit our support forum. What will I learn? Note, that the guide takes you from the bottom up, and its two first steps are to be omitted by people who already have their projects ready. 1. Get yourself some Rails:Make sure you have all it takes to start a new project: 2. Preparing the project: The CLI will then inquire about your RubyGems password – if you don’t have one, no problem – just press CTRL + C. To install gems, simply hit from within the project root directory. 3. Time to get the basic gems! It your project does not use them already, go to ./Gemfile and add these, preferably around lines 29 / 30: 4. 5. Time to get real & get your MDB package somewhere handy.Create /vendor/assets/javascirpts/ directory in your rails project, and move these bad-boys inside: 6. Create, similarly, a /vendor/assets/stylesheets/ directory, and place our blazing styles inside for them to reign: 7. Adding JavaScriptOk, now, the doctor is in! Time to have some little work done on the JavaScript Manifest. It defines what scripts exactly get processed in the so-called “asset pipeline” – it is the...
Multiple File Upload with Dropzone.js and Laravel MediaLibrary Package – Laravel Daily
File upload is one of the most popular features in modern web. And we have quite a few libraries that can help us to build upload form. Let’s take two of my favorites – Dropzone on the front-end, and Spatie MediaLibrary on the back-end, and build a great uploading experience, in this tutorial. First, what we’re building here. A simple for to add Projects, where you can also upload multiple files for every project. As you can see, file upload has a big block instead of just an input file field. That’s how Dropzone works. But let’s take it one step at a time. Step 1. MediaLibrary Installation Let’s prepare the back-end, where we will actually store the files. We install the package like this: Next, we publish their migration files, and run migrations: By this time, we should have media table in our database. This table uses Polymorphic Relations, so in our case will store records with model_type field equals app\Project, which means that media file will be assigned to a project (not to a user, or anything else). Step 2. Adding Dropzone.js code In our Blade file, with the form, we need to add JavaScript code for Dropzone. There are multiple ways to do it, depending how you structure your whole Blade architecture, but here’s my version of resources/views/admin/projects/create.blade.php: Ok, so what you can see here? Ok ok, let’s add the JavaScript to make it actually work. At the end of the Blade file, I have this section: Looks complicated, doesn’t it? No worries, I will point to the actual places you need to look at: Notice:...
‘Poverty line’ concept debunked by new machine learning model
Credit: Unsplash/CC0 Public Domain Mathematicians have used machine learning to develop a new model for measuring poverty in different countries that junks old notions of a fixed ‘poverty line’. The study by academics at Aston University, published in the journal Nature Communications, suggests mainstream thinking around poverty is outdated because it places too much emphasis on subjective notions of basic needs and fails to capture the full complexity of how people use their incomes. They say their new model—which uses computer algorithms to synthesize vast amounts of spending and economic data—could help policymakers worldwide predict future poverty levels and plan interventions to alleviate the problem. “No-one has ever used machine learning to decode multidimensional poverty before,” said lead researcher Dr. Amit Chattopadhyay of Aston University’s College of Engineering and Physical Sciences. “This completely changes the way people should look at poverty.” Established measures of poverty attempt to identify a threshold monetary level below which a person or household is defined as ‘poor’. These definitions trace their origins back to methods developed in the 19th and early 20th century by reformers such as Ernst Engel and Seebohm Rowntree. Currently, the World Bank sets the International Poverty Line at US$1.90 per day, with around 10% of the world’s population—about 700m people—living on less than this. This is based on a subjective assessment of income needed to cover basic needs in the poorest countries, adjusted for purchasing power parity (PPP). In the new study, the researchers analyzed 30 years’ worth of data from India, dividing expenditure into three broad categories of ‘basic food’ such as cereals, ‘other food’ including meat and ‘non-food’...
Flutter vs React Native: Best Framework for App Development
If you want your mobile application to work on different platforms using a single code base, you can save your time and money by developing a cross-platform app. Moreover, users can realize results extracted from cross-platform apps likewise to that of the native apps. Flutter and React Native are the two most used and effectively efficient cross-platform app development frameworks in 2020. React Native framework was developed and launched by Facebook, whereas Flutter was developed and launched by Google. Rising Significance of Cross-Platform Development With the increasing popularity of mobile applications these days, mobile app development companies focus on creating applications that can remain competitive in different market requirements. Application developers are looking for alternatives to help them develop applications with faster speed and fewer resources. More importantly, both Apple and Google already provided app developers with native tools to develop applications. iOS app developers use Xcode & Swift, and Android app developers deploy technologies like Android Studio & Kotlin or Java to develop mobile applications. If we talk about a few years ago, there were not enough and adequately well technologies for cross-platform app development. This restricted the developers’ capabilities and affected the cross-platform development of applications in the wrong way. However, people are continuing to choose cross-platform development over native app development, which has led to a significant transformation in mobile app development with several significant cross-platform development benefits. Before we get into the comparison of the two most popular frameworks, we would like to draw your attention to the statistics reported by Statista in 2019 on the cross-platform mobile frameworks used by software developers globally. In...
Grants For Mobile App Development — Who They’re For and How to Find Them
Creating your own mobile app is hardly a cheap endeavor. In fact, building a high-quality app can get very expensive very quickly. So how do you mitigate those costs? While there are some funding options, like investor money or crowdfunding, grants are a great way to offset some of those expenses until your app starts making money on its own. The process of finding and applying for grants can be a bit daunting, but it’s also worthwhile if you think you might qualify. A grant is essentially free money that you can use to get your app off the ground, debt-free. In this article, we’ll talk about the best grants for mobile app developers, how to apply, and why they’re such a great source of funding. Chapter #1: What is a Grant? Grants are funds distributed by the government or other reputable organizations that don’t need to be repaid. They’re designed to fund entrepreneurs and researchers with innovative ideas that can better society. By funding new products and ideas, grants stimulate the economy and improve the community as a whole. The money for government grants comes from local or federal taxpayers, and grants from private organizations are typically funded through donations. 1.1 Who are Grants For? In order to receive a grant, you’ll need to apply, as funds are limited. The application process can vary depending on what type of grant you’re applying for and how much money it is. Governing bodies consider a variety of factors when deciding who to award grants to. They’ll look at your business to plan to see how your app will affect the...
Church Mother bodies Appeal to President Lungu Not to Sign the Cyber Security and Crimes Bill into Law | The Zambian Observer
The leaders of the Church Mother bodies namely the Council of Churches in Zambia (CCZ), the Evangelical Fellowship of Zambia (EFZ), and the Zambia Conference of Catholic Bishops (ZCCB) have called on President Edgar Lungu not to sign the Cyber Security and Cyber Crimes Bill of 2021 into law. In a statement released to the media addressing a number of issues patterning to the coming general elections, the church mother bodies said that although the overall objectives of the bill are noble, they are are concerned that this being an election year, when the atmosphere is politically charged, a number of stakeholders will be suspicious of the intentions of government and the possible abuse of the rights for those who already feel oppressed. The statement further said that the Church mother body is equally aware that many Zambians and organisations, such as the Law Association of Zambia (LAZ), political parties, and a number of CSOs have raised oncerns about this bill and demanded that it be withdrawn for further consultations. The statement further added that the Parliamentary Committee that considered the bill also recommended its withdrawal and ss such, people are asking as to why the House moved on without taking into account the concerns of all key stakeholders. “Therefore, we appeal to the conscience of the President not to sign the bill into law,” the statement read. Below is the full statement STATEMENT BY THE THREE CHURCH MOTHER BODIES ON THE ELECTORAL PROCESS IN ZAMBIA “A call for free, fair, credible and peaceful elections” “Let your hearts be broken, not your garments torn, turn to Yahweh your God...
