This endpoint returns a single sale listing matching the specified internal id, if it exists. Property ids can be obtained via the
/listings endpoints, or cached in your application from prior requests.
The returned listing record will include data for a specific property, including its listed price, listing date, listing status, property attributes, and other listing information.
Property ids used by our API are case-sentive and should be provided in the same format as the
idfield contained in the responses from our API.