Update google_books.py

Author: pedropregueiro

consuming-apis-python/google_books.py

@@ -1,11 +1,22 @@
 import requests
 
 endpoint = "https://www.googleapis.com/books/v1/volumes"
-params = {"q": "moby dick", "maxResults": 3}
 
+# Define the search term you want to use.
+query = "moby dick"
+
+# In the query parameters you can define:
+# 1. The number of books to return using the `maxResults` parameter.
+# 2. The query term to search for using the `q` parameter.
+params = {"q": query, "maxResults": 3}
+
+# The response will contain a list of books that match your query.
 response = requests.get(endpoint, params=params).json()
 for book in response["items"]:
+    # In order to fetch the title, published date and description, you first need to fetch the volume.
     volume = book["volumeInfo"]
+
+    # You can fetch these and other attributes from the book using the specific volume
     title = volume["title"]
     published = volume["publishedDate"]
     description = volume["description"]