Python/JS script to consume Google Maps API in order to transform a textual address into (lat, long) coordinates.

address_converter.js

var coords = [];

async function convert_address(address, API_KEY) {
    // Parse address
    var city = "+Ciudad+de+México";
    var state = "+CDMX";
    var parsed_address = address.replace(', ', '+');
    parsed_address = parsed_address.replace(' ', '+');
    parsed_address = parsed_address.concat(city);
    parsed_address = parsed_address.concat(state);


    // Set API call params
    var params = `key=${API_KEY}&address=${parsed_address}`;
    var url = `https://maps.googleapis.com/maps/api/geocode/json?${params}`;

    // Consume Maps API
    const request = await fetch(url)
    .then( res => res.json() )
    .then( data => {
        var lat = data.results[0].geometry.location.lat;
        var lng = data.results[0].geometry.location.lng;

        coords = [lat, lng];
        console.log(coords);
        console.log([lat, lng]);
    })

    return coords;
}

address_converter.py

import requests

import re


def convert_address(address, API_KEY):
    """Function to convert textual addresses into (lat, long) coordinates.

    Parameters
    ----------
    address : str
        A string containing the raw textual address to be converted.
    API_KEY : str
        A Google Maps API Key.
    
    Returns
    -------
    (lat, long) : tuple
        A tuple containing the latitude and longitude of the address.
    """

    # Parse address
    city = "+Ciudad+de+México"
    state = "+CDMX"
    parsed_address = re.sub(', ', '+', address)
    parsed_address = re.sub(' ', '+', parsed_address)
    parsed_address += city
    parsed_address += state

    # Consume Maps API
    GMAPS_API_URL = 'https://maps.googleapis.com/maps/api/geocode/json'

    params = {
        'address': parsed_address,
        'sensor': 'false',
        'region': 'mx',
        'key': API_KEY
    }

    # Do the request and get the response data
    req = requests.get(GMAPS_API_URL, params=params)
    res = req.json()

    # Use the first result
    result = res['results'][0]
    lat = result['geometry']['location']['lat']
    lng = result['geometry']['location']['lng']

    return (lat, lng)


if __name__ == "__main__":
    API_KEY = ""

    print("Ingresa una dirección.")
    print("Por favor, asegúrate de que sea calle, número y colonia.")
    address = input("> ")

    lat, lng = convert_address(address, API_KEY)
    print(lat, lng)