How to Query Google Maps API with JSON Parsing in Python?

Querying Google Maps API with JSON Parsing in Python

This article provides a comprehensive solution to dynamically query Google Maps API using the Google Directions API. Through a genuine use case, we will send a request, handle the response, and parse it into JSON using the powerful Python ecosystem.

Problem

Our goal is to calculate the route from Chicago, Illinois to Los Angeles, California, including waypoints in Joplin, Missouri and Oklahoma City, Oklahoma. The Google Directions API offers a JSON-formatted response, and we aim to process this result effectively in Python.

Solution

1. Importing the 'requests' Library
First, we import the versatile 'requests' library, renowned for its HTTP request-handling capabilities.

import requests

2. Defining Request Parameters
Next, we establish parameters to specify our request:

params = dict(
    origin='Chicago,IL',
    destination='Los+Angeles,CA',
    waypoints='Joplin,MO|Oklahoma+City,OK',
    sensor='false'
)

3. Sending the HTTP Request
Using the 'requests' library, we send the HTTP request to Google Maps API:

resp = requests.get(url=url, params=params)

4. Parsing the JSON Response
The response is received and stored in 'resp'. To extract the JSON data, we use the json() method:

data = resp.json()

Conclusion
By leveraging the 'requests' library, we can efficiently interact with Google Maps API, retrieve the JSON response, and parse its contents in Python, empowering us to access valuable geographic information for our applications.

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