It depends.

From times to times I asked or was asked that same question. Technology aside, it's important to consider the skills and expertise that the dev team has. Whether you use language A,B or C or framework X,Y and Z, if your team has a strong background and experience with something make it count too.

I would recommend Go simply because as you mentioned, it's super light. No need to bring in the whole .NET suite to get a simple REST API up and running. Even if your API is a bit complex, Go should be able to handle it.

I started out with C# and .NET and I loved it. In my opinion, it was the perfect way to start learning the fundamentals of software development however I always felt like I was at a disadvantage when I was doing .NET development. Granted, .NET Core is now open-source and cross-platform, but I moved to Node.js simply because it is incredibly popular. I never thought I'd learn to love JavaScript it the way I did with C#, but I learned to love it pretty quickly, especially once I started using TypeScript. You get all of the benefits of C# and JavaScript all in one. If you've built a REST API with Python/Flask/Django, you'll be able to learn Node.js/Express/TypeScript well enough to migrate your API very fast and it's incredibly easy to host for free on any number of services.

I'm new to Go, I've got very little experience but the 'feel' of Go, isn't like Python in my opinion. Go has a pretty steep learning curve, much steeper than C# in my opinion. So if you are willing to consider Node/Express/TypeScript, I think you may really like it. If you're picking between Go and C#, I'd go for C# as of today, but once I am more comfortable with Go (which I anticipate being a slow process) I may change my mind.

At this moment in time, in late 2020- Node/Express/TypeScript feels like the obvious choice to me as a former C# developer.

The best language for you is the one that you know best!

Its a bit of a guess, but from your question and the difficulties you have with Python it seems to me the problem you describe is the manifestation of a bad design/architecture/code quality. These are not the problems of a language itself!

The experience you gained over the past years with your current programming language will outmatch any benefits of another language that you start from zero.

Because in the end of the day languages aren't all that different when it comes to fullfil the same task, it's more the tools, framework and ecosystem for a particular problem that make a difference.

I worked with Java, C#, Go and recently in Phyton, and I would choose Phyton over Go for WebApps, even I like compiled languages more. Go is a very simple language, I would even say maybe too simple. I can't stand all those go boilerplate if err checks, the broken filesystem, the date/time mess and many more things that aren't actually relevant for business application at all. Go has its advantages but not for WebApps.

Keep the lang and improve your skills and architecture you will benifit more from it than from a new language.

I recommend Go for backend. It's younger than C# doesn't mean it's not mature. It's already mature enough to be run on production. You can see there are already many companies in the world adopting Go as their backend business logic or tooling. I can name a few like Github, Shopify, uber, twitch, and many more. It's easier learning curve, low entry barrier, better performance than C#, better memory consumption than C#, since there's no VM/runtime needed. It's suitable for large scale system and large codebase for readibility and long maintainability. It's simpler than C# since no class, inheritance(this can cause hard to maintain software), exception, etc. You can still implement OO way in Go without those feature. Simple file structure, only main files and package files. It compiles to single binary and easy to deploy and work around it, unlike C# who compiled to IL and you need to wrap all those IL files to be run inside separated web server(even .Net/.Net Core platform provide built-in web server). For libs, don't worry, there are many open source libs you will found on Github and already adopted by many companies. Go is employed in personal, startup, even corporate level.

I suggest Go because it has a simple and clean ecosystem. The language is simple. You don’t need complex configs or installs either. You’ll be up and running very quickly. It doesn’t have as much as .NET but its standard library is more than sufficient for RESTful APIs. Concurrency is much, much easier too.

C# I’d definitely recommend later on. The .NET framework, especially core, is extremely powerful and there’s little you can’t build with it. Go won’t take you long to be productive with.

The database your are going to connect and the needed libraries could decide. Because both are awesome languages.

I have some systems on production using both languages. I tend to use golang if the API is small or medium size, but if I am going to build a large system definitively I use c#(asp netcore).

If you want to stick with python you may want to consider Fastapi. It uses Pydantic to give you strongly typed models and validation. It generates openapi docs for you out of the box. They have good documentation as well and they claim it is really fast.

I would recommend C#, particularly Simplify.Web web-framework. C# is easy to start with (especially .NET Core). Simplify.Web is also easy to start with, no extra setup required for simple API, but on the other hand you have power of C# and full control over your API with ability to extend.

Theres a logt going on in the dotnet world. I currently do all my Rest APIs with asp.net core.

The Setup is very easy as the .net web sdk provides with a lot features you don't want to keep yourself concerned with. You can integrate Swagger with little effort.

Spring Boot is the lightweight of the Spring framework. I used the Spring framework before, and I fall in love with the Spring Boot. I also use .NET core, but still, I like Spring boot the best. If you have time then you should experience both. You are more than halfway in gaining experience. My suggestion is always to try to learn many things as you can.

I see what you're going through and I extend my hands to you. I felt the same frustration after almost 1.5 years of working with Django and Node.js in the parallel. And since the last one year, I've transitioned into Spring Boot. I think its fair to say, that its quite different when you're going from Django background as a framework, but otherwise. I think it's one of the robust ones out there. Scalability is seamless and you get most of the things out of the box or easily supported by dev dependencies. You should definitely check it out! :)

Hi Eva, As you have solid experience with Spring already, you should jump into freelancing with that. It would be quite stressful to start freelancing with a tech stack you don't know well. Then in the background you can keep learning/practicing an alternative and switch over when you are confident enough (eg. 0.5-1 year later). I think you should learn Laravel as you already like it and find it easier. Express has better performance but that is not required for most of the small freelancer projects.

I think Patrik and Alex are right: if you're comfortable with Spring Boot already, you'll be more productive right from the start.

If you wish to learn something else besides, both Laravel and Express are good choices. They aren't in the same category of frameworks: Laravel is an all-in-one solution, while Express is more like "build your own stack from different parts". Which implies that you can use whatever you want as a database engine: MySQL or PostgreSQL are perfectly valid choices (in my school, we teach Express with MySQL, because SQL is still a big thing here in France, and a sought-after skill). You can use Sequelize or TypeORM which support all major SQL DBMS.

Express is widely used, but if you're seeking the JavaScript equivalent of Spring Boot or Laravel, you probably want to look at NestJS. The only potential downside is that it's still young, maintained by a small commmunity, compared to those behind Spring Boot and Laravel.

Bottom line: using a stack tech, that you enjoy and are comfortable with, matters. Spring Boot + Vue.js seem perfectly fine to me. But do forget jQuery if you're using Vue.js, React or Angular, because it will definitely bring more harm than good!

Looking at current technological trends and rise of JavaScript, you cannot go wrong with JavaScript. - There's an abundance of libraries to get most things done - You can use JavaScript for both the frontend and the backend - this allows you potentially share your logic/models/code across both stacks - A dynamic/interpreted language such as JavaScript is great for serverless (there's somewhat of a trend towards serverless aswell - especially in modern projects) - If you like/need static typing, you can always migrate seemlessly to Typescript - VueJS is a lightweight framework (compared to Angular), it has more GitHub stars and most would argue it's easier to work with (beginner friendly). Additionally most modern webapps do not use JQuery anymore (even though a lot of legacy projects continue to do so). You don't need JQuery if you use Vue/Angular/React

Additionally it doesn't seem like performance is a hugely important metric in your scenario, so JavaScript would suffice.

Note: These are all my opinions and what I've seen in the current market when recently searching for jobs.

I would definitely recommend you to go with Spring Boot + AngularJS + jQuery. Reasons: 1- You have an experience of 4 years with the above-mentioned stack. 2- As you mentioned that you wish to work as a freelancer, your stack is the perfect one for finding good bids with a little less effort than that of PHP + Laravel + Vue.js.

Hi as someone who employs and select developers i agree with a lot almost sayed but think of what are your strengths and where you are or better where your customers are. If you search for big enterprise projects spring boot is ok sql is must and html css as well. if you want to go more to internet related companies (like airbnb, what sup, facebook ) or similar (and not asia) then react is a must node js as well. The libraries tools etc which are used you need to adopt fast. If asia then VUE is a must. but if you like small projects with individuals or like wordpress or similar then you can learn php but i think in 2020 it is wasted time. Same for python in that area. and i also see that we often have problem that developer at least must understand docker docker compose better as it works with kubernetes ,.. just my 5 cents

in order to stay employable, I'd work with something you can deliver with. if I'd be your client and you'd have to get comfortable with a new stack, I would 100% not pay you for this startup time. learn new stuff in your free-time. or set aside time for learning.

that said, if you want to reorientate, php (even though i personally hate it) is extremely wide spread. but so are java and nodejs. so I'm not a fan of that argument... i recommend building something in each language, and see what you enjoy more. for me it was nodejs, because I already enjoy frontend JavaScript, and appreciate the ecosystem and community.

regarding expressjs and mongodb: yes, it is a goto solution for a lot of tutorials, because its as simple as it gets. especially wben using something like monk. BUT if you want to use mysql, posgres or similar, check out TypeORM, Prism or another ORM-like solution. you can use any db with express, and there's plenty of abstraction layers, which make your life easier. but i noticed that expressjs does a lot less "holding hands" compared to .net core (c#), or laravel (php). can be a pro or a con.

As a developer myself, I would recommend you not to restrict yourself to JAVA, PHP or any other language. New Tools/languages keep coming every day. If you do plan to move to freelancing. PHP has a lot of options in the freelance space and a lot of competition too.

Learning PHP is as simple as learning any other language. It depends merely on your interest.

Personally if you can code, you should not restrict yourself. I have had to code in many languages, PHP, Perl, shell script, Python, Java, Javascript, Ruby etc... I would keep your developing skills and logic, algorithms etc.. and increase your knowledge and experience in the different languages.

I agree with you JAVA is a lot more time consuming. But it also has its enterprise level scope.

At the same time learning a new language should not be a barrier for you to stop exploring what's out there and keeping your skills up to date. Learning new technologies should be your primary focus and getting project out of your stack helps you build a good reputation.

There are many options for you to pursue. Having an open mindset will help you move forward. If you look to learn now, you are setting yourself up for a brighter future.

I like fullstack freelancers who stacks are clean as one of below

1. PHP (laravel ) + Jquery + Bootstrap

2. Python(Django) + Angular JS or VueJS

3. NODEJS + REACTJS

Please, try to work with your comfortable stack, here is some recommendation

Hey There, I would recommend going fullstack javascript since you already have experience with javascript on the front end it would be very easy to pickup node and express js. You can use sql with node and express if you please, but mongo is pretty easy to get going with.

NestJS is an excellent framework (they both are). I would say the fact that you're working with Angular makes NestJS a great match, unless you're splitting front and back end between developers. But even in that case I would still go with NestJS for a new project.

Regarding the single threading point, take a look at PM2 which helps to run Node in multiple processes (we use it with NestJS) https://pm2.keymetrics.io/docs/usage/cluster-mode/

Also regarding web server performance in general this is an interesting post showing how Node with outperform Java in a web situation (be careful though, best to check a few posts to make sure these aren't totally biased benchmarks!): https://www.tandemseven.com/blog/performance-java-vs-node/

Node.js has only 1 real thread per process; Java JIT will mostly run faster than JS one; So if it happens to be not only I/O... Why do you need most popular, not simply popular? Does Node.js have tech advantages?

I'll preface this by saying I haven't ever done work on the Microsoft stack, so take this with a grain of salt.

Community support: Java tends to have a more active community (and much more diverse universe of new open source projects) than .Net (related to below).

Difficulty level: I'd say the Java/Spring stack is more difficult because Java developers tend to use more community projects and have to know which ones to choose in which circumstances (e.g. what logging framework to use? What database connection pooling library to use? What testing framework to use). That being said, most decisions you have to make have choices that are vastly more popular than others. My impression is that .NET guys use stuff from the standard library almost exclusively. If it's not provided there, it's a problem they never thought to solve or maybe write their own (usually the former).

Career prospects: I'll get hate for this probably, but Java/Spring has more jobs than .Net. .NET Core even more so because it's new. Most .NET jobs out there are going to be not Core, and not on anything other than Windows. LinkedIn search for jobs in United States shows 97,103 for Java and 36,448 for C#. That's not to say some individual city might not have more .NET than Java, but by and large Java is bigger. Also, .NET is not dying at the same pace as say Ruby on Rails (sorry Rails fans). I'd say it's ticking very slowly lower, maybe even holding steady. I wouldn't say you're screwed career-wise if you choose .NET. C# is also pretty similar to Java from what I've seen, and I know professionals that have transitioned to Java (though interestingly, I don't know any that did the reverse). Several companies have basically no .NET footprint, for example, Amazon, Google, Facebook, LinkedIn, Twitter all have Java, but basically no C#.

Specialized fields: Neither Spring or .Net are going to be a thing in a field like data science. That's exclusively Python (some R) for the most part. The only exception being that there is some Java in Hadoop, and Scala in Spark (which runs on the JVM). But I think those are generally more for data products being created, and not data science work. I'm also under the impression this is increasingly less the case than historically. Some other specialties might make Java useful, for example Android development.

In short, Java is the COBOL of the modern enterprise (which is both a good and bad thing). I recommend it to anyone over .NET, but not for technical reasons. It's for reasons related to the questions you asked. There are actually reasons I think CLR and C# are actually better from a technical perspective than Java (unsurprisingly, since they had the benefit of hindsight). But that's not what you were asking about...

Spring boot helps you creating microservices in hours, not days and there is a very active community around it with amazing integrations. Check one of the tutorials maybe. At least here in Germany, the job market will be better for Spring Boot as well, there are a lot more companies using Java then C#.

ASP.NET Core is pretty new while spring boot is very old but with a different name. Spring boot is just a pack of spring packages which make your life easier. I also believe that java community is way stronger than c# community... You can do your job in both frameworks and it's up to you what you choose after-all you're going to work on the project/lead it ... but whatever you choose.. after a few days of investment stick with your decision because in both frameworks you'll encounter challenges :)

I’ll echo what others have said here with a few twists.

I have experience with both platforms including Micronaut, a relatively new kid on the block. It all depends on your near term goal. If it is to make money, sure Java jobs pay more generally because there is more hassles when dealing with the entire ecosystem. Like someone said earlier, you have to make a decision at almost every stage of the development cycle from the IDE, dependency resolution framework, logging, serialization, microservice framework etc. There is just too much choice which some may argue is an advantage while others may argue is a distraction and productivity killer. At the end of the day you can build solid systems with both frameworks.

Coming to ASP Core, yes I also agree that options are more streamlined. You’ll be using Visual Studio or Visual Studio code. For dependency management, you’ll be using Nuget. But I disagree with one of the comments above about the lack of choice. In some aspects .NET actually has more choice believe it or not for example choice of ORM. There is entity framework, nhibernate, dapper etc. For J2ee, hibernate reigns supreme although you have JPA. For dependency injection you have many IoC containers like unity, castle Windsor in .NET while you have Guice and maybe a Spring based implementation.

Also C# is technically a better language that Java. That’s not questionable as has also been stated above. Many things are done right obviously by avoiding some of the mistakes made in the underlying architecture surrounding the Java programming language. That’s why Microsoft created c# to begin with. The language is a lot cleaner and allows you to focus on learning core principles and nail down fundamental OO with emphasis on good design. I find too many distractions in the Java ecosystem which takes me away from understanding the core problem I am trying to solve.

So as you can this is not an easy decision and as someone has stated there’s work to do regardless of what technology choice you make.

If your sole purpose is to make a higher base salary, sure pick Spring Boot. If you want to quickly deliver something and iterate, pick ASP Core. I personally use c# for all private projects and proving concepts even though my employer is a Java shop. It allows me to stay focused on solving the problem and not constantly wrestle with issues such as Gradle dependency resolution glitches in IntelliJ.

Given that you can transfer skills from .NET to J2ee I recommend guys to pick up ASP get a couple of services to get a feel web development as you can still get jobs in Java even with that experience. Companies don’t care these days. In fact a lot of companies are going to Go so there’s that too.

Depends on your immediate term goal.

Spring is generally more an enterprise solution, while I see Django being more startup oriented. Django is lightweight and fast (development time, not runtime!). Spring seems to have more focus on microservice architecture than django, if that matters to you at all. Starting your project in Django, it automatically creates a backend 'admin panel' for you to use and customize. You will not find this in the more serious Spring Boot.

Though Java is a strong language and basically the first language to be used in Mobile Development (Android), the framework Spring Boot is not as modern as the Django framework which is based on one of the most popular languages today - Python. Moreover the Python language is far more simpler in syntax and just as powerful as Java. However, Java has scaled up it's performance and the Spring Boot framework can support dynamic web development as well as android development. Whichever way you choose to go, there will be no regrets - trust me.

It's probably worth investing some time for your team to learn Node.js. There's very little overhead, especially with a framework like ExpressJS, so if your team is familiar with JavaScript it should be a quick process.

It handles I/O really well out of the box, and has a strong community with great open source libraries. Since you're using React on the front end, there's also some benefit to being able to use JavaScript throughout your stack.

Currently, I have decided to use Python and JavaScript (especially React and Node.js) for any of my projects. Well, I have used Python with Django for a lot of things, and I would certainly recommend Django to anyone, due to its high secure authentication and authorization inbuilt system, a ready to use admin platform, template tags, and many more. Well, I guess that you would like to use Python to create the backend of your application, an API, and React Native for the frontend. Python and JavaScript (React) are on the trend these days and have a huge community, so there are many resources, tutorials, great documentation. I have not really heard anyone using Flutter and Go for applications these days, so I would not recommend it to you, it would make your life much more difficult.

Hope that helps, and good luck with your project!

I'm typically agnostic when it comes to picking languages. Whatever gets the job done, but, in this case, to figure out what's involved with what you want to do, it's going to be much more than just picking programming languages for your client and backend interfaces.

So, I'm recommending you use Flutter+Firebase as a way to figure out what you need to get done. It supports both iOS and Android out of the box, introduces you to a bunch of components you will need to think about in the future (whether you stick with Firebase or not), and the key here, is that there are tons of articles, youtube videos, and other courses you can take to pick it up pretty quickly. You could even clone an Instagram knockoff from github. Guess what else, it's all free. You might not need to worry as much about the backend since there are client libraries for Flutter/Dart for Firebase.

Some might have different opinions, and like I said, I'm usually agnostic, but in this case, you have a lot to consider. Where are you going to store the data? Are people going to need to login? Will there but customized settings the will save even if I close the app? Yeah, that's just a few questions.

Those are just a few. Lots to consider, so if you want to get something in your hand as soon as possible, try a search for flutter + firebase + chat + Instagram or something like that and have a look.

If this is for learning about how to design the system, then pick the tools are you are confortable with.

Often times, I get stuck picking the tools (and trying to learn about them) vs actually trying to design the system itself.

If you are familiar with React (check out Expo) and Django then I would recommend going with that.

For deploying your backend, I would go with a provider like https://zeit.co/ that automates a whole bunch of deployment steps with their cli tools that you might have to do with AWS.

The above listed tools will do the job, you just need to figure out your architecture(e.g models). How they will all connect. Then you can use a tool you are comfortable with to implement them.

What you need to take a look at is Apache OpenMeetings. It already does what you want, it is open source and well documented and only requires that you design the UI and plumbing required to serve you application.

Let's select right tool you feel you are good at. And selecting tools are used by large community to solve your stuck if encounter

I've worked with all three of these languages and also with Java developers converting to these languages and far and away Go is the easier one to convert to. With the improved cold-start times and the ease of conversion for a Java developer, it is a no-brainer for me.

The hardest part of the conversion though is going to be the lack of traditional Classes so you have to be mindful of that, but Go Structs and interfaces tend to make up for what is lost there.

Full Disclosure: I'm a 95% Go convert (from Python) at this point in time.

Although I am primarily a Javascript developer myself, I used Go to build AWS lambda in a similar scenario to yours. AWS libraries felt better integrated on the Go side, I believe due to the language itself (e.g. how JSON objects are handled in go). Besides that performance of Go is much superior. But on the cons side; community is far smaller around Go, compared to Javascript. That is easy notice if you look at repos of community-maintained libraries for Go. That can feel a bit unreliable.

Go would provide the easiest transition for Java programmers -- its IDE/tooling is second to none (just install Goland) and the deploy/distribution story is extremely clean and lends itself to work well in lambda: single, static binaries with quick startup. No need to set up a full environment or package dependencies on your lambda AMIs, just copy a file.

I was initially going to suggest JavaScript due to the smaller size needs of AWS Lambdas code and the larger range of libraries and community available (and to avoid Python for this). But I have to agree with the recommendations and rationale of @ayildirim above and I think you should choose any reasonable language that is low-overhead, fast startup, and best supported by AWS Lambda, and that is probably Go. I don't think you are likely to go wrong with that, while you can potentially with the others.

So I'd agree, on the strength of AWS Lambda support and the solid performance of Go, it seems like your best choice here for Lambdas (and I'm going to need to consider that myself going forward... pardon the pun).

If you want to prioritise language familiarity, JavaScript is more like Java than the other choices; and it can be optimised to run very fast. However if you need really fast cold-start times, you can't beat Go since it's compiled. There are other things to consider, such as the massive amount of community packages and help/documentation in the JavaScript ecosystem. Go is newer but seems to be quite popular if you need something that runs fast in a single binary.

I've picked Node.js here but honestly it's a toss up between that and Go around this. It really depends on your background and skillset around "get something going fast" for one of these languages. Based on not knowing that I've suggested Node because it can be easier to prototype quickly and built right is performant enough. The scaffolding provided around Node.js services (Koa, Restify, NestJS) means you can get up and running pretty easily. It's important to note that the tooling surrounding this is good also, such as tracing, metrics et al (important when you're building production ready services).

You'll get more scalability and perf from go, but balancing them out I would say that you'll get pretty far with a well built Node.JS service (our entire site with over 1.5k requests/m scales easily and holds it's own with 4 pods in production.

Without knowing the scale you are building for and the systems you are using around it it's hard to say for certain this is the right route.