### ![](https://ga-dash.s3.amazonaws.com/production/assets/logo-9f88ae6c9c3871690e33280fcf557f33.png) Python Programming: Flask

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# Flask: Final Practice Problems

In this homework, you're going to write code for a few problems.

You will practice these programming concepts we've covered in class:

* Rendering templates.
* Creating an API.
* Making `GET`/`POST` requests.

------------

## Deliverables

For each of the challenges listed below, you will create a new `.py` file and write code to solve the problem. For example, you would create `problem1.py` with your solution code to the first problem. Run the file from the command line to check your work.

*Reminder: On your laptop, you can run the file from your command line with the following:*

```
python problem1.py
```

> **Hint**: After finish writing your code, launch your server, go into your browser, and be sure that your Flask app is outputting the intended data.


## Requirements:

* By the end of this, you should have four different `.py` files (three for the first problem and one for the second problem).

------------

## Problem 1: "Rendering Like Rembrandt"

### Skill You're Practicing: Using templates to render Python.

Create a Flask app that renders an HTML template. In the template, display a greeting and a `name` variable (don't forget to pass the template the argument!).

Then, create a CSS change the color of the font of your template's variable.

#### Example Test Code
```
render_template('index.html', name=user)
```

#### Example Test Output
```
"Hi there Akilah. It's great to see you today!"
```

**Hint 1:**

Remember: Templates for variables use the double brackets `{{}}`.

**Hint 2:**

Don't forget the module `render_template`.

**Hint 3:**

Your directory should look like:

```
project
│   
│
└───app
│   │   problem1.py
│   │   
│   │
│   └───templates
│   │    └─── index.html
│   │
│   │
│   └───static
│       └───style.css
```

------

## Problem 2: "A Detective, a PI"

### Skill You're Practicing: Creating an API.

Write a Flask app that makes a `GET` request and returns a JSON of one of the items in a list.


#### Example Test Code
```
return jsonify({'pie ingredient': 'ingredients[0]'})
```

#### Example Test Output
```
{'pie ingredient': 'apples'}
```

**Hint 1:**

Refer to your class notes from the Variables lesson for how to read in a variable directly in a Flask app.

**Hint 2:**

There are two modules that we'll need to execute this, in addition to our standard `from flask import Flask`: `jsonify`, and `requests`.

**Hint 3:**

Try passing the variable name into your function, as well as making that your endpoint in the route.

----

## Problem 3: "The POST Man Deliverth"

### Skill You're Practicing: Creating an API.

Write a Flask app that makes a `POST` request and returns a JSON of one of the items in a list.


#### Example Test Code
```
ingredients.append(ingredient)
return jsonify({'pie ingredient': ingredients})
```

#### Example Test Output
```
{'pie ingredient': 'apples'}
```

**Hint 1:**

Refer to your class notes from the Variables lesson for how to read in a variable directly in a Flask app.

**Hint 2:**

There are two modules that we'll need to execute this, in addition to our standard `from flask import Flask`: `jsonify`, and `requests`.

**Hint 3:**

Try passing the variable name into your function, as well as making that your endpoint in the route.

**Hint 4:**

`request.get_json()`