Gain insights into developing web applications using Flask, a lightweight and easy-to-learn Python framework. Delve into techniques that make you a sought-after full-stack developer.

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This project-based course is a detailed guide to web application development using the increasingly popular Flask framework.

Flask is known for being simple, lightweight and having a small learning curve. If you've got some experience in Python, picking up Flask will be a breeze. It's got a booming job market and will put you on track to becoming an in-demand full-stack developer. What's not to love?

Flask: Develop Web Applications in Python

# Introduction
The homepage of a website can usually be found at the URL `hostname` followed by `/`, `/home`, `/index` or something self-explanatory. 

These kinds of URLs enable the users to remember the URL and access it easily. It would be unexpected if the homepage were at a random URL such as `/39283@&3911` or `/more_eggs`.


Flask allows us to use the `route()` decorator to bind a *meaningful* URL to each **view function** we create. 

# What is a view function?

In Flask, we create a function that acts as the *view*. Then, we bond it with a `route`.

```python 3
@app.route("/")
def hello():
    return "Hello World!";
```

> 📌 **Note:** In developer circles, this function and the `route` combined is commonly referred to as the **view** or just simply the **route**. We will be using these terms interchangeably.


# The `route()` decorator
The route decorator takes the following parameters:
- **`rule`**:
The **rule** represents the URL rule which is passed as a string to the decorator. 
- **`endpoint`** *(not needed)*: The **endpoint** is the name of the **view function** which is bound to the URL route. Flask assumes this parameter itself, and the developer does not need to specify it. 
- **`options`** *(optional)*: The **options** are an optional parameter.
 
> 💡 **FYI:** If you are unfamiliar with the concept of decorators, please refer to the Python docs at [PEP318](https://www.python.org/dev/peps/pep-0318/). 
# Static routing
In static routing, we specify a constant URL string as a rule to the `route()` decorator. For example in the mini-application given below, we have specified two static routes having URLs `/` and `/educative` respectively. 

> 📌 **Note:** The `rule` is a case-sensitive string. Therefore, `/educative` and `/Educative` are totally different **URLs**.

# An example using static URL routes

In this lesson, we will get to know what views are, and how they are associated with the URL routes. We will also learn how to create static routes.

Before Getting Started

Introduction to Flask

First Flask Application

Build File/Directory Explorer in Flask

Static Templates

Static Files

Dynamic Templates

Form Handling

Database

Operations on Models

Conclusion

Test a MEAN Stack Todo Application with JEST

Build an E-Learning Website Using Flask

URL Routes and Views

Introduction