FastAPI VS Onsen UI

Compare FastAPI VS Onsen UI and see what are their differences

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FastAPI

FastAPI is an Open Source, modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

Onsen UI

HTML5 Hybrid Mobile App UI Framework - work with Angular, React, Vue, Meteor & pure JavaScript. Material & Flat design.

Landing page //
2023-05-14

Landing page //
2023-01-21

FastAPI

Website: fastapi.tiangolo.com
$ Details: free
Startup details
Country: Colombia

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Onsen UI

Website: onsen.io
$ Details

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FastAPI features and specs

High Performance
Built on Starlette and Pydantic, FastAPI is one of the fastest frameworks for Python, providing high performance due to its asynchronous request handling.
Automatic Interactive API Documentation
FastAPI automatically generates interactive API documentation via Swagger UI and ReDoc, which are very helpful for development and testing.
Type Checking and Validation
With Pydantic models and Python type hints, FastAPI provides automatic data validation and type checking, reducing the chance of runtime errors.
Ease of Use
Its syntax and design make it easy to learn for Python developers, offering a smooth development experience while reducing boilerplate code.
Asynchronous Support
FastAPI supports asynchronous programming, allowing for better performance for I/O-bound operations, making it optimal for handling many simultaneous connections.
Extensive Documentation
It has comprehensive and well-structured documentation, which is very useful for both beginners and advanced users.
Community and Ecosystem
FastAPI has a growing community and ecosystem, with many plugins and integrations available to extend its functionality.

Possible disadvantages of FastAPI

Learning Curve for Asynchronous Programming
Although FastAPI itself is easy to learn, grasping the concepts of asynchronous programming in Python can be challenging for beginners.
Complex Dependencies
Using Pydantic for advanced validation can make the request models complex, requiring a deeper understanding of Pydantic and its functionalities.
Early Stage Libraries
Some third-party libraries and extensions specifically tailored for FastAPI might still be in early stages of development and lack long-term stability.
Limited Real-World Examples
Although the documentation is extensive, there might be limited real-world examples and case studies readily available compared to more mature frameworks.
Deployment Complexity
Deploying FastAPI applications might be more complex in comparison to traditional synchronous frameworks, mainly due to the need for asynchronous server setups.

Onsen UI features and specs

Cross-Platform Compatibility
Onsen UI supports iOS, Android, and Windows platforms, allowing developers to create apps that work seamlessly across multiple operating systems using a single codebase.
Easy to Learn
Onsen UI provides clear documentation and an extensive set of components, making it easy for developers, including those who are new to mobile development, to get started quickly.
Performance
Onsen UI is known for its performance, providing smooth animations and transitions on both mobile and desktop devices. It's optimized to work well even on less powerful devices.
Integration with Popular Frameworks
Onsen UI can be seamlessly integrated with popular front-end frameworks like Angular, React, and Vue.js, enhancing its versatility and allowing developers to use their framework of choice.
Customizability
The platform offers a high level of customizability, letting developers create unique and tailored user experiences by extending and modifying existing components.
Active Community
Onsen UI has a robust community and active support, which means developers can readily find solutions to problems, share knowledge, and get updates on new features.
Built-in Theme Support
Onsen UI provides built-in themes that automatically change the look and feel of the application to match the target platform, enhancing user experience by providing a native look and feel.

Possible disadvantages of Onsen UI

Dependency on Groovy
Some features in Onsen UI depend on the Monaca CLI which uses Groovy, adding an additional technology layer that developers might need to learn.
Limited Plugin Ecosystem
Compared to other frameworks like React Native or Flutter, Onsen UI has a relatively limited range of third-party plugins, which can restrict the functionality or require custom development for certain features.
Learning Curve for Advanced Customization
While basic usage is straightforward, advanced customization may have a steeper learning curve, particularly for developers not familiar with mobile-first design principles.
Less Popularity
Onsen UI is less popular compared to frameworks like React Native and Flutter, which can result in fewer resources, tutorials, and community support.
Debugging Complexity
Debugging mobile-specific issues can be more involved when using a hybrid framework like Onsen UI compared to using native development tools.
Dependency Management
Managing dependencies in a hybrid environment can sometimes be challenging, especially when dealing with different versions of libraries and platform-specific issues.

Analysis of FastAPI

Overall verdict

FastAPI is widely regarded as a good choice, especially for applications that require high performance, scalability, and modern Python features. It is suitable for both simple and complex projects, making it a versatile tool in the web development ecosystem.

Why this product is good

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.7+ based on standard Python type hints. It is built on top of Starlette for web framework capabilities and Pydantic for data validation and settings management. FastAPI is known for its excellent performance, automatic generation of interactive API documentation (with Swagger and Redoc), and support for asynchronous programming. Developers appreciate its ease of use, detailed documentation, and helpful error messages.

Recommended for

Developers building RESTful APIs
Teams looking for a high-performance ASGI-based web framework
Projects that require asynchronous programming capabilities
Applications needing automatic generation of interactive API documentation
Python developers who prefer utilizing type hints for code clarity and validation

Analysis of Onsen UI

Overall verdict

Yes, Onsen UI is considered a good choice for developers looking to build mobile applications quickly and efficiently. It offers a robust set of features and adheres to native design guidelines, making it a reliable framework for creating high-quality mobile and web apps.

Why this product is good

Onsen UI is a popular open-source framework for developing hybrid and mobile web apps. It is known for its ease of use, comprehensive documentation, and ability to integrate seamlessly with other frameworks like Angular and React. With a strong emphasis on performance and user experience, Onsen UI provides a wide range of components that are specifically optimized for mobile devices.

Recommended for

Developers looking for a framework that supports hybrid app development.
Teams looking to build cross-platform mobile applications with a native look and feel.
Projects that require integration with popular frameworks like Angular, Vue.js, or React.
Developers who value detailed documentation and a supportive community.

FastAPI videos

+ Add

FastAPI from the ground up

Onsen UI videos

+ Add

Onsen UI - Introduction

Category Popularity

0-100% (relative to FastAPI and Onsen UI)

Onsen UI

Developer Tools

86 86%

Developer Tools

14% 14

Development Tools

0 0%

Development Tools

100% 100

API Tools

100 100%

API Tools

0% 0

Web Frameworks

100 100%

Web Frameworks

0% 0

User comments

Share your experience with using FastAPI and Onsen UI. For example, how are they different and which one is better?

Reviews

These are some of the external sources and on-site user reviews we've used to compare FastAPI and Onsen UI

FastAPI Reviews

Kurslog team

· Working at Kurslog · 5 months ago

When our backend team needs to build services for data parsing, aggregators, or high-load APIs, FastAPI is our absolute go-to choice. It completely lives up to its name-development speed is outstanding.

The combination of Pydantic for data validation and built-in async support keeps our shared codebase clean, strictly typed, and reliable. But the biggest highlight for our cross-functional team is the automatic generation of interactive OpenAPI (Swagger) documentation. Our frontend and mobile developers no longer have to wait for backend engineers to manually update API docs; everything stays perfectly in sync automatically. It has drastically improved our team's communication and delivery speed.

Competitors: Django, Flask, ExpressJS, Nest.js, Spring Boot

Pros: Blazing fast performance (on par with nodejs and go)|Native asynchronous support out of the box|Automatic, interactive documentation generation (swagger/redoc)|Strict typing and data validation with pydantic

Cons: Smaller plug-and-play ecosystem compared to older frameworks like django|Requires our architects to design the project structure and directory layout from scratch

The 20 Best Laravel Alternatives for Web Development

FastAPI, as the name hints, is a swift mover. Built on Starlette, it’s all about speed and performance with Python. Crafting API masterpieces at the speed of light, now that’s something.

Source: tms-outsource.com

25 Python Frameworks to Master

Since its release in 2018, it has rapidly gained popularity due to its great performance and simplicity. In fact, according to PyPi Stats, FastAPI has over 9 million monthly downloads, surpassing even full-stack frameworks like Django.

Source: kinsta.com

3 Web Frameworks to Use With Python

myapp/ is the main directory of your FastAPI application. It includes all the other files and directories needed for the application.static/ is a directory used to store static assets such as CSS, JavaScript, and image files. These assets are served directly by the web server and are typically used to add visual styling and interactivity to the application.css/, img/, js/...

Source: www.stratascratch.com

Best Alternatives to FastAPI App Free for Windows (2021)

FastAPI Alternative – So many alternatives app to FastAPI that you must to know out there. And, looking for an ideal software was not easy matter. Lucky you, at this page you can find the best replacement app for FastAPI. So what you are waiting for, get the latest FastAPI alternative app for Windows 10 from this page.

Source: alternativetoapp.com

Top 5 Back-End Frameworks to Consider for Web Development in 2021

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints. It is fast when compared to other major Python frameworks like Flask and Django. FastAPI gives great flexibility to fulfill businesses’ API needs in today’s evolving world.

Source: www.fissionlabs.com

Onsen UI Reviews

Top React component libraries (2021 edition)

Originally based on AngularJS with support for jQuery, Onsen UI offers an adapted framework for React. Onsen was developed by Monaca Software which specializes in mobile app development and is based out of Japan. Based on the mobile-first origin, the Onsen UI framework is well suited for building mobile apps.

Source: retool.com

Top JavaScript Frameworks For Mobile App Development

OnSen UI is a powerful, free, opensource mobile application JavaScript framework that is bundled up with ready to implement features with a native nature. It is apt for building hybrid apps with Cordova and progressive web apps.There are 3 layers attached to it — CSS components, framework bindings, and web components.

Source: medium.com

Comparing popular React component libraries

Onsen UI is a bit different from the previous libraries we’ve examined. Because it’s built with a mobile-first design in mind, Onsen UI is mostly used to build cross-platform mobile web apps.

Source: blog.logrocket.com

10 React Native Alternatives

Most importantly, the Onsen UI ecosystem has a toolkit known as Monaca that helps in developing hybrid mobile apps.

Source: www.dunebook.com

20 Best Front-End Frameworks For Bootstrap Alternative

Onsen UI is a hybrid framework that works well with PhoneGap and Cordova. With AngularJS, jQuery, Font Awesome and TopCoat as the foundation, Onsen UI can be a promising tools for developing amazing mobile apps. Onsen UI can help you build mobile apps easily using the concept of Web Components.

Source: beebom.com

Social recommendations and mentions

Based on our record, FastAPI seems to be a lot more popular than Onsen UI. While we know about 312 links to FastAPI, we've tracked only 2 mentions of Onsen UI. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

FastAPI mentions (312)

I Built My First Machine Learning API — Here's Everything I Learned
I used FastAPI, a Python framework built specifically for creating APIs quickly, with automatic validation and interactive documentation baked in. - Source: dev.to / 27 days ago
Shipping Sovereign SDK: Cryptographic Forensic Receipts and the End of the AI "Prose Tax"
The Sovereign SDK is a Python-native framework designed to minimize prose overhead while generating ironclad, cryptographic execution receipts for AI agents, complete with drop-in FastAPI/Starlette ASGI middleware. - Source: dev.to / 4 months ago
5-Minute AI Jobs and Closed Tabs — Why We Built Replay-Then-Tail SSE
We had a feature in production where a single user request could run for five-plus minutes — fetch documents, chunk them, hit an LLM per chunk, synthesize a final answer. We did the obvious thing first: a FastAPI handler that ran the pipeline and streamed progress back to the browser over Server-Sent Events. - Source: dev.to / 4 months ago
FastAPI With LangChain and MongoDB
FastAPI is a Python framework for building APIs quickly, efficiently, and with very little code. - Source: dev.to / 5 months ago
I Built A " CrowdSense AI " : A Scalable, Context-Aware Platform for Smart Stadiums
Backend: Python-based FastAPI for its asynchronous I/O capabilities and rapid JSON serialization. - Source: dev.to / 5 months ago

Onsen UI mentions (2)

12 Frameworks for Hybrid Mobile Apps
Onsen UI has quickly grown in adoption since its release in 2013. It is an open-source framework under the Apache v2 license. Onsen UI is framework-agnostic UI components, you can choose and switch among the frameworks: AngularJS, Angular, React, and Vue.js or go pure JavaScript to build your hybrid apps. - Source: dev.to / about 4 years ago
Why are HTML attributes set differently into the DOM?
For one of our web applications, we used the Onsen UI js framework with its React support library. Source: over 4 years ago