A really simple way to use the Resy API to constantly check whether a given reservation is available on a given day. Future work can easily check for individual times by parsing the JSON response, but I don't have a need for it. Future work can also improve the data sent in the email to the user.
Run the script periodically on your local machine via crontab, or run it periodically on Lambda using EventBridge (CloudWatchEvents).
- requests
- json
- smtplib
This script uses only python standard libraries, however, requests is not a standard library on AWS, therefore this layer should be added. I recommend using Klayers, and if you're using Python 3.9 on us-east-1 you can use this ARN: arn:aws:lambda:us-east-1:770693421928:layer:Klayers-p39-requests:11.
One should replace the constants seen in request.py with their own values. I recommend generating the header by using inspect element on your browser, obtaining the HAR file of your request, and using har2requests.
Below is an example constants.py file:
SMTP_Password = "Password123"
SMTP_Username = "[email protected]"
SMTP_To = "[email protected]"
my_header = {API: "api_key", User-Agent: "my_computer"}The venue_id used in the GET request can also be obtained from your HAR file, in order to find the specific restaurant you wish to check for reservations.