Trending Archives - XI Vero https://www.xivero.com Software Conference Fri, 23 Jun 2023 14:48:43 +0000 en-US hourly 1 https://wordpress.org/?v=5.9 https://www.xivero.com/wp-content/uploads/2022/02/cropped-conference-32x32.png Trending Archives - XI Vero https://www.xivero.com 32 32 Streaming App Development: All You Should Know About in 2023 https://www.xivero.com/streaming-app-development-all-you-should-know-about-in-2023/ https://www.xivero.com/streaming-app-development-all-you-should-know-about-in-2023/#respond Wed, 21 Jun 2023 14:10:58 +0000 https://www.xivero.com/?p=29845 Musical platforms’ appearance makes audio accessible for millions of users everywhere they want it and opens the way for the talented youth to show themselves to the entire world. Digital products like Spotify offer to do it conveniently and without any delays.   You can create a Spotify-similar streaming application, and this essay will help […]

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Musical platforms’ appearance makes audio accessible for millions of users everywhere they want it and opens the way for the talented youth to show themselves to the entire world. Digital products like Spotify offer to do it conveniently and without any delays.

 

You can create a Spotify-similar streaming application, and this essay will help you to do it most efficiently. Here, we’ve gathered all the essentials you should know to develop a qualitative streaming solution that will be delightful for users, profitable and satisfying for your business needs.

What is Spotify? The Essentials to Consider

Before you start developing a streaming solution like Spotify, you need to find out what this service is, its operating peculiarities, and other crucial information. So, let’s start discovering. 

 

Spotify is a digital service for streaming music. It allows millions of customers to listen to favorite tracks and podcasts or look through video clips of well-known singers. Spotify can function in view of a website or a mobile app, depending on the user’s choice. This service utilizing is free of charge; however, some premium functionality enhances the user experience and can be obtained by paying for Spotify Premium. 

 

What do users get with a Spotify Premium subscription? These are the following commodities as:

 

  • Offline listening
  • Switching tracks without any advertisements
  • Enhanced quality of the audio played
  • Opportunity to use the subscription together with five friends, etc.

 

Spotify website’s view

 

Now, we’ll look at how this audio-streaming giant functions. You can start working with Spotify in two ways:

 

  • Register your user account on the Spotify website (or download a free app from a marketplace). The social login through Facebook is also available, giving you an opportunity to find your Facebook friends, follow them and look at what track they like.
  • Choose a kind of subscription (Spotify Premium, for example). This selection will help you connect with more devices and make your Spotify use more flexible and advanced. 

 

Spotify offers music for listening quickly and without any delays. How does it happen? A peer-to-peer (P2P) network streamlines the process turning the server users into microservers for the data exchange. This way, when you start playing a chosen song or a podcast, Spotify doesn’t apply the required data to a server, but retrieves it fragmentally from various users’ devices. Such a process can be performed even if people are offline. 

 

All the content on Spotify is played legally. It means the service owners got the license — the permission to publicly perform the audio tracks (or even video clips) for their customers. Planning the Spotify-like app creation you should care about this question. 

 

What organization should you apply to for having audio license? It depends on where your target audience is located: thus, if you’re aimed at European listeners, you can talk to European Stage Authors and composers. In case you plan to render your services to American market, The Broadcast  Music Incorporated is the organization you need to ask for licensing.

 

It should also be mentioned that Spotify watches your listening habits. It means if you save the first track of Celine Dion to your album, the system automatically prepares the next one. Spotify’s smart engine for quick audio streaming allows you to switch your favorite music without delays and even change the typical order of playing tracks. 

Developing an App Like Spotify: Where to Start?

Spotify became a go-to service for millions of music listeners around the world. According to a Forbes article, Spotify remains the biggest streaming server in the world at the beginning of 2022. Its revenue is more than $3 billion, as Macrotrends proves in their report. 

 

It’s not surprising that the entrepreneurs want to replicate Spotify’s commercial success and create a solution similar to it. Let’s find out what is required to build a Spotify-like streaming service. 

Choose a software development team to work with

Creating a solution like Spotify is a complex process, so you need to choose a team of qualified specialists in order to develop a top-class software. There are two effective hiring options you can choose from:

 

In-house team. You will be able to find and gather the local software experts under the roof of your office. Knowing how to create an audio and video streaming website (or application), they will build and deliver a qualitative digital product for your business purposes. However, you can choose this recruiting option if you have enough experience, time and money to look for local specialists, check their skills and employ them.

 

Collaboration with an outsourcing software development vendor. This option will be perfect for your business if you need to quickly find a sufficient way to create an audio streaming app with advantageous quality to price ratio. All you need is to choose a software development provider to collaborate with and start contacting them. 

How audio streaming app is created in outsourcing company: the typical development stages

After you’ve contacted an outsourcing software development vendor, told them the details of your project, and signed necessary documents for the upcoming collaboration, your software will pass the stages described below. 

 

The discovery stage is a start point for your streaming product to be properly prepared. This is the time for the specialists to enhance the quality of the product and make a detailed project specification defining functionality the app should contain, the third-party services to include, and other. Moreover, the composition of a future team to work on your project is decided on this stage. 

 

At this time, the UI/UX designers also start creating the upcoming app interface. This process begins from building a design concept, as well as the User Experience (UX) map. You can also offer them your own design sketches, if you have some. It should also be considered that the future streaming app design is tested for several times by the QA engineers who ensure that it’s easy to navigate and customer-friendly to offer you a flawless user experience.

 

After the designers finish the interface creation, the developers can start bringing the streaming solution’s functionality into life. Let’s talk below about how it happens. 

 

Spotify’s screen for new account registration as an example for your streaming app design

Product development and Quality Assurance. The software development engineers now need to implement the pre-defined list of features for your streaming solution by encoding them. All the process is controlled by a Project Manager (PM) and divided into sprints. These are short time periods (about 2-3 weeks) which purpose is to create a specific part of functionality or a full-fledged software.

QA team works together with the developers checking the developed functionality for bugs. In case the bugs are found, QA engineers make bug reports for the developers to deal with hotfixes. One of the QA team task is also to concentrate on the possible scenarios of the non-standard user behavior and eliminate the issues that can arise.

 

Software release means the streaming solution is published in the marketplaces (if it is a mobile app), or moved to a live server (if it’s a website). It is done after numerous tests from QA. 

 

After-development activities. The collaboration with an outsourcing IT provider is not ended after your audio streaming app is developed and released. The provider’s specialists continue to check the created solution for bugs, and add new features to it according to the early users’ feedback.

 

Thus, you can see that the outsourcing vendor will be your reliable assistant in solving the question of how to create an app for your business. They can carefully guide you through the development flow avoiding pitfalls (you’ll be able to fully participate the process) and delivering you a stable, effective and attractive Spotify-like solution. 

How Much the Spotify-Like App Development Costs?

The development price of a Spotify-similar solution is also one of the essential for the entrepreneurs. It ranges from $70,000 to $105,000, and the price growth depends on different factors. Some of them are the following:

 

  • App operating system choice (e.g., iOS or Android)
  • Solution’s security issues
  • The size of the software
  • Tech stack to be used during the project
  • The UI/UX design
  • The core and the advanced app features, etc.

Core features to be included in your audio streaming app functionality list

 

Cooperating with an outsourcing software development vendor, you can also have rough and detailed cost estimates prepared by experts. These estimates will help you wisely and effectively plan your expenditures. Moreover, you’ll always be able to apply to vendor’s specialists for consultation and advice, as well as promptly obtain it. 

Summing Up

As you can see, the creation of a music streaming solution like Spotify is a complex process, requiring a lot of knowledge, resources, and time. However, the skilled outsourcing software development company can assist you in such a development. The vendor’s professionals will be your trustworthy helpers in building of a streaming solution, which will fully fit your company needs, and attract new users for further business development.

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Building A Mobile Solution For Fitness: Common App Types, Development Price, and More https://www.xivero.com/building-a-mobile-solution-for-fitness-common-app-types-development-price-and-more/ https://www.xivero.com/building-a-mobile-solution-for-fitness-common-app-types-development-price-and-more/#respond Wed, 21 Jun 2023 14:08:36 +0000 https://www.xivero.com/?p=29842 People frequently record their regular training activities to live a physically healthy life and move forward in it. Workout mobile solutions, which are now fairly widespread, must do this. As a result, the market for fitness software will reach $13 billion by 2025, as to the most recent findings. Predicting how much does it cost […]

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People frequently record their regular training activities to live a physically healthy life and move forward in it. Workout mobile solutions, which are now fairly widespread, must do this. As a result, the market for fitness software will reach $13 billion by 2025, as to the most recent findings.

Predicting how much does it cost to make a fitness app is challenging. It’s important to remember that several factors are involved in creating a fitness app.

Fitness Applications For Portable Gadgets: Essence and Common Types

Before discussing the development flow and its prices, you need to consider the definition of the smartphone solution you will develop. So, a digital fitness solution is an IT product that can be installed on any portable gadget to track and record your physical activity, measuring your heart rate and other health indicators.

Such digital products come in various types and differ by increasing complexity features, which affect the development cost. However, these components unquestionably provide most of the current development expenditures for fitness applications.

Let’s look at the common types of fitness apps and their finest examples represented on the market.

Fitness training digital instructors are intended to assist you in creating your healthy eating and exercising regimen and a training routine fitting you the best.

Solutions for monitoring physical activity will help you to count the steps or cycling distance passed and even record your routing.

Nutrition and dieting solutions will be perfect for monitoring the calories consumed to help you analyze and optimize your daily ratio.

Smartphone solutions for daily workouts help the users choose the most suitable workout program, monitor its performance, and inform the customers about the people’s health conditions or calories burnt during the training. Moreover, the workout smartphone solutions collect data from wearable devices.

After we discussed the fundamentals everybody should know about building smartphone solutions for fitness, let’s overview the example applications offered by the fitness market leaders. Then, looking at our TOP-5 fitness and digital workout products, you may analyze them and conclude whether to implement useful features into your newly developed application.

So, the apps you should pay attention to are the following:

Down Dog application for smartphones is a solution for yoga amateurs, which helps them choose the exercise to perform according to its complexity, duration, and preparation level. Then, after the training session is created, the customer can complete a video lesson with a skilled yoga coach.

Runtastic allows people to train the chosen muscle groups with a specific training program intended for these muscles.

The Nike training club contains individual guidance and a physical training timetable to help you achieve the required results in the frantic life rhythm. A personal trainer from Nike will assist you in compliance with training timetables.

Lifesum provides users with a specific diet chosen following their lifestyle peculiarities and nutrition preferences. Moreover, the offered dishes are given along with their recipes for users to prepare efficiently.

Samsung Health cares about the health condition of women, allowing them to monitor their sleep, select various training systems, and do other things related to the said ones.

Fitness App Development: How Much Does The Smartphone Solution Cost?

To save money on the concept and get earlier user input that will help you add the proper functionality, it is advisable to start with building a Minimum Viable Product for a workout smartphone solution. MVP will also allow potential stakeholders to make a profitable investment and influence further digital product development.

What things have a direct impact on the final fitness solution price? First, the price depends on the number of features added and the services your tech partner may render (e.g., QA services, UI/UX interface creation, DevOps, and so on).

Fitness app interface example

The selected platform also influences the final fitness solution price. Due to using two different software languages, parallel development for Android and iOS demands a doubled cost. Flutter app development can save your costs by half, but remember that complex digital product creation might not be a good fit in particular situations.

The tech stack you select will determine the price of developing a fitness app. If you decide to use Android, the Kotlin programming language and the network are required. Swift and Alamofire are the appropriate choices for iOS.

QA testing should be performed to check the apps for bugs and fix them, and this rule applies to all technological projects. The cost of designing a fitness app depends on how complex the application is.

A region is one of the last but not the least influencing the price. Apply to an outsourcing IT corporation from Central Europe for help with fitness app creation and ask them about the rough software development cost. They may offer you their calculations equal to about $88,250. Such a sum of funds is approximate to build an app for Android- or iOS-based portable gadgets. But if you need the digital product for both operating systems, your budget may be about $150,000.

What Drives the Cost of Developing a Fitness App?

Let’s examine the essential features that any fitness smartphone solution needs to include. It is required since the features constantly depend on the type of workout app and affect the development time. Thus, your development staff will need more time as features get more complex.

The signup and log-in integrated with Google or social networks will be easy for customers while performing an app registration. The users should also be provided with a signup by email/mobile number as well as the password recovery tools to have an opportunity to quickly renew access to their account in your fitness smartphone solution.

A list of available training programs (e.g., yoga, warming up, or cardio according to the customers’ preferences) should contain video instruction on its performance.

Nutrition functionality should contain a list of healthy products and an opportunity to add recipes containing the said food.

Customer personal account creation will let the users record their physical training goals, growth, or weight. To constantly access their account, the customers should be able to change their password. Moreover, they should be able to add their profile photos.

The fitness app payments should be provided most straightforwardly and securely. So, transferring money for the prepared physical training programs or dietic nutrition should be performed through a payment system like Stripe or PayPal.

Push messaging will be the users’ reliable helper in forming healthy habits like drinking water or putting down their nutrition regimen.

The fitness smartphone solution’s interface should be user-friendly and intuitive. To begin with, the designers make the interface first for one of the mobile platforms and then adapt it for another.

How to Conduct Fitness Digital Product Development?

Success typically comes after the hard work is done. The same can be said about fitness app development. That’s why you should follow the below steps to properly prepare for developing a robust and sustainable smartphone app for fitness needs, which will also be competitive and profitable.

Conduct market research, gathering data concerning your upcoming solution, customer demands, future rivals you may compete with, and so on. You should also think out a feature set.

You can employ an in-house team to build your smartphone solution for fitness workouts. If this option is costly for you, or you need more time for hiring, consider outsourcing IT-building alternatives. This way, you may locate qualified professionals to produce high-quality products and save money.

The discovery phase implies analyzing requirements gathered at this stage, creating wireframes, etc. In addition, the ultimate development time and cost for fitness apps should also be evaluated. To pass this phase, you may apply for help from a skilled outsourcing mobile app development company whose specialists will assist you in all operations.

Developing the app starts after the design is prepared. It is advisable to divide the project development into many sprints to make it more structured. During this time, developers implement the required functionality, and QA engineers test the software after each sprint.

Summing up

Developing a smartphone solution for fitness workouts requires doing some homework, such as deepening into the subject of such apps, studying the market peculiarities, and many other details. However, the skilled outsourcing smartphone products development company is eager to help you. The professionals will answer all the difficult questions from your side and assist you in building a seamless, user-friendly, and cutting-edge product that will bring income and be in demand.

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Exploring the Possibilities of the Metaverse: What Does It Mean for Our Future? https://www.xivero.com/exploring-the-possibilities-of-the-metaverse-what-does-it-mean-for-our-future/ https://www.xivero.com/exploring-the-possibilities-of-the-metaverse-what-does-it-mean-for-our-future/#respond Fri, 30 Dec 2022 11:11:47 +0000 https://www.xivero.com/?p=29831 The concept of the metaverse has been gaining increased attention in recent years, as the possibilities of its potential applications have become more widely understood. The metaverse is an expansive, interconnected virtual world that exists outside of traditional physical boundaries. It is a place where people can interact, create, and explore without limits, where the […]

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The concept of the metaverse has been gaining increased attention in recent years, as the possibilities of its potential applications have become more widely understood. The metaverse is an expansive, interconnected virtual world that exists outside of traditional physical boundaries. It is a place where people can interact, create, and explore without limits, where the boundaries of reality and fantasy can be blurred. In this way, the metaverse enables us to expand our imaginations and push the boundaries of what is possible. It has the potential to create a more connected world, one in which physical distance is no longer a barrier to communication and collaboration. As we explore the possibilities of the metaverse, it is important to consider how it can shape our future and what implications it may have for society.

What is the metaverse?

The term “metaverse” was first used in a paper that was published in 1991 by a group of scientists interested in virtual reality. They used the term as a shorthand for “Metagraphics,” which means “to be beyond graphics.” In this paper, the authors describe the metaverse as a “global artificial reality” that exists as “a consensual hallucination,” created by the convergence of computer networks and the human imagination. Since then, the term has become increasingly common, and the concept behind it has evolved. Today, the metaverse is generally understood to be an expansive, interconnected virtual world that exists outside of traditional physical boundaries. It is a place where people can interact, create, and explore without limits, where the boundaries of reality and fantasy can be blurred. The metaverse is primarily digital; it exists in a virtual space, separate from the physical world we inhabit. The virtual world allows user interactions, creations, and experiences that would not be possible in the real world. It is a space where the rules of reality do not apply, where imagination and creativity can be explored and shared in new ways.

Benefits of the metaverse

The benefits of the metaverse are vast, and there is potential for the technology to have a transformative impact on our world. The benefits include: – Increased connectivity – The metaverse can foster an environment of increased connectivity, enabling people to connect and collaborate regardless of physical distance. This could have potential applications in the business world, where virtual meetings could replace costly and time-consuming travel. – Enhanced creativity – The virtual nature of the metaverse provides a space where imagination can be explored freely, enabling a heightened sense of creativity. This can lead to the creation of new and unexpected art and ideas that might not be possible in the real world. – Enhanced problem-solving skills – Virtual simulations can be used to train in a risk-free environment, with the opportunity to learn from mistakes and make adjustments as needed. This can be applied to a wide range of fields, including military training, health care, and engineering. – Social benefits – Virtual spaces can allow individuals to explore identities and connect with others who might not be able to do so in the physical world. This has the potential to reduce social isolation, provide a safe environment for experimentation, and create a more inclusive online space.

Potential applications of the metaverse

As a result of the benefits of the metaverse, there are a number of potential applications that have been discussed in recent years. While some of these potential uses are more likely than others, the virtual reality technology is only just beginning to emerge. With time, we will likely see the metaverse applied in new and innovative ways. – Collaborative design – Architecture, construction, and engineering firms could use the metaverse to collaborate on design projects, enabling teams to work together regardless of location. This could potentially result in more sustainable buildings, as well as reduced costs. – Education – The metaverse could be used in education to enhance the learning process, helping to boost creativity and problem-solving skills. This could apply to a wide range of subjects, including the arts, sciences, and humanities. – Health care – The health care industry could use the metaverse to create immersive training environments that allow trainees to practice with virtual patients. This has the potential to reduce the risk of mistakes and improve patient outcomes. – Immersive journalism – Journalists could create a virtual environment to re-create events or places in a way that is both engaging and factually accurate. This could be applied to a wide range of topics, including political events, natural disasters, and historical moments.

Social implications of the metaverse

The social implications of the metaverse are vast, and they are potentially both positive and negative. The potential of the metaverse to foster creativity, collaboration, and increased connectivity is great. However, there is also potential for misuse of the technology, and for it to create a more fragmented society. – Potential for increased isolation – While the ability to connect with others in the metaverse can be empowering, it also has the potential to foster isolation. This can be particularly dangerous for individuals with mental health issues, who may find virtual communication easier than real-life interactions. – Exploring darker sides of human nature – The virtual reality technology and the ability to create new identities in the metaverse has the potential to allow users to explore darker sides of human nature, including violent fantasies and sexual desires. This has the potential to create a more toxic social environment, where hate speech and bullying could be more common. – Privacy implications – As the metaverse becomes more popular, it could have implications for privacy, as more and more of our data will be stored in the virtual space. This data can be used for a variety of purposes, and it is important to be aware of the ways in which it might be used.

How the metaverse can shape the future

The virtual reality technology has the potential to shape the future in significant ways. With the development of advanced VR technology, we could see the creation of a completely immersive virtual world, where the boundaries between reality and imagination are blurred. This could have a transformative effect on our culture, enabling us to explore new ideas, create new art forms, and experience new ways of being. The technology also has the potential to transform how we live and work, enabling new kinds of interactions and collaborations, and reducing travel costs in the process. It also has the potential to transform education, helping to engage young people and build skills needed for the future. The virtual reality technology has the potential to shape the future by providing new ways to interact, new ways to collaborate, and new ways to experience the world. It may also enable us to explore new ideas and create new art forms. It could transform how we live and work, and transform education, as well.

Challenges the metaverse presents

As with any emerging technology, there are also potential challenges associated with the virtual reality technology. Some of these challenges include: – Privacy concerns – As the virtual reality technology becomes more widespread, there is potential for issues related to privacy, including data breaches and breaches of privacy. This can affect not only individuals, but also organizations that collect user data. – Health and safety concerns – As with any technology, there are concerns related to health and safety. Virtual reality technology has the potential to negatively impact human health, and is not recommended for children under 13 years old. – Lack of social interaction – The virtual reality technology has the potential to reduce social interaction, resulting in a more fragmented society. This can create both positive and negative effects, depending on the circumstances. – Lack of realism – Virtual reality technology can also have the potential to lack realism. This can result in a flattened, unengaging experience that does not foster creativity.

Conclusion

The metaverse is an expansive, interconnected virtual world that exists outside of physical reality. It has the potential to foster creativity, enhance collaboration, and foster connectivity, while also allowing us to explore darker sides of our identities. The technology also presents challenges, including privacy concerns, health and safety concerns, a lack of social interaction, and a lack of realism. As the technology develops, it will be important to consider how it can shape our future and what implications it may have for society.

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Architecture in EdTech and CI / CD collection of custom content https://www.xivero.com/architecture-in-edtech-and-ci-cd-collection-of-custom-content/ https://www.xivero.com/architecture-in-edtech-and-ci-cd-collection-of-custom-content/#respond Wed, 13 Oct 2021 18:42:14 +0000 https://www.devsnews.com/wp/techbuzz/?p=66 Complete plan of 360* Solution architecture, its connection to Enterprise and Application (System Design) architecture and product solutions, data models and processes, SDLC and DevOps.

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  • Complete plan of 360* Solution architecture, its connection to Enterprise and Application (System Design) architecture and product solutions, data models and processes, SDLC and DevOps.
  • Agile architecture with a minimum of artifacts (for the presentation we will have to make those which were not made for production).
  • Techstek and the reasons. Frontend and backend microservices, tags, integrations. Development and production. From docker compose to k8s and hybridization (video processing and storage in premium – on premise, audio, logics and business data in Azure).
  • Pipeline with LaTeX, PDF, PNG, UML (PlantUML, Visual Paradigm), voice-activated support.
  • Distributed NFR for each microserver.
  • Solutions.
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    Fintech system in SaaS for 2000+ microservices https://www.xivero.com/fintech-system-in-saas-for-2000-microservices/ https://www.xivero.com/fintech-system-in-saas-for-2000-microservices/#respond Wed, 01 Sep 2021 18:48:07 +0000 https://www.devsnews.com/wp/techbuzz/?p=64 Let's talk about architecture in BigTech, technology selection and accepted "rules".
    We will touch on the topic of freedom in adopting architectural solutions for the Product and Core teams.

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    Let’s talk about architecture in BigTech, technology selection and accepted “rules”.
    We will touch on the topic of freedom in adopting architectural solutions for the Product and Core teams.
    We’ll get into Fintech solutions created as an important component of global SaaS: microservices, APIs and tags, Event Sourcing, Feature Toggles, SDLC, CI/CD, DevOps, monitoring, analytics, etc.

    Global companies have long used microservices. For example, the monolithic applications of Amazon, Coca-Cola, and Netflix at some point evolved into larger infrastructures. Brands have benefited from this decision and attracted even more audiences. But trending doesn’t mean monoliths are yesterday’s day. My team and I are not used to blindly chasing new trends. We always analyze when one or another option is effective and how it is safer to switch to it.

    Our fintech project was built on a monolithic approach. This approach resembles a Rubik’s cube: if you take one piece out of it and assemble a new form or add other components, the cube will no longer work fully. Each element forms a single functionality. If any part is missing, broken or standing out of place, the colored box will not add up.

    Why did you choose the monolith? First, it allows you to launch the project faster in a startup. When you have to present MVP in a month, but you have no specific requirements or product specifications, Monolith is the only savior. Its flexibility is manifested in the variety of tools that can be integrated to simplify development. In addition, changes or updates can be deployed at once rather than individually. Second, monolith is easy and fast to scale at the start. For our team, the benefits were clear.

    More specialists, including newcomers, can join development on monolith. It is simple and straightforward to use. In such an application, all components are interconnected and interdependent. It will be much easier for any novice to understand the code and logic implemented in monolith than in microservices.

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    Why do we all make bad architecture and how to stop doing it? https://www.xivero.com/why-do-we-all-make-bad-architecture-and-how-to-stop-doing-it/ https://www.xivero.com/why-do-we-all-make-bad-architecture-and-how-to-stop-doing-it/#respond Fri, 23 Apr 2021 17:57:38 +0000 https://www.devsnews.com/wp/techbuzz/?p=57 We will look at the types of errors in the approaches to the design of large systems, which lead to serious or even catastrophic consequences for business.

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    We will look at the types of errors in the approaches to the design of large systems, which lead to serious or even catastrophic consequences for business. There will be interesting real-life catastrophe shows and analysis of their causes from people who professionally deal with technical due diligence of companies and work as consultants in the field of fixing problematic architectures.

    The world became more complex in the mid-1990s. Companies coveted web applications that ran on the intranet to get rid of desktop deployments. And applications had to serve multiple departments, and sometimes even go beyond the company’s borders. A new paradigm, component-based development, also known as CBD, was established. It promised us reusability, scalability, flexibility, and the ability to extract code (usually written in COBOL). We started breaking down our systems into large functional parts and worked very hard to get these components to start communicating with each other. Java was invented, and suddenly everyone wanted to write code in Java (apparently some still do). Components ran on incredible technologies such as application servers and CORBA (look it up on Wikipedia to impress your colleagues). The good old days of object query brokers!

    At the time, I was working at a large international bank trying to create a methodology for component-oriented development. Even with a well-armed team of Andersen consultants, it took us three years to write the damn thing. In the end, both the paradigm and the technology proved too complicated to write decent and well-functioning programs. It just didn’t work that way.

    Service-oriented architecture.

    At that point, in the early years of the 21st century, I thought we had gotten rid of distributed software development and started building web applications. Everyone seemed to bravely ignore Martin Fowler’s first law of object allocation — not to allocate objects. Gradually we moved on to the next distributed computing paradigm, repackaging the promise of component-oriented development into an updated set of technologies. We now started doing business process modeling (BPM) and implementing those processes on an enterprise service bus (ESB), with components providing services. We were in the era of service-oriented architecture, known as SOA.

    After CBD, SOA seemed easier. As long as the components — vendors — were connected to the enterprise service bus, we figured out how to build scalable and agile systems. We now had much smaller components that we could extract from existing systems (written not only in COBOL, but also in PowerBuilder, .NET, and Java). The necessary books on development patterns were written, and the world was ready to get down to business. This time we got to pull it off!

    This time I was working for an international transportation company, and we were building software around SAP middleware, supplying tools for both ESB and BPM. Now we didn’t just need Java and .NET developers, we also had middleware developers and SAP consultants working for us. And even though Agile was suggested to speed up development (I know, it’s not the right argument), projects were still too slow, moreover, when all the puzzle pieces fell into place, we started to realize that integration testing and deployment of new releases was getting more difficult by the day.

    Finally: microservices!

    I hope you’ll forgive me for such a long and confusing introduction to the subject of microservices. You may be thinking, “why do we need another article on microservices, isn’t there already enough literature on the subject?” In general, yes, there is enough. But if you look carefully at the stream of articles that can be found on the Internet, most of them only describe the benefits and features of microservices (sing “hallelujah”), some of them describe the few known examples of innovators (Netflix, Amazon, and Netflix, and Amazon, and Netflix…). And only a few articles actually dig a little deeper, and those tend to consist of a summation of the technologies used in implementing microservices. It’s all just getting started.

    And here it doesn’t hurt to take a little history. Interestingly, the benefits and capabilities of the predecessors of microservices are still with us. Microservices seem to promise scalable and flexible systems based on small components that can easily be deployed independently, and thereby promote the best technology option for the component. In other words, the same promises we’ve bought into with CBD and SOA in the past. Nothing new here, but that doesn’t mean that microservices aren’t worthy of close consideration.

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    Automating Node.js deployment to a production environment with Shipit on CentOS 7 https://www.xivero.com/automating-node-js-deployment-to-a-production-environment-with-shipit-on-centos-7/ https://www.xivero.com/automating-node-js-deployment-to-a-production-environment-with-shipit-on-centos-7/#respond Fri, 26 Mar 2021 18:50:00 +0000 https://www.devsnews.com/wp/techbuzz/?p=70 Shipit is a versatile deployment and automation tool for Node.js developers. It uses a task flow system based on the popular Orchestrator package, a login system and interactive SSH commands based on OpenSSH, and an extensible API. Developers can use Shipit to automate build and deployment workflows for a variety of Node.js applications. Shipit workflows […]

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    Shipit is a versatile deployment and automation tool for Node.js developers. It uses a task flow system based on the popular Orchestrator package, a login system and interactive SSH commands based on OpenSSH, and an extensible API. Developers can use Shipit to automate build and deployment workflows for a variety of Node.js applications.

    Shipit workflows allow developers not only to configure tasks, but also to specify the order in which they are executed, whether synchronous or asynchronous execution is required, and the execution environment.

    In this tutorial, we will install and configure Shipit to deploy a Node.js application from a local development environment to a production environment. We use Shipit to deploy the application and configure the remote server through the following steps:

    Transferring Node.js application files from the local environment to the production environment (using rsync, git, and ssh).
    installing the application dependencies (node modules).
    setting up and managing Node.js processes on the remote server using PM2.

    Prerequisites

    Before starting this tutorial, you will need the following:

    • Two CentOS 7 servers (in this tutorial we will use app and web names for them) with a configured private network as instructed in the tutorial Configuring a Node.js application for a production environment in CentOS 7.
    • Nginx web server (on the web server) secured with TLS/SSL as described in the tutorial Securing Nginx with Let’s Encrypt in CentOS 7. If you complete the prerequisites in chronological order, you will only need to complete steps 1, 4, and 6 on the web server.
    • Installing Node.js and npm in a production environment. This tutorial uses version 10.17.0. To install it in macOS or Ubuntu 18.04, follow the Installing Node.js and Creating a Local Development Environment in macOS or the Installation with PPA section of the Installing Node.js in Ubuntu 18.04 guide.
    • Installing Node.js also installs npm, this tutorial uses version 6.11.3.
    • Local development computer with rsync and git installed.
    • On macOS, you can use Homebrew to install them.
    • For instructions on installing git on Linux distributions, see the Installing Git tutorial.

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    Migrating Cassandra to Kubernetes: Features and Solutions https://www.xivero.com/migrating-cassandra-to-kubernetes-features-and-solutions/ https://www.xivero.com/migrating-cassandra-to-kubernetes-features-and-solutions/#respond Wed, 17 Mar 2021 18:44:06 +0000 https://www.devsnews.com/wp/techbuzz/?p=65 We encounter the Apache Cassandra database and the need to operate it as part of a Kubernetes-based infrastructure on a regular basis. In this piece, we will share our view of the necessary steps, criteria and existing solutions (including a review of operators) for migrating Cassandra to K8s.

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    We encounter the Apache Cassandra database and the need to operate it as part of a Kubernetes-based infrastructure on a regular basis. In this piece, we will share our view of the necessary steps, criteria and existing solutions (including a review of operators) for migrating Cassandra to K8s.

    So what is Cassandra? It’s a distributed storage system designed to manage large amounts of data while providing high availability without a single point of failure. The project hardly needs a long introduction, so I will only give you the main features of Cassandra that will be relevant in the context of a specific article:

    • Cassandra is written in Java.
    • The topology of Cassandra includes several levels:
    • Node – a single deployed Cassandra instance;
    • Rack – a group of Cassandra instances, united by some feature, located in one data center;
    • Datacenter – a group of Cassandra instances located in one datacenter;
    • Cluster – the set of all data centers.
    • Cassandra uses an IP address to identify a node.
    • Cassandra stores part of the data in RAM for fast write and read operations.

    Now to the actual potential migration to Kubernetes.

    Check-list for migration

    Speaking of migrating Cassandra to Kubernetes, we hope to make it more manageable with the move. What will it take to do this, what will help?

    1. Storage for data.

    As already clarified, Cassanda stores some of its data in RAM – in Memtable. But there is another part of the data, which is stored on disk – as SSTable. To this data we add Commit Log entity, the records of all transactions, which are also saved to disk.

    In Kubernetes, we can use PersistentVolume to store data. Thanks to well-designed mechanisms, working with data in Kubernetes is getting easier every year.

    We will assign each pod with Cassandra its own PersistentVolume

    It’s important to note that Cassandra itself implies data replication, offering built-in mechanisms for this. Therefore, if you are building a Cassandra cluster with a large number of nodes, there is no need to use distributed systems like Ceph or GlusterFS for data storage. In that case, it would make sense to store data on a node disk using local persistent disks or hostPath mounts.

    Another issue is if you want to create a separate developer environment for each feature branch. In that case, the right approach would be to raise a single Cassandra node and store data in a distributed repository, i.e. the mentioned Ceph and GlusterFS would be your option. Then the developer will be confident that he will not lose test data even if one of the Kuberntes cluster nodes is lost.

    2. Monitoring

    A practically non-alternative choice for implementing monitoring in Kubernetes is Prometheus (we talked about this in detail in a related report). How is Cassandra doing with metrics exporters for Prometheus? And, more importantly, with the Grafana dashboards that fit them?

    We chose the former because:

    • JMX Exporter is growing and developing, while Cassandra Exporter failed to get proper community support. Cassandra Exporter still doesn’t support most versions of Cassandra.
    • You can run it as a javaagent by adding the -javaagent flag.
    • There is an adequate dashboad for it, which is incompatible with Cassandra Exporter.

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