Google textsearch API
硕士数据分析代写 Format of the list returned by your functionYour function should return a list of businesses that satisfy your query.
Documentation:
https://developers.google.com/places/web-service/search#TextSearchRequests
Google’s text search API returns a list of places based on a free form string query. For e.g., if you want to find restaurants close to Columbia University, you can send a request using the string “restaurants near Columbia University” and the API will return a response containing an appropriate list of restaurants.
The assignment 硕士数据分析代写
Write a function:
get_businesses(query,api_key,min_rating=0.0,max_results = 30)
That uses the textsearch API to get a list of businesses defined by the query. If the min_rating parameter is included in the function call, then your list should only include businesses whose rating is greater than the value specified. If the max_results parameter is included in the query, your list should include a maximum of max_results.
Format of the list returned by your function 硕士数据分析代写
Your function should return a list of businesses that satisfy your query. The data for each business should be in the form of tuple containing the following information:
- The name of thebusiness
- The formatted address of thebusiness
- Whetherthe business is open at the time of the query (use a dictionary for this field)
- The price level (google returns numbers form 0 to 4 for thisfield) 硕士数据分析代写
- The rating of thebusiness
For example, the first two responses for the query: get_businesses(query,api_key,min_rating=4.0,max_results=50) are:
[("Brownie's Cafe",
'1172 Amsterdam Ave, New York, NY 10027, USA',
{'open_now': True}, None,
4.5),
("Friedman's",
'1187 Amsterdam Ave, New York, NY 10027, USA',
{'open_now': True}, 2,
4.2)]
Pagination 硕士数据分析代写
The API returns 20 results for each call. If there are more than 20 results in a response, then the API response includes a key “next_page_token” in the json (or xml) response. If you need more than 20 responses, then you must use this token to get the next 20 results (and so on until either you have enough responses or there are no more results from the query). Use the next_page_token as a parameter to the url (see the bottom of the documentation page for an example) but note the following:
- Youshould include only the pagetoken and key parameters when getting the next page (omit the query parameter) 硕士数据分析代写
- The next page may not be immediately available and the API will return an INVALID_REQUEST status if the page is not available. Use a loop to continually send thequery and check the response until the page is Because each request is (potentially) charged, you might want to wait a little before sending the request. The following code fragment should help:
response = requests.get(new_url)
while response.json().get('status') != 'OK': from time import sleep
from random import random sleep(random())
response = requests.get(new_url)
Where new_url represents the url request containing the pagetoken parameter
Please include your api key in your submission. The TA will need it to check if your code works properly!
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