Decentralized Apps- A Future Of Mobile Apps

Technology is reshaping the financial landscape and offers a wide range of use cases for decentralized app development. Because of transparency, readability and scalability DApp trend is spreading like wildfire. Ethereum blockchain is a main platform for building decentralized apps. Whereas, according to study, games and data storage are leading DApps categories. So what are decentralized apps? How are they different from regular apps? How to develop decentralized apps? Let’s see everything about the DApps.

What Is Decentralized Apps?

DApps

Decentralized apps are software applications without any central authority. But, unlike traditional applications that rely on a client-server network- maintained and authorized by a rule, they operate on peer-to-peer or distributed network. As there’s no one to control, dapps are less likely to be shut down by anyone or undergo downtime. Decentralized applications always builds on decentralized network. The network combines a smart contract and a frontend UI. On ethereum, smart contacts are transparent and accessible like open-source APIs, so you can include a smart contract written by someone else. Backend code of dApp’s runs on a decentralized peer-to-peer network, unlike regular app where backend code runs on decentralized servers. You can develop the frontend and user experience and interface similar to normal apps, making calls to its backend.

Decentralized Apps Vs Normal Apps-

1. Centralized Vs Decentralized-

Basic difference between Dapps and normal apps is decentralization’s root principle. Contrast to traditional apps that are controlled by centralized regulating authority, DApps operate on peer-to-peer blockchain network.

2. Security-

DApps are built using the blockchain platform so they are more secure as compared to regular mobile apps. Also decentralized apps tend to be tamper-proof, and the saved records are unchangeable. They are hacking and potential destruction resistant. 

3. Value Storage-

Store value of DApp is one of the best features. It can store cryptocurrency and hand it to users once fulfilled the contract conditions. In contrast, traditional apps have to use a reliable third party to guard financial transactions. As you can store value directly inside the app, DApps eliminate any third-party requirements. 

4. High Synergy Level-

When it comes to synergy, decentralized apps get the upper hand as they integrate seamlessly. As all the blockchain powered apps are inter-compatible, their synergistic possibilities increased in contrast to conventional applications.

5. Transparency-

Another difference between decentralized and normal apps is unchangeable public ledger. Unlike any other app, data or operations on the DApp are recorded in the blockchain and stay there forever unaltered.

Benefits Of Building Decentralized Application-

1. Zero Downtime-

Once the smart contract is deployed on the blockchain, the network will start serving its client. These contracts powering dapps operate 24/7, and till the blockchain harbor the contracts, they continuously perform smoothly.

2. Resistance To Censorship-

As dapps are not controlled, no one can block or keep users from submitting transactions or reading data from the blockchain.

3. Privacy-

You can secure transaction between users without sharing data using public and private keys.

4. Complete Data Integrity-

DApps don’t have a central point of failure, and stored data is unchangeable due to cryptography primitives. These features make it hard to hack teh chain and control a decentralized application.

Apart from all these advantages, DApps offer the following advantages.

• More security than client/server networks
• No intermediary for app control
• Cannot change written blocks without agreement of entire network
• Tamper-proof record of entire database
• No downtime
• Increased reliability
• Simple for payments
• Single outage/attack cannot halt it

Types Of Decentralized Apps Development-

1. Type 1:

In this type 1, you can create your own blockchain to develop your decentralized app. Bitcoin is an example of this type. Any other cryptocurrencies having their own blockchain comes under this category.

2. Type 2-

The type 2 dapps supports the blockchain created by type 1 applications. Those apps need to use tokens to operate their applications.Consider, Omni protocol, for instance, It’s built as the layer over Bitcoin, allowing you to create, send, redeem, pay dividends to and make best with the tokens representing any type of asset.

3. Type 3- 

This kind of dApps makes use of the type 2 protocol to underwrite their tokens. Safe network is an example of type 3 dapps. SAFE(Safe Access For Everyone) is an open-source, decentralized data storage and communications network. Programmers create censorship-resistant websites and apps using the SAFE API.

Most Common Platforms To Create Decentralized Apps-

1. NEO-

It is a centralized, open-source blockchain that creates smart economy. It is called as Chinese Etherum and provides better options for scalability in dApps than other blockchain platforms. Currently, NEO is less popular than Etherum with just about 100 dApps built using this technology. Also, it is expensive and costs higher than Etherum in some cases.

2. Etherum-

It is the most popular decentralized, open-source blockchain used as the base for many blockchain project, including more than 2500 dApps. In terms of market value, Etherum is the only second to Bitcoin. Etherum also has a native cryptocurrency called as BTH- version of Bitcoin. Though it’s a bit expensive, it is a great option for creating dApps.

3. TRON-

It is a new blockchain platform as compared to Etherum or NEO. BUt it is popular and may even become a competitor to ethereum in the future. TRON is popular for gaming apps and gambling sites. Near about there 1500 dApps created using TRON that makes it great choice.

How To Develop A Decentralized Appli?

1. Decide Use Case-

Blockchain offers advantages like immutability, encryption, distribution, decentralization and tokenization etc. First of all, you need to analyze the problem that you want to solve and know if the solution really needs decentralization, encryption or any blockchain components. This step clears whether you need to develop a dapp. And if needful, which kind of decentralized app you should create.

2. Decide Technologies-

When you are finalized to create a decentralized app, list out the required technologies for development.    

• Frameworks
• Database
• Hosting
• Frontend
• Frontend Contracts
• Contract’s programming language
• API’s
• Development server
• Features of dApps

If you create dapp using Ethereum, it’s standard kit for dapp development includes the Truffle suite of software with Ganache(BUILT-IN BLOCK EXPLORER), programming language solidity and Remix IDE.

As for the front-end part, you can use suitable technologies like React.js, Node.js, Swift/Kotlin or React Native for mobile and Web3.js for the web. 

3. Front End Development-

Just like any application, decentralized apps need to have a client-side mobile app or website. Hence it is important to create an attractive UI that helps user to understand complex information quickly. Following approach is the best to achieve a user-friendly app UI/UX for any type of app.

• High-fidelity UI with prototyping
• Low-fidelity UI with wireframing
• User testing
• Shore up the UI/UX based on feedback.

4. App Coding-

To create a robust backend, you should hire app programmers with a strong knowledge of decentralized app architecture and workflow. Programmers should be familiar with building and deploying smart contracts on a network.

5. Testing & Launching –

When a decentralized app is ready to take off from the ground, you want to release it on the network. 

With this, you get the opportunity to analyze the code rigorously and fix bugs and errors before making it public.

 

When And How Often Should You Update Your App?

Our lives have been improved because of mobile applications. Mobile technology industry has provided a solution for almost any type of task you could be indulged in. The number of mobile applications is continuously increasing. Even the most widely used and long-lived apps continuously release updates and not just to add new changes and features to the app, but for bug fixing too. As an app developer, updates are just another fact of life. But how often should you update your app? Because it is important to fix issues and bugs with your application at the same time it is important that you’re not irritating users with too many updates. Before digging into the details of how often should you update your app, let’s see the reasons for updating your app.

Also know – Tips to improve mobile app performance

Reasons For Updating Your App-

There are four main reasons to update your app- Bug fixes, feature releases or design changes, bad reviews and competition. Google play allows marketing teams to update google play page creatives seamlessly without rolling out a new version of the app, app store needs you to release a new version to update app store creatives. 

1. Bug Fixes-

Updates that addresses bug fixes are born out of necessity- part of your app is not working properly. The magnitude of bug can vary from minor instability to app crashes, but your application needs to provide a seamless and delightful experience to retain users. These updates are important and you should work on it with high priority.

In google play, android vitals report measures the crash rate and App Not Responding (ANR) event count. These metrics influence the Google Play algorithm algorithm that will not promote apps that are too unstable. With the help of an ASO person, monitoring these metrics will help to inform the team that the new version is affecting rankings.

2. Feature Release-

Features are an important part of mobile apps and so feature releases are important to maintain the user engagement. New features are exciting and useful as they ensure that your applications’ features remain updated and relevant. Also, feature releases show users that you care about their changing needs. UI and UX changes are reasons for updating your app. Maybe operating system design guidelines have changed, your interface is outdated or highly complicated, or you’re basically rebranding. 

3. Bad Reviews-

Generally bad reviews indicate serious bugs, defects or missing features. As a programmer, your first priority must be addressing user concerns and accordingly updating the app. With each app update on Apple store, you can either keep your rating history or start new. Hence you can use updates to your advantage.

4. Market Competition-

Users search for the apps that meet their needs. New updates that increase the app’s value will help you to be unique and stand out in the competitive market. On the other hand, failing to regular app updates may lead users to rather use competing apps as it conveys the sense of an app that is not supported any longer. 

How Often Should You Update Your App?

1. Monthly Updates-

Updating app monthly is the most common and popular timeframe for app updates. As a programmer it gives you a baseline for when to expect releases and it’s frequent enough to make sure that your app stays relevant without annoying users. Simple, it’s a perfect balance. 

Hence, releasing update at least once a month is a good strategy and will keep the content fresh.  When you can update more frequently, don’t want to exceed three or four updates per month. Because too many updates irritates your users and might drive them away from your app.

2. Hitting Milestones-

Important app milestones like launch anniversary is good strategy for planning updates, especially bigger ones that include feature releases and not just minor bug fixes. This can increase hype around your app and create excitement among users about what’s coming next.

Similar to traditional storefront might offer a big sale or renovation to coincide with the anniversary of opening, scheduling big updates for app can help to refresh it and create user engagement.

Most of the time, users will download an app and forgot about it. Releasing updates around important milestones will remind users that your app exists and motivating them to come back to check new features will increase interaction. This is great for not just releasing big updates to app with the opportunity to generate hype, but it also forces development team to keep content fresh and updated with the trends. 

3. Be Updated With Trends-

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NFT Marketplace Development- All You Need To Know About

Popularity of online marketplaces is increasing day by day and the global economy has transformed with the advent of Blockchain apps in the process. From fungible tokens such as cryptocurrencies to non-fungible tokens, the financial landscape of digital transactions has become more encrypted, authentication-proof, and unique. Non-fungible tokens are one of the latest developments in the digital economy but for most of the techies NFT development is unclear. While the number of high-end digital art transactions is increasing, most purchases are more affordable files like unique items for video games, collectible tokens and domain names. If you are thinking of entering the world of NFTs, you might want to develop your own NFT marketplace. If you’re wondering about how to develop the NFT marketplace, then this blog is for you. Let’s get started.

What Is NFT?

NFT Marketplace Development

NFTs are cryptographic tokens that acts as digital certificates authorizing the uniqueness of real estate, digital entities, artwork and even people. You can identify NFTs as a unique tokens that cannot be replicated with another. For instance, 1 USD can be replaced with another 1 USD. 1 unit of bitcoin is the same as 1 unit of bitcoin, that is not the case with non-fungible tokens. 

NFT marketplace allows users to build an account, upload digital artwork and make sales. Generally, niche marketplaces are popular than standard ones, because they offer everything that clients may need, specialize in selling some online artworks and contain a particular target audience.

How NFT Marketplaces Work?

NFT require a place to be bought and sold. NFT marketplaces combine a user-friendly front-end environment for displaying and brokering files. Also, they must have a well-designed back-end that supports the underlying blockchain tech.

1. Crypto Wallets-

Sellers and buyers need crypto wallets to work with NFTs. These digital apps don’t store NFTs or digital coins such as files on a disk drive. Rather they include information that points to the location of the owner’s flies on the blockchain. For a more extensive customer base, marketplaces will need to work with a few crypto wallet providers such as MyEtherWallet or WalletConnect. 

2. Sales And Auctions-

Marketplaces works same as art galleries in the real world. Sellers can list items for sale at a fixed price. Marketplaces can also hold auctions for new art pieces or works by notable artists.

3. Smart Contracts-

NFT marketplaces use smart contracts to explain the terms of sale between a buyer and seller. Such terms are coded into self-executing digital contract contained on blockchain network. Once the buyer meets the seller’s terms, the contract validates itself,a nd the transaction becomes irreversible.

4. Operation Costs –

Generally users forget the costs involved with digital transactions. Clients regularly fail to remember the expenses associated with computerized exchanges. Notwithstanding, dealings that include blockchain are energy-intensive. NFT cost may include the energy costs of brokering the transaction on network and covering money into cryptocurrency.

Important Features Of NFT Marketplace-

If you are thinking of developing your own NFT marketplace, there are front-end and back-end concerns. NFT programmers should create a user experience that makes it easy to search for files and back-end process that seamlessly manages the complex transactions.

1. Storefront-

Basic concept of NFT marketplace is similar to eCommerce marketplace, meaning that you can consider the same app approach to create or deploy these platforms. Storefront acts as the face of marketplace where users can view different products and their details like price or auction window.

2. Search Functions-

You can add modern search buttons so as to rapidly search items of their interest. They can improve the scope of search results as there can be a huge range of niches of products listed on the marketplace. Implementing more accurate search functions will allow marketplace to enge in a smoother buying process.

3. Filters-

Filters are highly beneficial. Also it becomes easy to undergo a website. If you are creating an NFT marketplace platform for collectibles, add filters. It allows users to freely choose assets by category, payment method, due time and listing status.

4. Auction And buying-

NFT programmers can provide your site with some selling mechanisms. Well known artists get best prices through timed auctions as the competition can rapidly increase the cost. Also the backend work for auction is challenging than for basic sales. Specifically toward the end of auction, bidding can be intense and the site must provide real-time information of the process. Direct buying and selling is a simple process. Also, using smart contracts on the blockchain needs more development than payment gateways of traditional ecommerce websites.

5. Crypto wallet-

Crypto Wallet is an important component of the NFT marketplace ecosystem. Wallet should be secure and it should be capable to handle multiple crypto coins. Always keep in mind that NFT marketplace is like a cryptocurrency exchange and has a certain degree of centralization. Hence your crypto wallet should be guarded by simple but effective strategies such as two-factor authentication and multi-signature login.

6. Create Listing-

Allow users to create and send digital collectibles. Ensure that they need very less effort to do it.  Create a page where they can submit files, typing in the detailed product  description. Title, tags and description is a necessary information. 

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How To Secure Flutter Mobile Apps?

 

Day by day the popularity of flutter is increasing among developers and entrepreneurs. Flutter has emerged as one of the leading and popular cross-platform app development frameworks because of its integral capability to deliver best native user experience, faster development through code reusability, faster app testing and deployment through high reloading features etc. And when it comes to app development, biggest concern for programmers and customers is security. As most people use mobile apps for shopping, ordering food, and money transactions, it becomes essential to secure your app. Hence here we came with some tips to secure your flutter app. Let’s have a look. 

Know the latest features of Flutter 2.5 at- What’s New In Flutter 2.5 And Dart 2.14?

How To Secure Flutter Mobile Apps?

1. Secure CI Infrastructure-

You should know what’s going on in your VM’s and workflows depending on whether your CI infrastructure is self-hosted or using services like Github actions.

Updates-

So as to ensure your apps are running in a secure environment, you must keep your VMs up-to-date or be on a lookout for security vulnerabilities.

Secrets-

You should not commit API keys or related sensitive data in your code, rather you add them on secrets settings of your project. Other services such as Bitrise provide the same option to store secrets.

2. Secure Developer Identity-

Files such as keystore, keystore.properties, Google service account or any secrets that can reveal developers identity must be encrypted at all times when tracking in repository.

Create a directory and use GPG to encrypt it.

cd android
gpg --symmetric --cipher-algo AES256 android_keys.zip

Encrypt sensitive files, for example, key.jks and keystore.properties

Ignore and don’t keep track of unencrypted sensitive files.

# Ignore Android keys
key.jks
key.properties
service_account_key.json
Android_keys.zip

3. Secure User Data-

PII(Personally Identifiable information) is the most critical data that you don’t want to store on your apps, because unfortunately,if revealed, the company is in big trouble. But there are some cases where PII is required, for instance, for offline-first apps. Whenever required, you can use flutter_Secure_store to store PII or other sensitive data like auth token.

In short, Flutter secure storage is a package that makes use of Keystore for android and Keychains for iOS. Both of them are considered a standard in terms of security-sensitive data to user’s mobile devices.

Caching-

To store sensitive data other than PII, it will be better to use Hive for performance gain, though it needs more setup. It uses AES-256 encryption that helps you to secure the data of users from unwanted exploit or tampering. 

Tip- To secure the users data, don’t store it in plain text.

4. Restrict Network Traffic-

Generally the apps are connected to the internet, whether to a third-party service provider or to their own servers. Also, the app exchange carried out on a Transport secure layer (TLS) to provide a secure connection between mobile apps and your servers.

Trusted network-

Way to restrict network traffic or connection to an unsecured endpoint is via explicitly whitelisting your domain.

For Android:

res/xml/network_security_config.xml

<?xml version="1.0" encoding="utf-8"?>
<network-security-config>
    <domain-config>
        <domain includeSubdomains="true">example.com</domain>
        <trust-anchors>
            <certificates src="@raw/my_ca"/>
        </trust-anchors>
    </domain-config>
</network-security-config>

For iOS-
ios/Info.plist

<key>NSAppTransportSecurity</key>
<dict>
  <key>NSAllowsArbitraryLoads</key>
  <false/>
  <key>NSExceptionDomains</key>
  <dict>
    <key>cocoacasts.com</key>
    <dict>
      <key>NSIncludesSubdomains</key>
      <true/>
      <key>NSExceptionAllowsInsecureHTTPLoads</key>
      <true/>
    </dict>
  </dict>
</dict>

Certificate pinning-

Implement certificate pinning for apps to restrict the secure connection to specific certificates. It ensures that the connection between apps and servers is authentic and trusted. Without certificate pinning, hacker can eavesdrop or tamper data when on transit using hacked or self-signed certificates.

5. Secure API Keys-

There are various formats of keys, but generally it is in the form of a String. If it is not encrypted or obfuscated, it will be easier for hacker to use your API keys.

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Top 10 DevOps Trends For 2022

DevOps is a collaborative process of software delivery that brings together the business teams, development teams and operational teams. It is a set of practices and ideas that relate to flexible, quick and efficient development. With the frequent communication, DevOps engineers ensure that the product in development matches the market requirement. Programming approach of DevOps offers some benefits as the teams collaborate to deliver a product that works in the market. Those benefits include rapid development, enhanced collaboration and responsiveness, more time-to market, etc. One of the main reason of popularity of DevOps consulting is, it enables high-quality software delivery. And following the latest devops trends and best practices will help you to deliver the best in class product. So here we’ll discuss the DevOps trends and best practices for 2022.

Top 10 DevOps Trends For 2022

1. Application Of DevSecOps-

DevSecOps is a new trend for DevOps that refers to the involvement of security and DevOps. However it might appear to be a new concept, it has been being used recently. All the vulnerabilities, attacks and security breaches causes several issues around the different networks. DevSecOps has sorted out the agile security network that will sort out the security issues and then incorporate the new technologies for keeping all kinds of hazards.

DevOps can reduce cost and speed up things. According to the verified market research reports, worldwide DevSecOps market value was $ 2.18 Billion in the year 2019 and will reach-out$ 17.16 Billion by 2027. It has been increasing at a CAGR of 30.76% from 2020 to 2027. Latest trends and future DevOps predictions suggest that DevSecOps systems ensure the security aspect of the system.

2. Microservice Architecture-

Microservices architecture is a cutting edge application in 2021. It divides data into chunks and independent units that are scalable and flexible. According to DevOps prediction for 2022 , there will be little bit changes in cycle that turns out to be free from hassle. Global microservices architecture market value was $2,073 million in 2018 and is predicted to reach $8,073 million by 2026.

In DevOps, there has been a necessity for deployment of the new version, and you just can’t proceed with the deployment of the minor highlights or the functionalities. This way, there has been an involvement of the microservice architecture. DevOps with microservices architecture is overwhelming the complications that it includes by allowing supply cycles. Customization will also be inclining toward the rise of the scaling choices.

3. DevOps Automation-

It is necessary for most enterprises today. Development teams spend a lot of time to fill the manual forms, creating change requests and logging into portals. Manual processes disturb the essential task and development lifecycle. DevOps automation is becoming common because companies move to understand data in a great way and automating manual processes. This allows programmers to focus on app development and results in faster delivery of products.

https://solaceinfotech.com/blog/top-10-devops-trends-for-2022/

 

Reduce App Development Cost With React Native- How?

According to the recent survey, it has been analyzed that users spend more time on mobile apps for travel bookings, shopping, food order and so on. So developing a cross platform app is the best thing that will help you to establish yourself in the market and get a secure place. Mobile app development is not simple as it looks. Developers need to perform various assignments and go through various improvement stages so as to deliver effective and functional mobile apps. Choosing a cross platform app development will help you to reduce the overall app development cost because building a native app separately for each platform will be time consuming and costly too. While developing an app, some questions come to the developer’s mind-

• How to fulfill the client’s requirements while maintaining the overall cost of mobile app development?
• What are the ways to decrease the app development cost and time?
• How can they cut the cost without compromising any app aspect or feature?

And the answer to all these questions is ‘React Native’. Let’s have a look at why you should use React native frameworks and how it will reduce app development cost.

Why Should You Go For React Native Frameworks?

As we all know, the mobile app development industry is in the limelight so it is a perfect time to take over the market by entering with the cross platform app. React native is one of the most commonly used cross-platform frameworks among developers. For react native app development, some elements are important, such as features, highlights.

Let’s see the details of factors that affect the app development cost-

1. Mobile App Platform-

Developing an android app or ios app depends on the app’s requirements and its targeted audiences. Every platform comprises different tools and programming languages, and the UI/UX design of an iOS app changes in comparison to an android app. So, choose the best platform that will work best for your app.

2. Features-

Features are an important part of an app and its integration is based on the app type that you are developing. More features will complex the app so it will be better to avoid the unnecessary features.

3. UI/UX App Design-

App design should be unique and impressive. You can go with the native app design consisting of Android and iOS ready templates. Also you can go with the custom design option but it takes more time and cost.

4. Backend Development-

Businesses want software with the latest features, a large database and access to all the possible elements. Backend process manages and store the data while ensuring the smooth app working on the client-side. So the entire cost can be dependent on variables included in the backend process.

How Does React Native Help To Reduce The App Development Cost?

1. Faster Development-

Developing apps for individual platforms is so time-consuming and needs more development efforts and cost also. It is better to adopt the cross-platform mobile app development solution with the help of React Native. It will be better for businesses to spend less time on app development and more on building strategies. Compatibility with cross-platform solution is more effective and fast solution as compared to old native methods. Maintaining similar code for android and iOS will be easy for developers also.

2. Low UI Cost-   

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How To Choose The Right Headless CMS?

We have seen a major shift in CMS(Content management system) in recent years. Lots of companies are through digital transformation so they are looking for ways to become more agile and deliver modern digital experiences. They want to adapt new technologies and methodologies, like cloud, microservices, front-end frameworks, or DevOps. Eventually, they realize their legacy content management solutions hold them back. If you’re also facing the same issue, then this blog is for you. Here we’ll discuss how to choose the right headless CMS.

How To Choose The Right Headless CMS?

1. Know The Headless Architecture-

If you’re well known about traditional CMSs, it is important to understand how they’re different from headless. Let’s see the difference in architecture-

Monolithc Vs. Microservices Architecture-

Monolith Vs. Microservices Architecture

Traditional CMSs combined content management and its presentation in a single coupled solution. They control the content presented on the website, using proprietary templating engines. They tend to add various extra marketing or commerce capabilities. The result is a big monolith where CMS plays a central role.

Headless CMS manage content and provide it through API. Meaning that, the content can be delivered to any digital channel including mobile, online store, website, chatbot etc. This is a popular approach among programmers who want to use progressive front-end frameworks and build mobile apps. Headless CMSs fit the microservices architecture perfectly and in this model, you build digital product by connecting specialized services from various vendors through APIs.

In microservices architecture, you build a digital experience stack around a digital product instead of building a product around a particular CMS. Meaning that, you don’t need to throw your digital product when you decide to switch to another CMS.

Web First And Content First Approach-

Traditional CMSs were for the web. They’re built around web-specific concepts like sitemap, website and pages. They focussed on providing high control over design to business users that may be empowering, but huge control may lead to inconsistency of brand.

Whereas, headless CMSs are designed for the content-first approach and this  starts with content modeling that helps you to define content structure so that it can be reused across various devices. It provides more flexibility and needs a change in how you think about and work with content.

2. Pinpoint Your Business Concerns-

Sorting business requirements is an important factor in choosing a Headless CMS because it is all about getting your requirements fulfilled. Here are some of the business cases and requirements to choose headless CMS-

• For implementation of modern technology for digital experience
• To get higher agility, productivity and consistency of brand
• For personalized omnichannel experience
• To increase the efficiency of content operations
• For making business future-proof

3. Identify Requirements Of Key Stakeholders-

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Have You Switched From NPM To Yarn? NPM Vs Yarn

Node.js is best for building highly scalable data-intensive and real-time backend services that power client applications. It allows you to create dynamic web pages written in Javascript such as video streaming sites, single page apps, online chatting applications and so on. These pages are executed on the server before being sent to the browser. NPM (Node Package Manager) is very popular among javascript programmers.  But it started facing an issue with performance and security, and this makes the package manager unreliable. That’s when Yarn was born. It has been gaining popularity since its inception. What do you think? Does Yarn replace NPM? Before digging into it, let’s have a look at an overview of NPM and Yarn.

What Is NPM?

Node package manager is known as NPM. It is a default package manage in Node.js and popular among the Javascript programmers community since its inception in 2010. It automatically comes with Node.js on your system and brings three important components- command line interface, online database of enumerable packages called as npm repository and website to manage different aspects of NPM experience. Over the years, NPM has gained tremendous popularity and now has a huge community of programmers that makes it easy to find help. 

What Is Yarn?

Yarn, released by Facebook in 2016, is a popular package manager for javascript programming language. One of the main intentions to create Yarn was to address some of the security and performance shortcomings of working with npm. It provides similar functionalities as NPM. Although it has a slightly different installation process, it enables you to access same registry. So switching from NPM to Yarn is hassle-free.  

NPM Vs Yarn- The Difference

1. Installation-

NPM-

It is distributed with Node.js so when you download Node.js, automatically you will have npm installed and ready to use. Once the Node.js has been installed, use the command to ensure installation was successful- 

node -v
npm -v

Yarn-

For Yarn, you have two options.  If you want to install Yarn using npm, enter the following command-

npm install yarn --global

But, programmers advise against using npm to install Yarn. Then, a better alternative is to install Yarn using your native OS package manager. For instance, if you’re using brew on Mac, you’d enter:

brew update
brew install yarn

If you’d like to try Yarn on an existing npm project, run –

yarn

Then see your node_modules folder displayed using Yarn’s resolution algorithm.

2. Installing Project Dependencies-

Let’s see how project dependencies are installed. When you run npm install, dependencies  are installed sequentially. The output logs in the terminal are informative but a bit hard to read.

To install packages with Yarn, you run the yarn command. Yarn installs packages in parallel that is the reason for being quicker than npm. If you’re using Yarn 1, you’ll see that yarn logs of yarn output are clean, visually distinguishable and brief. Also, they’re ordered in a tree form for easy comprehension. But it is changed in version 2 and 3, where logs aren’t human readable and intuitive. 

We’ve seen that npm and Yarn have different commands to install packages.

3. Speed And Performance-

Whenever Yarn or npm need to install package, they carry out a series of tasks. In npm these tasks are executed per package and sequentially, meaning it will wait for the package to be fully installed before moving to the next. Conversely, Yarn executes these tasks in parallel and this improves the performance. 

Both managers offer caching mechanisms, Yarn seems to do it a bit better. Implementing a zero-install paradigm, it is capable of installing packages almost in zero time. It caches each package and saves it on the disk. Hence in the next installation of this package you don’t need to have an internet connection as the package is installed offline from the disk.

Though Yarn has some advantages, the speeds of npm and Yarn, in the latest version, are pretty comparable. Hence, we can’t decide the final winner.

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