69 lines
2.2 KiB
Python
69 lines
2.2 KiB
Python
import asyncio
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import pathlib
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from typing import Any
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from rec.query import listing_query, QueryParameters
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from rec.districts import get_districts
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from data_access import Listing
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async def dump_listings(
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parameters: QueryParameters,
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data_dir: pathlib.Path = pathlib.Path("data/rs/"),
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) -> list[Listing]:
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if parameters.district_names:
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districts = {
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district: locid
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for district, locid in get_districts().items()
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if district in parameters.district_names
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}
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else:
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districts = get_districts()
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print("Valid districts to scrape:", districts.keys())
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listings = []
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semaphore = asyncio.Semaphore(5) # if too high, rightmove drops connections
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json_responses = await asyncio.gather(
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*[
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_dump_listings_with_semaphore(semaphore, i, parameters, locid)
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for locid in districts.values()
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for i in [1, 2]
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]
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)
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listings = []
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for response_json in json_responses:
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if response_json["totalAvailableResults"] == 0:
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print("No results found")
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continue
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if response_json["totalAvailableResults"] > 0:
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print("totalAvailableResults: ", response_json["totalAvailableResults"])
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for property in response_json["properties"]:
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identifier = property["identifier"]
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listing = Listing(identifier, data_dir=data_dir)
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listing.dump_listing(property)
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listings.append(listing)
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return listings
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async def _dump_listings_with_semaphore(
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semaphore: asyncio.Semaphore,
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page_id: int,
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parameters: QueryParameters,
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location_id: str,
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) -> dict[str, Any]:
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async with semaphore:
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listing = await listing_query(
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page=page_id,
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channel=parameters.listing_type,
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min_bedrooms=parameters.min_bedrooms,
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max_bedrooms=parameters.max_bedrooms,
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radius=parameters.radius,
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min_price=parameters.min_price,
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max_price=parameters.max_price,
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location_id=location_id,
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page_size=parameters.page_size,
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max_days_since_added=parameters.max_days_since_added,
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furnish_types=parameters.furnish_types or [],
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)
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return listing
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