Fullstack Web Development (React + Flask) Workshop

Access git handbook here

To follow along fork this repository first and clone it.

Then switch to the branch f/health-api

Task - 1: Health Check API

GET /api/health

Expected Response

    {
        'message': 'OK'
    }

Solution

@app.route('/api/health', methods=['GET'])
def health():
    return jsonify({'message': 'OK'}), 200

Task - 2: Logic for fetching votes

switch to the branch f/voting

GET /api/digit-classifier/stats

setup

from app import app
from auth.models.index import db, User, VoteSample

app.app_context().push()

user1 = User.create_user('john', 'John Doe', 'device1')

VoteSample.create_vote_sample(predicted_label=3, true_label=3, voted_by=user1.id)
VoteSample.create_vote_sample(predicted_label=5, true_label=5, voted_by=user1.id)

querying

db.session.query(User).all()
db.session.query(VoteSample.voted_by).group_by(VoteSample.voted_by)

### Example

db.select([SALES.c.company, db.func.sum(SALES.c.no_of_invoices)]) \
    .group_by(SALES.c.company)

Modify the file digit_classifier/services/voting_service.py the TODO section

Expected output

[
    {
        "accuracy": 0.5,
        "predictions": 2,
        "voted_by": "smotte"
    }
]