• Markdown Library - https://www.markdownguide.org/basic-syntax/ ​

Make a file called Pipfile

​

Activate virtualenv with pipenv ​ $ pipenv shell ​

With virtualenv activated install the next libraries. ​ $ pipenv install flask flask-cors flask-migrate flask-sqlalchemy flask-jwt-extended flask-script flask-bcrypt flask-mail ​ The documentation of libraries: ​

• flask - https://palletsprojects.com/p/flask/
• flask-cors - https://flask-cors.corydolphin.com/en/latest/api.html#extension
• flask-script - https://flask-script.readthedocs.io/en/latest/
• flask-migrate - https://flask-migrate.readthedocs.io/en/latest/
• flask-sqlalchemy - https://flask-sqlalchemy.palletsprojects.com/en/2.x/
• flask-jwt-extended - https://flask-jwt-extended.readthedocs.io/en/stable/
• flask-bcrypt - https://flask-bcrypt.readthedocs.io/en/latest/
• flask-mail - https://pythonhosted.org/Flask-Mail/ ​

Make a new file called manage.py as main app. ​

Write inside the manage.py the next code: ​ from flask import Flask ​ app = Flask(name) ​ ​ if name == 'main': app.run() ​

Make a folder called templates ​ $ mkdir templates ​ Inside of templates make a file called index.html ​ <title>Document</title>

Add the next code into manage.py from flask import Flask, render_template ... @app.route('/') def root(): return render_template('index.html') ...

Make a file called models.py with the next code: ​ from flask_sqlalchemy import SQLAlchemy ​ db = SQLAlchemy() ​

Add the next imports into manage.py ... from flask_migrate import Migrate, MigrateCommand from flask_script import Manager from models import db

...
db.init_app(app)
Migrate(app, db)
manager = Manager(app)
manager.add_command("db", MigrateCommand)
...

Before
@app.route...

​

Config the flask app with the next options: ​ app.url_map.strict_slashes = False app.config['DEBUG'] = True app.config['ENV'] = 'development' app.config['SQLALCHEMY_DATABASE_URI'] = '' app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False ​ SQLALCHEMY_DATABASE_URI:

• MySQL = mysql://user:password@host:port/dbname
• SQLite = sqlite:///path/to/the/database/file.db
• PostgreSQL = postgresql://user:password@host/database ​

Config base directory of the app ​ import os ... ​ Make a variable called BASE_DIR with the next code: ​ from ... ​ BASE_DIR = os.path.abspath(os.path.dirname(file)) ​ app ... ​ Change SQLALCHEMY_DATABASE_URI With: ​ app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///' + os.path.join(BASE_DIR, 'dev.db') ​ Change app.run() by: manager.run() ​

Generate database, migrations and tables ​ python app.py db init -- only the first time python app.py db migrate -- generate the migrations python app.py db upgrade -- update the database ​ ​

Start the server with the next command ​ $ python manage.py runserver --host=0.0.0.0 --port=9000 Collapse

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