We have a report, which fetches data from a REST webservice with beforeRender. Sometimes this data is empty - resulting in an empty report (a complete white pdf).

Is it possible to exit report generation in beforeRender (if REST response is empty) and send a 204 status to the calling client?

Here some code:

function beforeRender(req, res, done) {
    require('request')({
        rejectUnauthorized: false, //Fehlerbehebung: UNABLE_TO_VERIFY_LEAF_SIGNATURE
        url: 'https://someurl/api/v2/something',
        json: true,
        encoding: 'utf8',
        method: 'POST',
        headers: {
            'Authorization': 'Basic abc123',
            'X-DreamFactory-Api-Key': 'abc123',
            'Accept': 'application/json'
        },
        body: {
            "params": [{
                "name": "loginin",
                "param_type": "IN",
                "value": req.data.loginin
            }],
            "wrapper": "data"
        }
    }, function(err, response, body) {
        if (err) {
            return done(err);
        }
        req.data = { items: body };
        done();
    });
}

Reto E.