smitty-codes

// Invoice class generated from a avro protocol file (.avpr) using the nuget package Apache.Avro.Tools
Invoice invoice = new Invoice();
invoice.invoiceno = 123;
// ...(more invoice properties set here)

// set destination
string filePath = String.Format(@"C:\AvroInvoices\{0}.avro", invoice.invoiceNo);

// write avro schemaless file - logic adapted from https://stackoverflow.com/q/36793657/194872
SpecificDatumWriter<Invoice> writer = new SpecificDatumWriter<Invoice>(Invoice._SCHEMA);