maps.chandlerswift.com/layers/dot-cams/travel-iq/get_data.py

#!/usr/bin/python3

import requests
import json

states = {
    "Georgia": "https://511ga.org/",
    "Louisiana": "https://www.511la.org/",
    "Nevada": "https://www.nvroads.com/",
    "NewYork": "https://www.511ny.org/",
    "Wisconsin": "https://511wi.gov/"
}

for state, baseURL in states.items():
    query={
        "columns": [ # no clue what any of this is, so here it stays
            {
                "data": None,
                "name": "",
            },
            {
                "name": "sortId",
                "s": True,
            },
            {
                "name": "region",
                "s": True,
            },
            {
                "name": "county",
                "s": True,
            },
            {
                "name": "roadway",
                "s": True,
            },
            {
                "name": "description1",
            },
            {
                "data": 6,
                "name": "",
            },
        ],
        "start": 0,
        "length": 100,
    }

    cameras = []
    available_cameras = 999_999 # lots

    while len(cameras) < available_cameras:
        res = requests.get(f"{baseURL}/List/GetData/Cameras", {
            "query": json.dumps(query),
            "lang": "en",
        })
        res.raise_for_status()
        res = res.json()
        available_cameras = res['recordsTotal']
        for c in res['data']:
            cameras.append({
                "type": "Feature",
                "geometry": {
                    "type": "Point",
                    "coordinates": [c['longitude'], c['latitude']], # yes, [lon, lat] since it's [x, y]
                },
                "properties": {
                    'name': c['displayName'],
                    'views': [{
                        'hasVideo': c['videoUrl'],
                        'src': c['videoUrl'][0] if isinstance(c['videoUrl'], list) else c['videoUrl'], # LA returns multiple (identical?) streams
                    }],
                },
            })
        query['start'] += 100

    geojson = {
        "type": "FeatureCollection",
        "features": cameras,
    }

    with open(f"data/{state}.geojson", "w") as f:
        f.write(json.dumps(geojson))

    print(f"{len(cameras)} locations found for {state}")

# hack hack hack
#
# If I write this to one big file, I can't take advantage of any lazy loading
# for performance reasons, so I'm constrained to having a bunch of files. I
# can't programmatically import those, since es6 imports don't allow for that.
# So, codegen it is (and fairly gross codegen at that!).
with open('data/states.js', 'w') as f:
    for state in states:
        f.write(f"import {state} from './{state}.geojson?url';\n")
    f.write('\nexport default {\n')
    for state in states:
        f.write(f"    {state}: {state},\n")
    f.write("};\n")