Back-End Task

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Building an app for mobile devices is hard. You have to understand the market you're developing for and what your users want, and then you have to pick a programming language and learn how to fully use it. But there's one aspect of mobile development that makes things even harder: the backend. Having a backend isn't required to build a mobile app, but if you don't know how to do it right (and sometimes even if you do), your users might not be able to access any of your content.

Tell me the backend development process?

There are three main elements to backend development:

• Storing, managing, and retrieving data

• Connecting to databases

• Communicating between multiple servers or clients

The first thing you'll need to decide is how you want your user's data stored. There are three big questions you have to ask yourself about the backend of your app: do you want it hosted on a server? If so, where can your users access it from? Will all of the content be publicly available, or will there be some private content? There are pros and cons to each choice, but here's a quick rundown for each option: Hosted on a server - Users can access from anywhere Private - Only certain users or devices can access it Public - Everyone can access it for free The next important question is what programming language will you use? Again, there are pros and cons to each (and that's beyond the scope of this article), but I'll give a quick overview: 

JavaScript: JavaScript has the benefit of being used in nearly every modern web browser. It uses something called AJAX to communicate with the server, so you don't need anything special installed to connect to your website. However, if you want any type of high-performing and/or data-heavy application, you should probably look into another language like C++ or Java.

C#: C# has one huge advantage over other languages: Xamarin makes it extremely easy for developers to port an Android and iOS app from C#. It also has a Start Developing in C# guide that's easy to follow, so if you're just getting into backend development and want something with tutorials and forums to help you out, this is the way to go.

Java: Although there isn't much support for Java when it comes to mobile apps, the language itself is extremely powerful and versatile. If you already know how to use Java (or can manage with Google), then this would probably be the best choice for your app since it'll give you complete control. As far as developing an actual server goes, there are three main options: Windows Azure, Heroku, and Amazon Web Services. Each one has its benefits - AWS is scalable and good for big projects, Azure is great for those who want to develop cloud-based apps, and Heroku is very beginner-friendly.

If you already know what programming language you want to use but don't know how to code a server, there's always the option of purchasing a premade one. This gives your app a solid backend that can store data and be accessed by everyone instantly without having to worry about security issues. However, this does mean that all of the money spent on the backend (which could cost thousands) will go to waste if you decide you no longer need it. This route also doesn't give you as much control since most premade servers are coded with JavaScript or PHP (more on each later).

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Scripting vs. coding

There are two ways of creating a backend for your app: writing it yourself or using an off-the-shelf solution like Parse. I'm not going to go into detail on how to write your server (if you want to know, there's plenty of information online), but the main difference between scripting and coding is that scripting doesn't require much knowledge about how programming languages work while coding requires that you use specific syntax commands. Scripting comes with pros and cons of its own - some argue that PHP scripts can be written completely in Notepad (not true), but they're not always as secure as custom-coded servers since you don't have access to code files.

Programming languages

There are a lot of programming languages out there, but here's a quick rundown on the pros and cons of some of the most common ones:

PHP: One of the main reasons to use PHP is that it's extremely beginner-friendly - you can learn enough to make a server in 10 minutes. This also makes it easy to get hacked, which may or may not be an issue depending on how much sensitive information your app stores. For instance, if all that gets stored is user data (which isn't too hard to figure out), then you're probably fine using PHP since hacking was only as difficult as clicking around Google for ten minutes. If your app stores passwords though, then I'd recommend coding in C++ instead.

JavaScript: JavaScript isn't commonly used for writing entire servers, but is the best choice if you want to create a smaller one with some type of database. It's also important to note that almost all web browsers support JavaScript so you can access your website from anywhere if it's created using this language.

C#: C# was named one of GoDaddy's top programming languages for security, so if you're looking for something more secure than PHP, then this might be the way to go. It can also be used in conjunction with Xamarin, which allows developers to use the same code on Android and iOS apps.

C++: Since C++ is compiled rather than interpreted (check out this article for an explanation), it results in much faster execution times than other programming languages. This is why it's used for games, operating systems, and most of the programs that come preinstalled on your computer or laptop. However, if you're just starting with backend development then this might not be the best choice since it takes a lot of time to learn (the official website even cautions beginners from using it).

Even though there are so many options when it comes to coding a backend, don't get discouraged - any one of these will work well. Just remember that no matter what language you choose, the security measures you put in place should be at least as good as whatever code you write (or they'll only end up hackers anyways).

Front-end vs back-end development

Since the front-end is what you see when you open your website or app, it tends to be more complicated than the backend. That's why most coders will only work on the back-end when they're starting since it's much easier than coding both. There are benefits to working in teams though, so if you do decide to do both then make sure that everyone stays in his or her lane so everything gets done correctly.

The best way to learn how to code is by practicing - just like with math problems in school, there aren't any shortcuts but it gets exponentially easier once you understand all of these concepts. Only after doing it for a while will you know which language(s) and technologies fit your needs best, but at least now you have an idea of what they are.

So whether you want to code out a new app for your business or just want to switch careers entirely, make sure that you don't rush the process since it is easier said than done. You'll be able to do amazing things if you put in the work through - writing your backend may only take 10 minutes, but doing it well takes way longer. That's why I recommend working on your programming skills as early as possible so that when you go into college or grad school (most likely), then everything will feel much more natural.

What is full-stack development?

Understanding the difference between front-end and back-end development is important since it will help you find your niche in the programming world. However, not many people can work on both sides of things so there's no harm in knowing what each one entails.

Full-stack developers are those who know how to code out all aspects of web or app development, but most companies will hire either one or the other. That being said, some entrepreneurs may want their entire team to be full-stack so they can move more seamlessly without any hiccups along the way. If that's you, then learning HTML/CSS (the building blocks for websites) and JavaScript (used primarily for client-side coding) is a good start since it covers the front-end (UI/UX).

And since the backend is usually more difficult to build, then learning PHP or some other server-side language is crucial for that side of development. Since you'll probably be working with databases as well, it's recommended that you learn SQL so that you can create and modify existing tables using an app like MySQL Workbench.

As for technologies, here are some of the most popular ones for full-stack developers:

Python Django Express MongoDB Flask React Ruby on Rails Phalcon AngularJS

Where do I even begin?

Since there are so many coding languages out there, it can be intimidating if you're just getting started. But don't worry - according to the Bureau of Labor Statistics, the need for developers is still growing so you never know where it might take you.

One great way to start is by looking for courses online since it's an engaging way to learn and retain information better than just reading a book or listening to a lecture. And since practice makes perfect - if you can afford it then enrolling in an intensive Bootcamp is another good option (but expensive).

Build your website's backend first!

When learning how to code an app, everyone always recommends that you build out the frontend first. It seems simple enough - just throw some HTML together and create static pages so that it looks great on all devices. Plus, since most users will be interacting with your site through their web browser then why wouldn't you focus on the visuals? The truth is much more complicated though...

If the back-end isn't built, then all of your users will be stuck trying to hack it. And unless you're a web developer yourself, then you probably don't know how to code out a security system that can handle millions of requests every day. I definitely wouldn't want to find out if something is vulnerable or not by having security breaches on my website - besides, inputting the wrong data into a form field could potentially break an entire page from loading altogether.

And building out the front is much more difficult since there are way more moving parts involved. Instead of just coding HTML/CSS/JavaScript for one or two scripts on a site, you'll have to manage multiple files and make sure that they interact with each other without introducing conflicts. And besides, your server will only allow so many requests before it shuts down your website or app since you have no idea how to handle spikes in traffic either.

So before you learn the front-end, I think it's better to start by building out backend scripts that can be used to test business logic instead of just HTML forms for creating/modifying data. This way you'll know how to authenticate users without running into any problems along the way or worrying about unauthorized access when debugging. Plus learning all of this is much more useful when applying for a job - and most companies prefer full-stack developers who can work with both sides seamlessly (and since there are fewer openings then knowing every detail will help improve your chances).

If you work with APIs, then learning how to design them is just as important!

Now that you know how to build the backend (where the data lives), there's another crucial step involved in working on any app - breaking down all of its features into separate components. Most companies hire full-stack developers who understand what it takes to make an application more efficient internally rather than building out something that looks great but runs like garbage (there are always exceptions).

Since most apps require users to sign up and connect through various social media platforms like Facebook or Twitter, then knowing how they work usually makes things easier. For instance, let's say you need a current user's information when logging into your site after they click a confirmation link from their email provider. You can use OAuth 2 to get access tokens from these sites without having to store passwords on your server which is a huge security risk... but this requires knowing how to code out the process too.

Just like APIs, there are different protocols involved in handling requests depending on the platform that you use - which means you'll have to learn how they work if you want to create something useful. For example, let's say you're looking for an up-to-date list of active connections when someone logs in to one of your apps - then using REST will require less development time since it has built-in support for GET/POST/PUT/DELETE requests (and retrieving data back is easier too).

The easiest way to learn these protocols is by looking at how existing apps work on a basic level. So start building a small backend script that shows user information before you move onto anything else - and once you understand the type of data that needs to be stored then think about what your app can do with it.

Types of back-end languages

When it comes to choosing a back-end language, there are several different options available depending on what your site or app needs to do. In this case, you'll want something that has built-in support for GET/POST requests so you don't have to waste time figuring out how things work from scratch.

"Why is Express the go-to framework?" If you're new to Node.js then I think that Express is a great framework to get started with since it allows easy access to basic routes and authentication methods via middleware. Granted, there's a lot more going on behind the scenes when using something like Koa - but following tutorials online will help fill in any gaps along the way!

You can download open source versions of just about every language from GitHub which is a great way to go through the motions. For example, if you wanted to see how OAuth 2 works in different languages, then all you have to do is look for them on the site and click a button...

The code it provides will be similar regardless of the platform since most of these methods are universal when handling requests - but storing data might require additional packages depending on what kind of backend language you're using. In any case, tutorials online can help fill in the gaps when debugging problems later on.

"What's the difference between complete scripting languages and compiled ones?" Once upon a time, web developers were limited to their back-end choices - which meant that PHP was usually the only viable option. But nowadays, there are several languages that you can use to build web apps without having to pay a huge upfront fee.

Node.js was one of the first compiled platforms built with network requests in mind, but Python came along afterward and added more speed along with built-in support for high traffic sites - which is why it's used by Google, Reddit, Instagram, Pinterest, Disqus, Bitly, Dropbox, YouTube, Tumblr, Flickr, and many others.

Other faster choices like Go existed before Node.js was even released (and still exist now), but PHP has become one of the fastest scripting languages out there due to how easy it is to write! And since WordPress powers around 25% of all websites on the net right now (including the one that you're on right now) then you can see why it gets a lot of attention.

Just like frameworks, most scripting languages come with their way to handle networking which means there are different designs for each one. For example, PHP uses file_get_contents(); Node.js uses HTTP requests; Python has Requests and urllib2; Ruby has open-URI, etc... so start making small scripts using these methods if you want to learn how they work in detail - but tutorials online will help fill in any gaps later on!

"What about databases? Is Oracle or SQL better?" Databases can be an important part of your back-end workflow since they store data that needs to be accessed at a later date. If you're just starting then I suggest that you use either SQLite or MongoDB since they're easy to set up and free to download - but other databases such as Redis, PostgreSQL, and MySQL exist for people who need them while others like Cassandra and DynamoDB are used by large companies to handle high volumes of traffic.

MySQL is one of the more popular choices right now for web development because it works best with PHP and has become the go-to choice for blogs and social media sites (like Facebook). But regardless of what database your app needs then there's likely a way for you to get started without having to pay anything - so find tutorials online that will help fill in any gaps later on.

"What are the best programming books?" Programming books are a great way to learn how to code in detail since they offer step-by-step instructions that you can follow along with whenever you get stuck. These days, there are lots of free web apps that anyone can use to get started without having to pay for anything - but if you want to know how things work in detail then I'd suggest buying one or two books online.

There's certainly no shortage of them out there so try searching on Amazon and see what other people think about them first before clicking the purchase button! But regardless of your choice, you'll find tutorials online which will help fill in any gaps that might come up while debugging later on.

Site rendering is done using JavaScript now, which is why you might notice that the site doesn't work as well at times!

"What's the easiest way to learn how to code?" There are lots of ways to learn how to code online for free nowadays since open-source projects like XenForo, Glastopf, Media Wiki, and WordPress offer people chances to experiment with its features without having to pay anything upfront. These projects also give new coders opportunities they otherwise wouldn't have had access to - so find popular sites like these online and see if there are any tutorials that you can use instead.

"How do I debug errors in my apps?" Debugging problems is always tough - but it gets when you know what tools your code editor comes with. For example, Sublime Text has a built-in debugger that will help you track down errors whenever your code goes wrong - but other editors like Atom and Notepad++ have ways to do it as well so take a look at them if this is the first time you're encountering an error.

"What are some good tutorials for MongoDB?" MongoDB has been used by large companies such as Soundcloud, Instagram, Adobe After Effects, and Airbnb to handle high volumes of traffic without any noticeable latency issues - which makes it one of the faster databases out there right now. The site MongoDB provides a lot of information about their services online so check it out anytime you want to know more about them!

Backend tools & technology

"What are some good tools for Python?" If you need to learn how to code in Python then PyCharm is one of the best online - but other languages like Java can be used with it as well so check out their site if you want to figure out how they work. It's also free and comes with a lot of tutorials that anyone can use!

"What are some good tools for Express?" Express is easier than other frameworks like Laravel or Symfony since it's bundled together with Node.js (which makes it easy for coders who already know JavaScript). There's an entire subreddit page dedicated to sharing information about Express, which means there's no shortage of tutorials available on the web - but if you're an absolute beginner then I'd suggest checking out their site and seeing what they offer!

"What are the best things to learn for beginners?" There's an entire subreddit page dedicated to sharing information about Express, which means there's no shortage of tutorials available on the web - but if you're an absolute beginner then I'd suggest checking out their site and seeing what they offer! If you want something simple that you can use as a starting point then Python is still one of the most commonly used languages right now since it works well with code editors. Many coders also suggest Java as well since it has a lot of resources available online too. And regardless of your choice, using open-source projects whenever possible will teach you more than any tutorial could ever do - because you're testing out a working model to see how it works and how you can improve on it!

"What are some good tools for JavaScript?" If you want a simple answer then Sublime Text is one of the best editors around right now since it has a lot of built-in features that make debugging easier. Most coders also suggest using Yeoman, which is an app used by developers to automate common tasks whenever they start new projects - but there's no shortage of other choices too so check them all out before making your final choice!

"What are some good tools for Java?" Java is still one of the most widely used languages online since a lot of companies use it for their back-end systems. VIM is one of the most popular code editors used by developers right now - and if you know enough about it then things like syntax errors will become a lot easier to debug whenever you run into them. There's also an entire subreddit page dedicated to sharing information about Java that anyone can check out anytime they want!

"What tools do coders use for C++?" C++ isn't as complicated as people think, but it does require a lot more patience since it's harder to read at times. Atom is still one of the best text editors out there right now, but other choices include Notepad++ or Sublime Text which are both free online too! Developers also suggest using StackOverflow whenever problems get tough so take advantage of that resource whenever you can!

"What are some good tools for Rust?" For any beginner looking to start coding, I'd suggest using the Atom text editor since it's free and has a lot of features that you can use. Once you get past the basics then I'd suggest checking out Visual Studio Code so you can get used to debugging through errors whenever they happen. There's also an entire subreddit page dedicated to sharing information about Rust online - which means there's no shortage of tutorials available on the web too!

"What are some good tools for PHP?" PHP isn't as complicated as people think, but it does require a lot more patience since it's harder to read at times. That being said, Atom is one of the best text editors out there right now and it's completely free to use - so check it out whenever you can! Developers also suggest using StackOverflow whenever problems get tough so take advantage of that resource whenever you can!

"What are some good code editors for Unity?" The best code editor for beginners is Atom because it has a lot of built-in features that make debugging easier. If you're an absolute beginner then I'd start with Sublime Text since it has a simple UI and lots of tutorials available online - but other choices include Visual Studio Code, Notepad++, or another similar text editor you can find online easily!

"What's the easiest way to learn HTML5?" To be honest, learning HTML5 doesn't require any tutorials (since it's just a markup language) - but there are lots of open-source projects online that you can use instead. Codecademy is still one of the best resources available to new coders, which makes it easy to start coding right away since you have step-by-step instructions that guide you! Don't expect anything fancy though because HTML5 doesn't work well with code editors like Atom or Sublime Text (which means you'll need to stick with Notepad++ for now).

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