Google Maps Search
google_maps_search.Rd
Search for places on Google Maps based on a given query (or many queries).
Usage
google_maps_search(
query,
limit = 10,
drop_duplicates = FALSE,
coordinates = NULL,
skip_places = 0,
language = "en",
region = NULL,
async = FALSE,
api_key = Sys.getenv("OUTSCRAPER_API_KEY")
)
Arguments
- query
(chr) the query you want to search. You can use anything that you would use on a regular Google Maps site. Additionally, you can use google_id (feature_id), place_id, or CID.
- limit
(int, default = 10) The parameter specifies the limit of organizations to take from one query search.
- drop_duplicates
(lgl, default = FALSE) The parameter specifies whether the bot will drop the same organizations from different queries. It makes sense when you use batching and send multiple queries inside one request.
- coordinates
(chr) The parameter defines the coordinates of the location where you want your query to be applied. It has to be constructed in the next sequence:
paste0(latitude, ", ", longitude)
, e.g."(41.3954381,2.1628662)"
. Often, you can find this value while visiting Google Maps.- skip_places
(int) Skip first N places, where N should be multiple to 20 (e.g. 0, 20, 40). It's commonly used in pagination.
- language
(chr, default = "en") the language to use for website.
- region
(chr, default = NULL) the country to use for website. It's recommended to use it for a better search experience.
- async
(lgl, default = FALSE) The parameter defines the way you want to submit your task to Outscraper. It can be set to
FALSE
to open an HTTP connection and keep it open until you got your results, orTRUE
to just submit your requests to Outscraper and retrieve them later (usually within 1-3 minutes) with the Request Results endpoint. Each response is available for 2 hours after a request has been completed.- api_key
(chr, default = Sys.getenv("OUTSCRAPER_API_KEY")) Your API key. You can get it by registering on Outscraper.
Value
a tibble with places from Google Maps on each row, based on a given search query (or many queries).
Details
Queries
The example of valid queries:
Real estate agency, Rome, Italy
The NoMad Restaurant, NY, USA
restaurants, Brooklyn 11203
0x886916e8bc273979:0x5141fcb11460b226
ChIJrZhup4lZwokRUr_5sLoFlDw
etc.
It supports batching by sending arrays with up to 250 queries (e.g., query=text1&query=text2&query=text3). It allows multiple queries to be sent in one request and save on network latency time. You might want to check out the web application to play with locations and categories that we would suggest.
Limit
There are no more than 500 places per one query search on
Google Maps. For densely populated areas you might want to split your
query into subqueries in order to get all the places inside. (e.g.,
c("restaurants, Brooklyn 11211", "restaurants, Brooklyn 11215")
).
Drop duplicates
When TRUE
the bot combines results from each
query inside one big array ({'data': [...]}
instead of {'data': [[...], [...], [...]]}
). If the amount of ignored rows are less than
5,000% of what was actually extracted, you won't be billed for
ignored records. Anyway, the results of google_map_search
is
always a single tibble with all the places.
Async
A good practice is to send async requests and start checking the results after the estimated execution time. Check out this Python implementation as an example.
As most of the requests take some time to be executed the async = TRUE
option is preferred to avoid HTTP requests timeouts.
Examples
if (FALSE) {
# single
google_maps_search("pizzeria, New York", limit = 1)
# multiple
google_maps_search(
c("pizzeria, New York", "pizzeria, Chicago"),
limit = 1 # each query will return 2 places max
)
}