AWS Lambda vs. React (React.js) vs. Sencha

Lambda excels at event-driven, short-lived tasks, such as processing files or building simple APIs. However, it's less ideal for long-running, computationally intensive, or applications that rely on carrying the state between jobs. Cold starts and constant load can easily balloon the costs.

Incentivized

React is a JavaScript user interface construction library that works well for:

• Developing web apps with dynamic and complicated user interfaces.
• creating reusable UI elements that may be used in other applications.
• creating single-page applications with dynamic content updates that don't require a page reload.
• The Virtual DOM's effective updating mechanism allows it to handle large volumes of data updates.

React, on the other hand, might be less suitable for:

• Websites that are simple, stagnant, and have no interaction. Other libraries or simple HTML, CSS, and JavaScript may be a better fit in such circumstances.
• Web sockets may be a better choice for applications that need real-time updates, such as chat or gaming apps.
• When creating mobile apps, React Native is a better option.
• Server side rendering only, as React is designed to run on the client side.

It's great to develop business applications. Previously, we tried different technologies but we find it the most suitable for us. We also deploy a generic backend so we don't need to install anything new to implement new applications. This helps us to develop very fast and with very low effort.

Incentivized

• No provisioning required - we don't have to pay anything upfront
• Serverless deployment - it gets executed only when request comes and we pay only for the time the request is getting executed
• Integrates well with AWS CloudWatch triggers so it is easy to setup scheduled tasks like cron jobs

Incentivized

• React is fantastic for building performant user interfaces. Our web app is snappy and great for our customers.
• React has the philosophy of doing one thing and doing it well which is the view layer of the application. This makes it incredibly intuitive and flexible for developers to use.
• React has lead the way in being able to write modular and structured code. It is a drastic improvement since the days of spaghetti jQuery code.
• React has an unmatched community. The amount of tools and libraries available is fantastic, and there plenty of solutions available online for common problems.

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• It's a complete solution that has a vast array of pre built components, charts and a data-grid based solution.
• Security comes out of the box.
• It's mobile and tablet ready.
• It has a lot of support from the community so solutions are easily available
• You can add your own flavor via theme customizations and built in component extension.

Incentivized

• Developing test cases for Lambda functions can be difficult. For functions that require some sort of input it can be tough to develop the proper payload and event for a test.
• For the uninitiated, deploying functions with Infrastructure as Code tools can be a challenging undertaking.
• Logging the output of a function feels disjointed from running the function in the console. A tighter integration with operational logging would be appreciated, perhaps being able to view function logs from the Lambda console instead of having to navigate over to CloudWatch.
• Sometimes its difficult to determine the correct permissions needed for Lambda execution from other AWS services.

Incentivized

• Debugging React is challenging. Bugs in react code generate stack traces internal to React and it is often totally unclear how it relates to the code you actually wrote.
• Relating your React elements to corresponding DOM elements is difficult. The intentional separation of virtual and actual DOM also makes it difficult to map the elements to the structures in the DOM. This is partially ameliorated by the use of the React dev tool, which provides a DOM-like view of the React elements, but the tool still does not provide a direct correspondence with the DOM that is often necessary to figure out why something isn't right.
• Because JSX is React-specific and not a language feature, a special compilation process is necessary to convert JSX code to normal JS. Coming from a C++ background, compiling things doesn't bother me, but many JS developers are used to a less structured development.

Incentivized

• More default themes
• Biggest community

Incentivized

I give it a seven is usability because it's AWS. Their UI's are always clunkier than the competition and their documentation is rather cumbersome. There's SO MUCH to dig through and it's a gamble if you actually end up finding the corresponding info if it will actually help. Like I said before, going to google with a specific problem is likely a better route because AWS is quite ubiquitous and chances are you're not the first to encounter the problem. That being said, using SAM (Serverless application model) and it's SAM Local environment makes running local instances of your Lambdas in dev environments painless and quite fun. Using Nodejs + Lambda + SAM Local + VS Code debugger = AWESOME.

Incentivized

React is just a bit of a different animal. I was avoiding it for the longest time. I thought for sure I would land on Vue or something else with a more approachable and familiar appearance. But after taking an online course in React, I started realize what people were raving about (and complaining about) and decided to implement it at our office for one of our products.

Incentivized

Amazon consistently provides comprehensive and easy-to-parse documentation of all AWS features and services. Most development team members find what they need with a quick internet search of the AWS documentation available online. If you need advanced support, though, you might need to engage an AWS engineer, and that could be an unexpected (or unwelcome) expense.

Incentivized

Since it's open-source and very popular, the community support for React and related tools and libraries is excellent. There are a lot of people using the same tools, and so issues tend to get fixed quickly and "recipes" are easy to come by. And since it's backed by Facebook, they have a dedicated engineering team working on the progression of React.

Incentivized

AWS Lambda is good for short running functions, and ideally in response to events within AWS. Google App Engine is a more robust environment which can have complex code running for long periods of time, and across more than one instance of hardware. Google App Engine allows for both front-end and back-end infrastructure, while AWS Lambda is only for small back-end functions

Incentivized

While this is a widely contested debate with various blog posts and benchmarks all over the place, its really a personal choice to determine what works for the team. Coming from a Angular 1.x background, I decided to try a new framework when Angular 2.x was announced and at that time React is gaining popularity and Vue hasn't taken off yet. Compared to Angular 1.x and Vue (hybrid of React and Angular) that split the logic from the html templates, I loved the way React breaks code into components using the jsx syntax. In my mind, this allows for cleaner components and easier maintenance

Incentivized

Each of the above platforms offer a specific solution. Sencha provides a complete solution that is a library of components as well as a framework to modularize your application so that it's better manageable. Once you get over the learning curve of the whole technology it's a breeze to implement new functionality within the application. We have an aggressive client who comes to us every other day with some new requirement, and sencha has been able to answer all of those without issues.

Incentivized

• Positive - Only paying for when code is run, unlike virtual machines where you pay always regardless of processing power usage.
• Positive - Scalability and accommodating larger amounts of demand is much cheaper. Instead of scaling up virtual machines and increasing the prices you pay for that, you are just increasing the number of times your lambda function is run.
• Negative - Debugging/troubleshooting, and developing for lambda functions take a bit more time to get used to, and migrating code from virtual machines and normal processes to Lambda functions can take a bit of time.

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• Our web applications now run much faster because the whole page doesn't reload
• We spend less time developing UI components because a lot of them are readily available on NPM
• We don't have to optimize apps for multiple browsers since React natively supports it.

Incentivized

• Excellent applications
• Very good performance
• Not very used, and developers don't like it at the beginning

Incentivized