Elixir is a dynamically-typed language. Types in Elixir are checked when a program runs, not when it compiles. If they don’t match up, an exception is thrown. In statically-typed languages, types are checked during compile time. This can help us write code that is correct, understandable, and refactorable. But it also introduces a certain focus on types as the foundation for your application. One interesting concept is to use types to model your business domain.

Having an understanding of what CI/CD entails makes you more valuable in today’s software development world. This noob’s guide to CI/CD mobile app development is ideal for mobile app developers who are new to CI/CD.

Sync Records Smart Service now available in Appian 22.2 release Data is the most important part of your business. It drives your business processes, as well as your customer and employee journeys. And with data being collected and stored in various systems, it can easily become outdated and lead to inaccurate business decisions. Though 91% of businesses say data-driven decision making is important to their success, only 57% of businesses are successfully implementing this.

As gas prices soar due to restrictions on both domestic oil and imports from oil-producing countries, we’ve shifted our collective focus to the energy sector. It’s increasingly apparent that the global oil and natural gas supply chain sits in a delicate balance—supply chain disruptions in one country can affect gas and oil prices around the world. If a top oil-producing nation ramps down natural gas production or distribution, additional supply must come from another nation.

The NoClassDefFoundError is a runtime error in Java that occurs if the Java Virtual Machine (JVM) or a ClassLoader instance attempts to load the definition of a class that could not be found. The class definition exists at compile-time but is not available at runtime.

A Java stack trace is displayed when an error or exception occurs. The stack trace, also called a backtrace, consists of a collection of stack records, which store an application's movement during its execution. The stack trace includes information about program subroutines and can be used to debug or troubleshoot and is often used to create log files. These exceptions could be custom (defined by the user) or built-in.

In this article, we’ve broken down the pros and cons of on-premise vs. cloud-based mobile testing, so you can be confident about your next steps in choosing an approach for your team and project.

PostgreSQL and MySQL are great for structuring data using relationships, but what if you don't always know the structure up-front? That's where `ActiveRecord::Store` really shines. It's like NoSQL, without changing databases.

Adam Law shares some practices and processes that his team uses to ensure that their finance app continues to serve the customer in the best possible way. We’re sharing them with you in the hopes that you pick up something new for your team!

Extreme makeover: Low-code edition Instagram did it in 2016, and again, in 2020. LinkedIn did it in 2018. And in 2022, it’s Appian’s turn to do it. Do what, you ask? Get a product makeover in time for the summer. A makeover is a pivotal moment in a product’s lifecycle, a sign of evolution to take the product experience to the next level. When iOS switched to its now-popular flat design from the older one, favored by Steve Jobs himself, it was a monumental shift in look and feel.

Offering customers a variety of ways to pay for your product allows for flexibility and ease. In general, there are two ways for customers to pay for usage: Post-paid and pre-paid. Pre-paid is sometimes also referred to as PAYG, or Pay-As-You-Go. Post-paid usage can sometimes lead customers to have billing surprises if they are not tracking their usage closely. This can cause headaches for these users and can also cause issues for the service provider.

Many API developers and companies struggle to find ways to easily set up systems to monetize their APIs. Some are simple but not customizable, some are complex and require massive engineering effort to actually get it all running. To make things easier, Moesif created a feature a few months ago called Billing Meters which gives massive customizability but with a minimal amount of code and engineering effort.

Elastic Beanstalk makes getting started with Amazon Web Services (AWS) much easier. In this article, Farhan Hasin Chowdhury steps through how to deploy a Laravel app to Elastic Beanstalk.

WSO2 Identity Server provides many identity management workflows and password management workflows out of the box, e.g., self-registration, user invitations, password recovery, etc. However, it is not unusual to come across a situation where the workflow capabilities provided out of the box in the product, is not sufficient to fulfill your business requirement.

Photo by Micah Williams on Unsplash This article discusses a new feature which will be released for the public distribution of WSO2 Identity Server 5.12.0. This feature was developed to overcome the following scenario: You can refer to the following diagram for a deeper understanding of the above flow. This scenario can be experienced by anyone. As such, we introduced a new way to handle this scenario (as shown below) for the notification based password recovery flow.

In the previous articles, we learned how to deploy the Flutter desktop for Linux, the web app with Firebase, and S3. And in this tutorial, I will show you how to build and package a Flutter Linux Desktop app with Bitrise.

Web applications are necessary to enhance the visibility of a business organization and help them achieve better ROI. Therefore, firms need to choose the right web development language to get the best results. Node.js has emerged as a leading programming language for developing web applications. But in hindsight, there are some complications that developers face with Node.js app maintenance.

At times, Node.js can feel like a black box. Shifting to an asynchronous programming model changes how developers are required to handle and interpret existing data. There are many solutions out there to help the users gain more visibility; however, it has been proved that all those solutions out there to capture such critical information come with a high toll on the performance of every application implementing them.

In software development, the monolith architecture has successfully seen the design and development of applications. Most unicorn companies in recent years started their journey using monolithic architecture. However, we’ve seen a significant change and adaptation of microservice architecture patterns in the last few years. The popularity of designing and developing applications using microservices is mainly because of scalability and increased productivity for larger teams and companies.

Test-driven development, or TDD, is a testing method where you first convert the feature requirements to tests and then write code to make the tests pass. In this article, we take an objective look at test-driven development, its benefits, downsides, and best use cases.

If you have ever spent time building an Object-Oriented Program (OOP), you have likely used polymorphism in your application or, at the very least, heard the term. It’s the kind of word you’d expect to see in a science or computer science textbook. You may have spent time researching polymorphism and even implemented it in your application without clearly understanding the concept. This article will give you a greater understanding of polymorphism, specifically in Ruby on Rails.

Deprecating old code and replacing it with new and improved APIs is an established process in software development. In the core of PHP APIs are provided to trigger and to get notified of deprecations. As a PHP application developer you can then hook into all triggered deprecations using a user defined error handler. You can use this API to collect deprecations and fix them.

Developers update and augment their stacks all the time. No configuration is permanent, and a new tool can enter the picture at any given moment. The reasons vary, but new applications’ addition to the mix can upset your integrations from time to time, particularly if you’re adding security tools. Rookout is always aiming to support a fluid experience, and that’s what is behind our latest updates to our Gitlab integration.

While initially conceived as a tool for data exploration (much like Jupyter for Python), Livebook has deservedly become a sensation in the Elixir community. It has been fantastic to see all the wonderful ways teams are leveraging Livebook for a range of different use cases. We have seen Livebooks being used to: Livebooks have also been used as the default REPL interface for project development.

Try-catch blocks in PHP can be nested up to any desired levels and are handled in reverse order of appearance i.e. innermost exceptions are handled first. Nested blocks can be useful in case a block of code causes an exception, which can be handled within that block and program execution can continue in the outer block. They can also be useful in case the handling of an exception causes another exception.

The Javascript ReferenceError occurs when referencing a variable that does not exist or has not yet been initialized in the current scope. Reference errors in Javascript are of a few different types, with variations of each, that may get triggered in code. Some of these are discussed below.

A hands-on guide explains how to build and package Flutter Linux Desktop apps with Bitrise so you can reach more users in browsers with the same experience as on desktop devices.

Supply chain shocks have wracked organizations across the globe, and healthcare and life sciences companies aren’t immune. News headlines were focused on personal protective equipment (PPE) shortages early in the pandemic, and more recently hospitals have faced shortages of much-needed medical supplies like crutches, gauze, and medications.

The threats of hackers and data theft grows by the day and even smaller eCommerce sites are not safe from attack. Security should be a top priority for any eCommerce website owner, no matter how big or small their site may be. Fortunately, there are plenty of great security plugins available to help keep your site safe and secure. In this article, we will take a look at 18 of the best plugins for keeping your eCommerce site secure.

Do you need to process a lot of data in real time? Event streaming is a pattern that could help. David Sanchez walks us through how to do event streaming in Rails with Apache Kafka, the popular open-source event streaming platform.

Our everyday digital experiences are in the midst of a revolution. Customers increasingly expect their online experiences to be interactive, immersive, and realtime by default. The need to satisfy user expectations is driving the exponential growth of event-driven architectures in organizations of all shapes and sizes. And by enabling users to have realtime experiences whenever and wherever they want, 24/7, mobile drives this change further and faster.

In the Ruby programming language, exceptions are a common feature. About 30 different exception subclasses are defined in the Ruby standard library, some of which have their subclasses. Ruby's exception mechanism is quite strong, yet it is frequently misused. This article will go over how to use rescue exceptions in ruby and how to handle them.

Do you want to learn Python as your first programming language? Then you’ve made a great choice. Python is a popular, general-purpose programming language that can be used for a whole host of applications. But, it’s not without its challenges. To find out more about these challenges and how to overcome them, keep reading …

Photo by Tima Miroshnichenko from Pexels

What if you could write sloppy code and have Ruby fix it for you automatically? With RuboCop, you can! Of course, linters and auto-formatters have other benefits, even if your code is pristine. Join Ayooluwa Isaiah for a tour of RuboCop.

ConfigCat’s feature flag and configuration management service is now integrated with Bitrise, and their Verified Step can help you test in production, fix bugs easier, and deploy with more security.

Most programming languages are built on procedural programming, but there is this niche of dialects built for “functional programming,” where code classes are dynamically created based on the rules in the functions you write. If you could put languages on a scale of most procedural to most functional, you’d find Clojure sitting at the edge of the latter. What is Clojure? Who uses Clojure? What’s the best Clojure use case?

Bring your people, processes, and data together seamlessly and rapidly launch mobile-ready applications with the Appian Low-Code Platform. And with Appian Academy, you’ll feel empowered to get the most out of your investment. The Appian Academy helps get technical and non-technical users up to speed quickly, incorporate Appian into business operations, and recognize future opportunities with the right low-code mindset.

Are you someone who already has a legacy system in place and wants to migrate to a modern authentication system with Identity and Access Management (IAM) features? The first thing you need to consider is how you can use the existing legacy user store with this new system. Keep in mind that if the legacy user store uses an old security mechanism to store your data, we would recommend that you migrate to the WSO2 JDBC user store format or Active Directory (AD).

Jason Cumberland, CPO and co-founder of API and data monetization platform HyperCurrent, contributed to this post. In our last article on how to get started with API monetization, we laid out how to build your API monetization strategy and avoid common pitfalls that occur when trying to get to your first minimum viable product release.

Bitrise's Developer Relations team strives to make the lives of the mobile development community easier. In enabling mobile developers, they have developed a variety of resources… but that is just the beginning!

In this blog post I want to go over some of the software I use alongside my IDE/version control tools during my day-to-day work. These tools allow me to cut down on wasted time spent doing things inefficiently, track my work, take notes, and generally make my life easier. I’ve also reached out to Damien, a local developer friend who has provided me examples of the tools they use as a front end developer.

Ask any software engineer to review key portions of production code, and inevitably, they will point out three things that need to be refactored. So why does so much bad, brittle, or misunderstood code remain running in production? The answer is simple: engineers are afraid to touch it. Refactoring tasks get identified and added to the backlog, but rarely make it into the current sprint. There are numerous reasons for this.

Here are some of the takeaways and learnings from Google I/O 2022!

Package managers are software tools that help programmers and developers to install, update and uninstall packages of code, libraries, or other software. There are many package managers for a variety of programming languages such as JavaScript's NPM and Ruby's GEM. Package managers typically use metadata to determine which versions of a package are available and the dependencies of each version package managers vary in the type of automated software they install and update.

A hands-on guide explains how to build, deploy, and host Flutter Web apps on Amazon S3 so you can reach more users in browsers with the same experience as on mobile devices.

Let me start by asking a question. Would you prefer to write reams of code to build your website, blog, or web app, or would you rather use a tool that did all the work for you? If you are a software developer who wants to practice application development, you may opt to write the code and build it yourself.

If you define the same method on a class, a subclass, and a mixin, which one gets called first? Join Abiodun Olowode in an exploration of Ruby's object model!

We’ve just updated our Linux environments from vCPU 2-4-8 machines to vCPU 4-8-16 respectively but the credit multipliers remain the same. This price/performance boost means accelerated build times, and shorter release cycles so Android teams can ship quality apps, faster.

The Javascript SyntaxError occurs when trying to interpret code that is not syntactically valid. It is thrown when the Javascript engine comes across tokens or token order that does not conform to Javascript syntax when parsing code.

Python is one of the hottest programming languages in the world right now. According to StackOverflow’s Developer Survey 2021, Python is the third most popular programming language. It is primarily due to its easy-going syntax coupled with powerful dynamic typing and binding. In this article, we will focus on building efficient and scalable applications in Python using popular design patterns. Design patterns are standards or conventions used to solve commonly occurring problems.

If you have ever been interested in Web Development then chances are you have heard of JavaScript. JavaScript is an object-oriented programming language. It is used by developers to make the client-side (front end) of web pages dynamic and interactive. It is also used alongside HTML and CSS to make websites and web applications. The market for application development in 2022 is huge.

You are authorized to access this article! Learn how to secure your Laravel application with simple roles and permissions.

In our last development cycle, we spent time improving our table performance in AppSignal. As customers stay around for longer, data starts piling up. A view with just 10 items in the beginning gathers hundreds of items, and keeps growing. Besides filtering data in the front-end to reduce the returned data, we wanted to ensure our data could keep growing without timeouts in our GraphQL API or slow-loading pages in our app.

Have you ever found passwords to be extremely inconvenient? In a developing world, you've been using older technology?

In this tutorial, you will learn how to use the Manage iOS Code Signing Step with a Flutter app to manage your code signing assets, archives, and export an.ipa.

null is a reserved word (keyword) in Java for literal values. It is a literal similar to the true and false. In Java, null is a keyword much like the other keywords public, static or final. It is just a value that shows that the object is referring to nothing. The invention of the word “null” originated to denote the absence of something. For example, the absence of the user, a resource, or anything.

During Shopware Community Unconference 2022, we heard a lot about an internal performance week at Shopware, where they took tie to optimize different parts of the core of the Shopware platform. These were mostly performance problems that also affect our customers. Naturally, we are super excited about them their release in version 6.4.11. In this blog post we will look at one improvement to category navigation loading.

In this post, we will explore how event-driven architecture can make your app more responsive for users and decouple your modules for a better developer experience. We will also look at several methods of implementing event-driven architecture with Elixir. Elixir is particularly good for this because of the advanced and concise message-passing APIs that it offers and BEAM's outstanding support for concurrency. But first: what is event-driven architecture, exactly?

Sometimes an application needs more than Node.js to develop and bootstrap itself. Maybe the project needs some automation from a different programming language than JavaScript; even in that scenario, Node.js can run those required tasks; with that, your whole application could be easier to maintain and won’t have a lot of technologies mixed in the same project.

At Moesif, we’ve put a lot of work into improving viewing details and trends for specific users and companies. This includes our recent addition of adding profile dashboards to add individual and reusable charts to user and company profiles Now, we’ve added even further functionality by allowing users to customize what each individual user and companies profile view looks like.

Read our hands-on guide that explains how to build, deploy, and host Flutter Web apps on Firebase Hosting so you can reach more users in browsers with the same experience as on mobile devices.

This is the second installment of the series. As a result, if you haven't yet completed Part 01 of the series, it is highly urged that you do so first. According to the official website, Asgardeo is an IDaaS that allows developers to create seamless login experiences in minutes. Let's concentrate on the performance optimization approaches utilized in react and webpack in this article.

Have you ever wanted to accept payments in Rails? With Stripe Checkout, it's never been easier. Jeffrey Morhous shows us how.

Software development gets complex if you want your applications to target multiple operating systems, including but not limited to Windows, Linux, macOS, Android, iOS, HoloLens, desktop apps, and web apps. Enter the robust and feature-rich.NET platform to write applications rapidly for use across multiple systems. It also contains many libraries that allow developers to reuse common functionalities. It isn’t itself a language, though many describe it that way.

Recent events over the past two years have shown that delivering enhanced digital experiences is critical for business success. The ability to innovate fast is now the differentiating factor that determines whether a business is a leader or a follower.

HTTP Keep-Alive is a feature of web servers that allows clients to keep connections open. It's also called "persistent connections." The idea behind HTTP Keep-Alive is to prevent the connection from timing out and closing, which would require the client to reconnect. This saves time for both users and the website’s server. HTTP/1.1 is designed to allow keep-alive connections by default, but HTTP/1.0 is not.

Over the last ten years, APIs have grown in popularity and utilization. They've evolved into critical components of application infrastructure, and as businesses continue to use and build them, good API architecture will become increasingly important. A smart API design helps performance and the overall developer experience, whether they're public or internal. The most common APIs employ HTTP requests to access and use data and follow a RESTful architecture.

This post explains the approaches we used to improve performance in our application. This knowledge will also assist you in applying these strategies to your projects as required. Please keep in mind that this post series focuses solely on the front end. According to the official website, Asgardeo is an IDaaS that allows developers to create seamless login experiences in minutes.

Consumer onboarding is one of the, if not the most, important functions of a customer identity and access management (CIAM) solution. An overly complicated onboarding workflow significantly detracts from the consumer experience. Providing an effective, engaging and efficient onboarding workflow without compromising security has always been a challenge among security and risk professionals.

In part 1 of this series, we introduced the three most common abstract workflows based on the method in which they are initiated. But what makes an abstract workflow a concrete workflow are the different types of components that make up the workflow. In this article, we will take a look at these components.

You've probably used `Rails.cache` to read, write, and fetch cached data in Rails—but did you know you can also work with counters? In this series, Jonathan Miles introduces us to some of the lesser-known tools hidden in your Rails codebase.

The UnknownHostException is an exception in Java that is thrown to indicate that the IP address of a host could not be determined. Since the UnknownHostException is a checked exception, it either needs to be thrown or surrounded by a try-catch block in code.

The SocketException is an exception in Java that is thrown to indicate that an error was encountered while creating or accessing a Socket. Since the SocketException is a checked exception, it either needs to be thrown or surrounded by a try-catch block in code.

There are a variety of technology stacks for Artificial intelligence (AI), Machine learning (ML) and data analytics applications. However, the ideal programming language for AI must be powerful, scalable and readable. All three conditions are met by the Python programming language. With outstanding libraries, tools and frameworks for AI, ML and data analytics, Python has proven success leveraging all three technologies.

Rails' batteries-included approach is one of its greatest assets. No other framework makes it so effortless to get your application off the ground quickly, at least partially due to Rails' generators. If you've used Rails for any amount of time, you have come across generators. Need to create a new application? Run rails new. Need to scaffold a bunch of new models and views? Run rails generate scaffold. There are dozens more available to help you get started rapidly or streamline your workflow.

The reality is.... Mobile testing is hard! But with the right planning and forethought, you can avoid common pitfalls that can undermine your well-intentioned efforts. Read on to discover how to avoid our top four testing mistakes.

In today's digital landscapes, businesses are constantly looking for strategies to differentiate themselves from their competitors. Web and mobile applications have become a must-have and effective marketing tool for any successful organization. User-friendly applications are built using frameworks. Angular and AngularJS are the most popular front-end web development frameworks among the greatest JavaScript frameworks.

In the last part of our Alexa for Bitrise tutorial series, you will learn how to publish Alexa Skills to Alexa for Business and use it with AWS Organizations. Let's dive in!

Recent years have brought no shortage of change to the insurance industry. Among those changes is a rise in governance, risk, and compliance (GRC) requirements. Effective in May 2018, the General Data Protection Regulation (GDPR) became the first major regulation to focus on protecting consumer data. Its implementation coupled with a global pandemic has kickstarted a rush to enact more laws surrounding data privacy.

Race conditions are hard to debug—especially when you don't know it's a race condition! This article looks at some common race conditions and the best solutions for handling each one.

The recently released 2.0.7 version for the “Deploy to Bitrise.io - Apps, Logs, Artifacts” Step switched storing artifacts from AWS S3 to Google Cloud Storage, which means improvements in speed, especially for testing and deployment.

API providers need to observe their APIs to get meaningful data about whether and how they are consumed in practice. API observability is a form of monitoring that passively logs API traffic to an observability service. Different from traditional API monitoring, with API observability you: Monitor interactions to improve developer experience Understand how customers use your API Troubleshoot your API Observing REST APIs is well understood and supported, but not every API is a REST API.