11 Questions
The app.route(...) used to define service routes is a decorator in python.
True
Which statement is NOT correct about the code below, based on our labs?
if name == 'main': app.run(port=5000, debug=True)
Because of 'debug=True', we need to manually restart the app (Ctrl+C and rerun the python module) whenever the code is changed while it is running.
In the lab code, app.config['SQLALCHEMY_DATABASE_URI'] = 'mysql+mysqlconnector://root@localhost:3306/book' specifies a book database. Now let's assume the database is relocated on a server with the IP address 10.0.40.3. Which part of the URI do you need to replace with 10.0.40.3?
localhost
from flask import Flask, request, jsonify from flask_sqlalchemy import SQLAlchemy
app = Flask(name)
app.config['SQLALCHEMY_DATABASE_URI'] =
'mysql+mysqlconnector://jason:mary@localhost:3306/asset'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)
class Asset(db.Model): tablename = 'asset'
asset_num = db.Column(db.String(32), primary_key=True)
name = db.Column(db.String(64), nullable=False)
description = db.Column(db.String(256), nullable=False)
owner_id = db.Column(db.Integer)
def __init__(self, asset_num, name, description, owner_id):
self.asset_num = asset_num
self.name = name
self.description = description
self.owner_id = owner_id
more codes below...
A, B, C
WampServer is also a web service.
False
The parameter used for app.route(...) should contain a complete URL including either a hostname or an IP, such as "http://127.0.0.1:5000/" or "http://127.0.0.1:5000/book/".
False
@app.route("/book/title/")
def find_by_title(title):
book = db.session.scalars(
db.select(Book).filter_by(title=title).
limit(1)
).first()
if book:
return jsonify(
{
"code": 216,
"data": "yes"
}
)
return jsonify(
{
"code": 404,
"message": "Dun tell you."
}
), 444
A & B
The Flask-SQLAlchemy python package is a service.
False
The postman app is a service consumer.
True
The book.py implements a REST web service.
True
from flask import Flask app = Flask(name)
@app.route("/") def www(): return "HELLO"
def home(): return "HI"
python -m flask run
Open URL http://127.0.0.1:5000/ in the browser will display "HELLO".
This quiz tests your understanding of replacing the database URI when relocating a database in a Flask application using SQLAlchemy. The code provided includes a Flask app with a defined SQLAlchemy database URI and requires identifying the part of the URI that needs to be replaced with the new server IP address.
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