Python Field validation example

This script validates that certain fields are in the POST request when creating records. If not, an exception is thrown and 500 error returned to the client. If the script exits normally with no exception being thrown, then the records will be written to the database and the post-process script, if any, will be run.

NOTE: DreamFactory Python scripting requires 'bunch' package to be installed on server. sudo pip install bunch

# POST /api/v2/db/_table/account triggers script db._table.account.post.pre_process
# This script runs BEFORE records are written to the db.
 
payload = event.request.payload
 
if(payload.resource):
    for record in payload.resource:
        if 'annual_revenue' not in record:
            raise ValueError('Missing field annual revenue')
        if record.annual_revenue <= 0:
            raise ValueError('Annual Revenue must be > 0')