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Flask is an open-source web framework for creating web applications. It’s a beginner-friendly framework that doesn’t have boilerplate code and dependencies that make coding difficult. As a result, you can easily create different projects such as web applications, single-page applications, static websites, or Restful APIs.
What’s more, Flask’s functionality is easy to extend. It has many extensions and plugins that allow engineers to easily and quickly gain new abilities for their development needs. For example, you can easily add database integration, interface, and migration tools, among many others. In addition, Flask automatically offers necessary features like routing and message handling.
This allows you to focus more on your business needs instead of having to deal with coding issues. To top it all off, Flask has extensive documentation and wide community support to help you solve any challenge you might face.
The Flask run mode activates an automatic debugger that reruns changes in the code for compilation. You can easily test code changes with its built-in debugger and unit testing tools. The platform itself is very lightweight and only provides you with the basic components you need to create web applications.
Adding database/ORM for your projects is very simple in Flask. For keeping your final application light, SQLite is the way to go. You can also use the Flask- SQLAlchemy extension for adding SQLAlchemy functionality. You can even add other databases through DBAdapters (MySQL, PostgreSQL, Oracle)
Flask was built in 2004 and it’s now a very popular open-source web framework. It offers many extensions for object-relational mapping, form validation, upload handling, and authentication protocols, among others. It has a built-in web server and request dispatcher that you can use for rapid prototyping. Many companies such as Reddit, Uber, Netflix, and LinkedIn use Flask for their development projects.
It can request dispatch through the REST API and is built upon the WSGI toolbox. It has secure cookie support for client and user sessions and is compatible with the Google app engine for authentication. It can also handle HTTP and AJAX requests.
The major issue companies face while adopting Flask is the lack of experienced developers. Since Flask is a fairly new framework, it’s difficult to find seasoned engineers who know how to handle different aspects of Flask programming. It’s easy to create simple apps through Flask but the difficulty increases when creating production projects.
Flask can sometimes have server and request handling issues. For example, if the form is submitted with the wrong input data, the application throws a runtime error. It can also have async issues while using event loops. It would take a highly proficient developer to deal with these issues.
Even if the engineer is knowledgeable about the framework, they might not know how to implement/deploy the application correctly. For example, a bad configuration in deployment can lead to web socket connection issues in Flask.
Hiring a Flask developer is a complicated process. A good Flask developer should be able to translate business requirements into industrial use cases. They should be very fluent in Python and should be able to implement Flask to create efficient, scalable solutions.
The developer should also have experience with frontend languages such as HTML, CSS, and JavaScript. They should also know about ORM, along with a solid understanding of query handling and executing. Finally, they should be competent in object-oriented programming and architecture.
Flask is one of the most refined and feature-rich frameworks for web development. Even though it’s relatively new, it’s very popular and has features such as templates and a powerful WSGI engine. It also has a rigorous unit testing library along with rich documentation. It’s very modern and easily extensible, and you can create many advanced web applications through it.
You can use Flask-Sijax to create an Ajax application through Flask. This is a Python/JQuery library that can be deployed through PyPI through an easy installation process. It uses flask_sijax decorator during setup to make Flask functions ajax-aware.
The Flask-WTF extension is used for implementing forms in Flask. It’s an easy and secure way of integrating web forms. It includes a CSRF token to protect against cross-scripting attacks and also supports ReCaptcha. It also has a file uploader that you can use for uploads.
The Flask framework allows 3 types of database connection decorators.
before_request(): This function is called before initiating a request, and no arguments are passed in them.
after_request(): This function is called after a request is made, and the response object is delivered to the client.
teardown_request(): These connections are invoked when an exception is triggered for an uncertain response. This function isn’t permitted to alter the request, and its value can be ignored if required.
Flask Python uses thread-local objects to pass data from one object to another. This method is extremely helpful as it doesn't allow concurrency and locking issues. Thread-local objects make Flask thread-safe.
Flask can build all sorts of applications, such as SPA (single page applications) API-based projects, SaaS (Software as a Service) apps, microservices, and serverless applications.
We are looking for smart and experienced Python developers with strong Flask knowledge to participate in the design, development, and support for large-scale enterprise applications. They should be passionate team players who can optimize application performance and maintain them.
They should also know about database design/development and should be able to work with frontend languages. This is an excellent opportunity for smart developers who can develop advanced Python components and work on new technologies to enhance their skills.
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