get_bloods.py

#!/usr/bin/env python3
"""
Scrapes for phlebotomy appointments at St Helens & Knowsley Teaching Hospitals locations.

The local NHS trust uses Simplybook to manage their bloods appointment, and
unfortunatly the Web UI for doing this is slow and unreliable. It can take
upwards of 5-10 minutes to check for available appointments at each location.

This script scrapes the API to provide a list of the next available appointment
at each location, saving time when hunting for one.
"""

import requests
import uuid
from random_user_agent.user_agent import UserAgent
from random_user_agent.params import SoftwareName, OperatingSystem

# Generate a random user agent
user_agent = UserAgent(
    software_names=[SoftwareName.EDGE.value, SoftwareName.CHROME.value, SoftwareName.SAFARI.value],
    operating_systems=[OperatingSystem.MACOS.value],
    limit=100,
).get_random_user_agent()
print(user_agent)

# Setup the session
session = requests.session()
session.headers.update(
    {
        "Cache-Control": "no-cache",
        "Pragma": "no-cache",
        "User-Agent": user_agent,
        "X-Debug": str(uuid.uuid4()),
        "X-Requested-With": "XMLHttpRequest",
        "Referer": "https://sthk.simplybook.cc/v2/",
    }
)

# Grab all locations
locations = session.get("https://sthk.simplybook.cc/v2/ext/location")
for location in locations.json():
    # ID of the bloods service
    service_id = location["events"][0]

    # Grab the first day for the service
    resp = session.get(
        "https://sthk.simplybook.cc/v2/booking/first-working-day",
        params={
            "location": location["id"],
            "service": service_id,
            "provider": "any",
            "timeline": "modern",
        },
    )

    # Get the start date from the 'id' field
    startdate = resp.json()["id"]

    # Hit the timeslots API
    resp = session.get(
        "https://sthk.simplybook.cc/v2/booking/time-slots",
        params={
            "from": startdate,
            "to": startdate,
            "location": location["id"],
            "service": service_id,
            "count": 1,
            "category": "",
            "provider": "any",
            "booking_id": "",
        },
    )

    # print(resp.json())
    for appt in resp.json():
        # Skip any appointments marked as busy
        if appt["type"] == "busy":
            print("Busy...")
            continue
        print(
            "{0} - {1}, {2} slots available".format(
                location["title"], appt["id"], appt["available_slots"]
            )
        )
        break