PYTHR/deployment/content/unit-6-flask/instructor-resources/hw-5day-4flask

Python Programming: Flask

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.

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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).

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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

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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.

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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()