Convert JSON to Avro

Twister pairs nicely with Jackson’s ObjectMapper since they both use POJOs.

Convert a JSON String to Avro Bytes

String jsonString = "{ \"id\": 1, \"name\": \"John Doe\" }";
Map<String, Object> personMap = new ObjectMapper().readValue(jsonString, Map.class);
ByteBuffer byteBuffer = new AvroWriter().write(personMap, "Person");

Infer an Avro Schema from JSON String

String jsonString = "{\"name\": \"John Doe\", \"age\": 30, \"isStudent\": true}";
Map<String, Object> personMap = new ObjectMapper().readValue(jsonString, Map.class);
Schema schema = new AvroSchemaInferrer().infer(personMap, "Person");