def refresh():
"""Pull fresh data from Open AQ and replace existing data."""
db.drop_all()
db.create_all()
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
results = body['results']
# url = "https://api.openaq.org/v1/measurements?city=Los%20Angeles¶meter=pm25"
# response = urllib.request.urlopen(url)
# reader = codecs.getreader("utf-8")
# obj = json.load(reader(response))
# datetime_stuff = _finditem(obj, "utc")
datetime_stuff = []
for dictionary in results:
print(type(dictionary))
for key, value in dictionary.items():
# print(key, value)
print(key, value)
datetime_stuff_utc = _finditem(dictionary, "utc")
datetime_stuff_value = _finditem(dictionary, "value")
if not tuple([datetime_stuff_utc, datetime_stuff_value]) in datetime_stuff:
datetime_stuff.append(tuple([datetime_stuff_utc, datetime_stuff_value]))
continue
for j, k in datetime_stuff:
print(j,k)
r = Record(datetime=j, value=k)
db.session.add(r)
db.session.commit()
return 'Data refreshed!'
def get_measurements(city='Los Angeles', parameter='pm25'):
api = openaq.OpenAQ()
status, body = api.measurements(city=city, parameter=parameter)
return [{'utc_datetime': datetime.strptime(result['date']['utc'],
'%Y-%m-%dT%H:%M:%S.%f%z'),
'location': result['location'],
'value': result['value']} for result in body['results']]
def refresh():
"""Pull fresh data from Open AQ and replace existing data."""
# drop current data
db.drop_all()
db.create_all()
# get data from OpenAQ
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
data = body["results"]
# loop through data, create Record objects, and add to db
i = 1
for point in data:
time = point["date"]["utc"]
value = point["value"]
# initialize record
print("Record number:", i)
db_point = Record.query.get(i) or Record(id=i)
# assign column values
print("Assigning values")
db_point.datetime = time
db_point.value = value
# commit record to database
print("Committing")
db.session.add(db_point)
db.session.commit()
i += 1
db.session.commit()
return 'Data refreshed!'
def get_city_data(city='Los Angeles',
parameter='pm25',
date_from=None,
limit=1000,
max_records=None):
api = openaq.OpenAQ()
_, body = api.measurements(
city=city,
parameter=parameter,
date_from=date_from,
limit=limit,
)
pages = body['meta']['pages']
APP.logger.info(body['meta']['found'])
results = [(x['date']['utc'], x['value'], x['unit'], x['location'])
for x in body['results']]
if pages > 1:
for i in range(2, pages + 1):
if max_records and max_records <= len(results):
break
APP.logger.info(i)
_, body = api.measurements(city=city,
parameter=parameter,
date_from=date_from,
page=i,
limit=limit)
results.extend([(x['date']['utc'], x['value'], x['unit'],
x['location']) for x in body['results']])
return results
def fetch(self, country, limit, start_date, end_date, pollutants, df=True):
api = openaq.OpenAQ()
data = self.get_param_dict(country, limit, start_date, end_date,
pollutants, df)
status, resp = api.measurements(**data)
no_pages = resp['meta']['found'] // 10000 + 1
if df == True:
data['df'] = True
pollutants_df = pd.DataFrame()
for index in range(0, no_pages):
df = api.measurements(**data)
pollutants_df = pd.concat([pollutants_df, df])
print("Fetched: page " + str(data['page']))
data['page'] += 1
pollutants_df.to_csv(self.get_filename(start_date,
end_date,
directory=self.FETCH_DIR),
encoding="utf-8",
index=False)
return pollutants_df
def refresh():
"""Pull fresh data from Open AQ and replace existing data."""
DB.drop_all()
DB.create_all()
# TODO Get data from OpenAQ, make Record objects with it, and add to db
# Using the query() function to get what I need -
data = query()
db_data = (Record.query.get(datetime) or
Record(datetime=data['date'])
# Adding the data into my
DB.session.add(db_data)
DB.session.commit()
return 'Data refreshed!'
def query():
'''goes into the API and grabs information needed'''
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
# Setting my i variable
i=1
lists = body['results'][0]['date']['utc'], body['results'][0]['value']
for s in body:
li = {body['results'][i]['date']['utc'], body['results'][i]['value']}
lists.update(li)
i= i+1
if i > 100:
li
return li
def condition():
''' This is going to just filter through my database running it with my flask shell'''
Record.query.filter(value > 10).all()
def googlemap(address):
address = address.replace(" ", "+")
config.load_keys()
current_request = requests.get(
'https://maps.googleapis.com/maps/api/geocode/json?address=' +
address + 'key=' + config.keys["GOOGLE_MAPS"])
current_location = current_request.json()
if current_location['results']:
current_city = current_location['results'][0]['address_components'][1][
'long_name']
api = openaq.OpenAQ()
status, resp = api.measurements(city=current_city)
display = resp['results'][0]
return {
"time": display['date']['local'],
"city": display['city'],
"location": display['location'],
"measurement": {
"parameter": display['parameter'],
"value": display['value'],
"unit": display['unit']
}
}
else:
return {}
def get_data(city, parameter):
""" Query OpenAQ for a city and corresponding air quality value """
api = openaq.OpenAQ()
status, body = api.measurements(city=city, parameter=parameter)
observations = [(obs['date']['utc'], obs['value'])
for obs in body['results']]
return observations
def pull_data():
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
if status != 200:
return 'Error!'
else:
return body['results']
def googlemap(current_city):
#address = address.replace(" ", "+")
#config.load_keys()
#current_request = requests.get('https://maps.googleapis.com/maps/api/geocode/json?address='+address+'key='+config.keys["GOOGLE_MAPS"])
#current_location = current_request.json()
#print current_location
#if current_location['results']:
#current_city = current_location['results'][0]['address_components'][1]['long_name']
# print current_city
#print "________________________________________________________"
api = openaq.OpenAQ()
# print current_city
status, resp = api.measurements(city = current_city)
if status == 200 and resp['results']:
#print resp['results']
display = resp['results'][0]
return {"time": display['date']['local'], "city": display['city'], "coordinates": {"lat": display['coordinates']['latitude'], "lng": display['coordinates']['longitude']}, "location":display['location'], "measurement": {"parameter":display['parameter'], "value":display['value'], "unit": display['unit']}}
else:
return {}
def create_app():
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///db.sqlite3'
app.config['SQLALCHEMY_TRACK_MODIFICATIONS'] = False
db = SQLAlchemy(app)
db.init_app(app)
api = openaq.OpenAQ()
@app.route('/')
def root():
return render_template('base.html', title='Home', cities=get_api_cities())
# return """<!DOCTYPE html>
# """
@app.route('/risky')
def risky():
"""Datetime, reading where value >= 10"""
return 'Potentially risky PM2.5 readings<br />' \
'{}'.format(Record.query.filter(Record.value >= 10).all())
@app.route('/aq')
def get_api_data(city='Los Angeles', parameter='pm25'):
status, body = api.measurements(city=city, parameter=parameter)
my_list = []
for date, result in zip(body['results'], body['results']):
my_list.append(((date['date']['utc']), (result['value'])))
return my_list
class Record(db.Model):
id = db.Column(db.Integer, primary_key=True)
datetime = db.Column(db.String(25))
value = db.Column(db.Float, nullable=False)
def __repr__(self):
return '-Time {} Reading {}-<br />'.format(self.datetime, self.value)
@app.route('/refresh')
def refresh():
"""Pull fresh data from Open AQ and replace existing data."""
db.drop_all()
db.create_all()
new_data = get_api_data()
for result in new_data:
db_record = Record(datetime=result[0], value=result[1])
DB.session.add(db_record)
db.session.commit()
return 'Data refreshed!'
@app.route('/cities')
def get_api_cities(country="NL", limit=50):
""" Returns list of dictionaries with city, country, count, number of locations """
status, body = api.cities(country=country, limit=limit)
cities_list = []
for city in body['results']:
cities_list.append(city['name'])
return str(cities_list)
return app
def get_datetimeValues(city, parameter):
api = openaq.OpenAQ()
status, body = api.measurements(id=id, city=city, parameter=parameter)
if status == 200:
utc_datetimes = [result['date']['utc'] for result in body['results']]
values = [result['value'] for result in body['results']]
tuple_list = make_list(utc_datetimes, values)
return tuple_list
def root():
"""Base view."""
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
n = len(body['results'])
utcv = [(body['results'][i]['date']['utc'], body['results'][i]['value'])
for i in range(n)]
return str(Record.query.filter(Record.value >= 10).all())
def get_aq_data():
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
dates_and_values = []
for i in range(len(body['results'])):
measurement = (body['results'][i]['date']['utc'], body['results'][i]['value'])
dates_and_values.append(measurement)
return dates_and_values
def get_datetime_values(city, parameter):
api = openaq.OpenAQ()
status, body = api.measurements(city=city, parameter=parameter)
if status == 200:
utc_datetimes = [result['date']['utc'] for result in body['results']]
values = [result['value'] for result in body['results']]
list_of_tuples = merge(utc_datetimes, values)
return list_of_tuples
def get_data():
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
for item in body['results']:
utc = item['date']['utc']
value = item['value']
date_tuple = (utc, value)
date_time.append(date_tuple)
return date_time
def data(city='Los Angeles', parameter='pm25'):
api = openaq.OpenAQ()
status, body = api.measurements(city=city, parameter=parameter)
values = []
for result in body['results']:
utc_datatime = result['date']['utc']
value = result['value']
values.append((utc_datatime, value))
return values
def raw_data(city, parameter):
"""
1. created object api that have the class OpenAQ
2. api.measurements return two values status and body
3. return the list of tuples with a loop
"""
api = openaq.OpenAQ()
status, body = api.measurements(city=city, parameter=parameter)
return [(n['date']['utc'], n['value']) for n in body['results']]
def get_date_values():
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
results = body['results']
date_val_tuples = [25]
for res in results:
tup = str(res['date']['utc']), res['value']
date_val_tuples.append(tup)
return date_val_tuples
def cities():
api = openaq.OpenAQ()
status, body = api.cities()
results = getCities(body)
output = "Cities that OpenAQ covers:\n"
for city in results:
output += city + "\n"
return output
def part2_stretch(lati: float, lngi: float, radi: float) -> str:
api = openaq.OpenAQ()
status, resp = api.measurements(coordinates=(lati, lngi),
radius=radi,
date_from='2015-12-20',
date_to='2015-12-29')
return rtrn_val_utcdt(resp)
def get_records():
# Set up the API object
api = openaq.OpenAQ()
_, body = api.measurements(city='Los Angeles', parameter='pm25')
results = body['results']
values = []
for result in results:
values.append((result['date']['utc'], result['value']))
return values
def getdata():
import openaq
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
list_values = [(item['date']['utc'], item['value'])
for item in body['results']]
# return 'TODO - part 2 and beyond!'
return list_values
def get_current_measurement_readings(self):
"""
Acquire data from the "measurements" API.
https://docs.openaq.org/#api-Measurements
"""
# Fetch data from remote API.
log.info('Requesting measurement data from OpenAQ')
api = openaq.OpenAQ()
params = {}
if self.filter and 'country' in self.filter:
params['country'] = self.filter['country']
# TODO: What to do with readings which do not have any geographic information?
# TODO: Raise limit by introducing result paging.
date_from = self.last_hour()
status, response = api.measurements(date_from=date_from,
has_geo=True,
limit=10000,
include_fields=['attribution'],
**params)
data = response['results']
if not data:
log.warning('No records found beginning {} with filter {}'.format(
date_from, params))
return
# Mungle timestamp to be formally in ISO 8601 format (UTC).
timestamp = data[0]['date']['utc']
log.info('Timestamp of first record: {}'.format(timestamp))
# Apply data filter.
#data = self.apply_filter(data)
# Transform live API items to actual readings while optionally
# applying a number of transformation and enrichment steps.
readings = {}
for item in self.wrap_progress(data):
try:
self.process_measurement(readings, item)
except Exception as ex:
log.warning('Could not use observation from {}.\n{}'.format(
item, exception_traceback()))
for reading in readings.values():
has_data = False
for observation in reading.observations:
if observation['data']:
has_data = True
break
if has_data:
yield reading
def get_data(city='Los Angeles',
parameter='pm25'): # Added default arguments for debugging
api = openaq.OpenAQ()
status, body = api.measurements(city=city, parameter=parameter)
# getting datetime values as strings
utc = [str(sub['date']['utc']) for sub in body['results']]
# getting aq values as floats
vals = [float(sub['value']) for sub in body['results']]
time_vals = list(zip(utc, vals))
return time_vals
def refresh():
"""Pull fresh data from Open AQ and replace existing data."""
DB.drop_all()
DB.create_all()
# TODO Get data from OpenAQ, make Record objects with it, and add to db
api = openaq.OpenAQ()
get_times(api)
DB.session.commit()
return render_template("refresh.html", refresh='Data refreshed!')
return 'Data refreshed!'
def locations(city='Los Angeles'):
"""Pull location meta-data from Open AQ and display it."""
api = openaq.OpenAQ()
status, body = api.locations(city=city)
locations = [{'name': loc['location'],
'latitude': loc['coordinates']['latitude'],
'longitude': loc['coordinates']['longitude']} for loc in body['results']]
return render_template('locations.html',
city=city,
locations=locations)
def answers():
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
l = []
for i in range(len(body['results'])):
a = list(body['results'][i].values())[2:4]
date, value = list(a[0].values())[0], a[1]
t = (date, value)
l.append(t)
return l
def root():
"""Base view."""
api = openaq.OpenAQ()
status, body = api.measurements(city='Los Angeles', parameter='pm25')
results = getDatesValues(body)
# Part 4 Stretch Goal
return render_template(
"base.html", records=Record.query.filter(Record.value >= 10).all())
return str(Record.query.filter(Record.value >= 10).all())
return str(results)
def retrieve_data():
"""gets data from OpenAQ api and returns as a string of tuples"""
api = openaq.OpenAQ()
test = api.measurements(city='Los Angeles', parameter='pm25')
number, dict = [i for i in test]
results_dict = dict['results']
date_dict = [i['date'] for i in results_dict]
utc_list = [i['utc'] for i in date_dict]
value_list = [i['value'] for i in results_dict]
tuples_list = list(zip(utc_list, value_list))
return str(tuples_list)