graphPaname/app/data_request.py

51 lines
1.2 KiB
Python

from re import findall
from typing import List
from bs4 import BeautifulSoup
from requests import get
from constants import FLICKR_URL, URL
def format_url(dataset) -> str:
"""
Constructs the API's URL for the requested dataset
"""
link = URL.format(dataset)
return link
def request_dataset(dataset):
"""
Fetches the requested dataset from opendata's API
Raises an exception if there's an HTTP error
"""
url = format_url(dataset)
response = get(url)
response.raise_for_status()
data = response.json()
return data
def request_flickr(keywords) -> str:
"""
Returns the HTML of a Flickr search
"""
search_url = FLICKR_URL.format(keywords)
result = get(search_url)
html = result.text
return html
def scrap_flickr(keywords) -> List[str]:
"""
Creates a list of image links from a Flickr search
"""
html = request_flickr(keywords)
soup = BeautifulSoup(html, features="html.parser")
images = soup.find_all(
"div", class_="view photo-list-photo-view requiredToShowOnServer awake",
)
image_links = findall("(live.staticflickr.com/\S+.jpg)", str(images))
return image_links