A gist to accompany the blog post about returning repeatable data patterns from a HTTP endpoint

example_streaming.py

"""
Mimick an endpoint that returns
- glucose levels of a patient
- as a time series
- since the last call made in the session
"""
from flask import Flask, session
app = Flask(__name__)
app.secret_key = b'DONT make your key public unless it is part of a throwaway example!'

with open('glucose_levels.csv','r') as fp:
    GLUCOSE_DATA = fp.readlines()

@app.route('/glucose-level')
def glucose_levels():
    "Return glucose levels"
    session_count = session.get('count', 0)
    line_number = session_count%len(GLUCOSE_DATA)
    data = GLUCOSE_DATA[line_number]
    session['count'] = session_count + 1

    return data

#----START OF SCRIPT
if __name__=='__main__':
    app.run('0.0.0.0',debug=True,port=6464)

glucose_levels.csv

97
98
99
100
199
200
200.01
199.99
105
104
103
102