how to create a ".avsc" file from avro header ?
Does the first line of content is a avsc file for that avro? Or does the avsc content should starts from : {"type":"record" upto "}avro?
I tried the above mentioned 2 steps but not able to generate expected avsc file?
There are different ways to do this. You can to use using avro-tools like this
avro-tools -getschema youravrofile
Or programatically like this
DatumReader<GenericRecord> datumReader = new GenericDatumReader<>();
DataFileReader<GenericRecord> dataFileReader = new DataFileReader<>(new File("yourfile.avro"), datumReader);
Schema schema = dataFileReader.getSchema();
System.out.println(schema); // this will print the schema for you