Initial IBM-based weather proxy. No auth yet.
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Katharine Berry
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2 changed files with 105 additions and 0 deletions
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.gitignore
vendored
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.gitignore
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.pyenv
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.idea
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weather/__init__.py
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weather/__init__.py
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import datetime
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import os
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import time
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import requests
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from flask import Flask, request, jsonify
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from werkzeug.routing import FloatConverter
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app = Flask(__name__)
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ibm_root = os.environ['IBM_API_ROOT']
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# For some reason, the standard float converter rejects negative numbers
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# (and also integers without a decimal point).
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class SignedFloatConverter(FloatConverter):
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regex = r'-?\d+(\.\d+)?'
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app.url_map.converters['float'] = SignedFloatConverter
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def format_date(date):
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return date.strftime("%Y-%m-%dT%H:%M:%S")
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@app.route('/api/v1/geocode/<float:latitude>/<float:longitude>/')
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def geocode(latitude, longitude):
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units = request.args.get('units', 'h')
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language = request.args.get('language', 'en-US')
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forecast_req = requests.get(f"{ibm_root}/geocode/{latitude}/{longitude}/forecast/daily/7day.json?language={language}&units={units}")
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forecast_req.raise_for_status()
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forecast = forecast_req.json()
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current_req = requests.get(f"{ibm_root}/geocode/{latitude}/{longitude}/observations.json?language={language}&units={units}")
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current_req.raise_for_status()
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current = current_req.json()
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observation = current['observation']
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old_style_conditions = {
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'metadata': current['metadata'],
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'observation': {
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'class': observation['class'],
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'expire_time_gmt': observation['expire_time_gmt'],
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'obs_time': observation['valid_time_gmt'],
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# 'obs_time_local': we don't know.
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'wdir': observation['wdir'],
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'icon_code': observation['wx_icon'],
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'icon_extd': observation['icon_extd'],
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# sunrise: we don't know these, but we could yank them out of the forecast for today.
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# sunset
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'day_ind': observation['day_ind'],
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'uv_index': observation['uv_index'],
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# uv_warning: I don't even know what this is. Apparently numeric.
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# wxman: ???
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'obs_qualifier_code': observation['qualifier'],
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'ptend_code': observation['pressure_tend'],
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'dow': datetime.datetime.utcfromtimestamp(observation['expire_time_gmt']).strftime('%A'),
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'wdir_cardinal': observation['wdir_cardinal'], # sometimes this is "CALM", don't know if that's okay
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'uv_desc': observation['uv_desc'],
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# I'm just guessing at how the three phrases map.
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'phrase_12char': observation['blunt_phrase'] or observation['wx_phrase'],
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'phrase_22char': observation['terse_phrase'] or observation['wx_phrase'],
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'phrase_32char': observation['wx_phrase'],
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'ptend_desc': observation['pressure_desc'],
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# sky_cover: we don't seem to get a description of this?
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'clds': observation['clds'],
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'obs_qualifier_severity': observation['qualifier_svrty'],
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# vocal_key: we don't get one of these
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{'e': 'imperial', 'm': 'metric', 'h': 'uk_hybrid'}[units]: {
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'wspd': observation['wspd'],
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'gust': observation['gust'],
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'vis': observation['vis'],
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# mslp: don't know what this is but it doesn't map to anything
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'altimeter': observation['pressure'],
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'temp': observation['temp'],
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'dewpt': observation['dewPt'],
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'rh': observation['rh'],
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'wc': observation['wc'],
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'hi': observation['heat_index'],
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'feels_like': observation['feels_like'],
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# temp_change_24hour, temp_max_24hour, temp_min_24hour, pchange: don't get any of these
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# {snow,precip}_{{1,6,24}hour,mtd,season,{2,3,7}day}: don't get these either
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# ceiling, obs_qualifier_{100,50,32}char: or these.
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# these are all now in their own request that you can pay extra to retrieve.
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},
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}
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}
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return jsonify(
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fcstdaily7={
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'errors': False,
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'data': forecast,
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},
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conditions={
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'errors': False,
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'data': old_style_conditions,
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},
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metadata={
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'version': 2,
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'transaction_id': str(int(time.time())),
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},
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)
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