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yosemite-camping

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Simple script for scraping yosemite campgrounds!

// repository documentation

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# Campsite Availability Scraping
This is a simple script for scraping availability of campgrounds! The recreation.gov api doesn't reveal campsite availability, so this script spoofs a session through their search portal to allow programmatic polling of campsite availability.

It's currently hardcoded for yosemite, but with a bit of network sniffing you can reconfigure for other national parks.

### Sample Output
List of campsites with availabilities on queried dates + links.
```
UPPER PINES, Booking Url: http://www.recreation.gov/unifSearchInterface.do?interface=bookcamp&contractCode=NRSO&parkId=70925
LOWER PINES, Booking Url: http://www.recreation.gov/unifSearchInterface.do?interface=bookcamp&contractCode=NRSO&parkId=70928
NORTH PINES, Booking Url: http://www.recreation.gov/unifSearchInterface.do?interface=bookcamp&contractCode=NRSO&parkId=70927
```

# Instructions
Install requirements:
```
pip install -r requirements.txt
```
Use: `python campsites.py --start_date 2015-04-24 --end_date 2015-04-25`

Best use is to set a crontab on a ~5 minute interval (I've found that a 10-minute interval is too long because the campsites will be taken by the time I'm able to act on the alert).

`campsites.sh` demos a simple bash script wrapping the python script and opening a text file if results are found that could be set up to be triggered through cron.

## Searching for parks other than Yosemite

### Get LOCATION_PAYLOAD request data
* Use your preferred proxy or network analyzer to capture requests (Charles Proxy, Wireshark, etc)
* Visit recreation.gov in your browser
* Enter target park name - click the park in the prefilled Auto-suggest dropdown that appears
* Find logs for the POST request to www.recreation.gov/unifSearch.do
* Copy the REQUEST body params as JSON into the `LOCATION_PAYLOAD` dict in `campsites.py`
* (keep the search results page open and continue to next section)

### Whitelist campsites by id in PARKS dict
* From the list of campgrounds and attractions listed in the results for your park, choose the campgrounds you'd like to stay at
* For each campground you choose, copy the campground's link URL
* Grab the parkId URL param and add it as a key to the PARKS dict in `campsites.py`, the value should be a human readable campground name.

yosemite-camping

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