lambda_function.py

import http.client
from geopy.geocoders import Nominatim
import json

def geo_code(city):
    geo_locator = Nominatim(user_agent="medium_article_example")
    location = geo_locator.geocode(city)
    print(location.latitude, location.longitude)
    return (location.latitude, location.longitude)


def get_weather(lat, lon):

    conn = http.client.HTTPSConnection("weatherbit-v1-mashape.p.rapidapi.com")

    with open('credentials.json') as secret:
        headers = json.load(secret)

    conn.request("GET", f"/current?lon={lon}&lat={lat}", headers=headers)

    res = conn.getresponse()
    data = res.read()

    data = json.loads(data)

    return data['data'][0]['weather']['description']
    
def lambda_handler(event, context):
    ret = dict()
    res = []
    try:
        for city in event["arguments"]:
            city = city[0]
            lat, lon = geo_code(city)
            weather = get_weather(lat,lon)
            res.append(weather)
        ret['success'] = True
        ret['results'] = res
    except Exception as e:
        ret['success'] = False
        ret['error_msg'] = str(e)
    return json.dumps(ret)