in src/utils/configUtils.js [397:412]
async function fetchSamplesAndCheckConfigForRawEventData(config: Object) {
const samples = await fetchSamples(config);
try {
checkConfigForRawEventData(
samples,
config.header,
config.mapping,
config.format,
config.customTypeInfo,
config.presetValues,
);
} catch (error) {
winston.error(`Invalid config: ${error}`);
process.exit(1);
}
}