Theodlz commented on issue #350:
URL: https://github.com/apache/avro-rs/issues/350#issuecomment-3612471306
I wonder if there is a more elegant solution, but I ended up writing the
following:
```rust
// Wrapper around cutout bytes, so we can implement AvroSchemaComponent
// for it, to serialize as bytes in Avro
#[derive(Debug, serde::Deserialize, serde::Serialize)]
pub struct CutoutBytes(Vec<u8>);
impl apache_avro::schema::derive::AvroSchemaComponent for CutoutBytes {
fn get_schema_in_ctxt(
_named_schemas: &mut HashMap<apache_avro::schema::Name,
apache_avro::schema::Schema>,
_enclosing_namespace: &apache_avro::schema::Namespace,
) -> apache_avro::Schema {
apache_avro::Schema::Bytes
}
}
pub fn serialize_cutout_bytes_option<S>(cutout: &Option<CutoutBytes>,
serializer: S) -> Result<S::Ok, S::Error>
where
S: serde::ser::Serializer,
{
match cutout {
Some(cutout_bytes) =>
apache_avro::serde_avro_bytes::serialize(&cutout_bytes.0, serializer),
None => serializer.serialize_none(),
}
}
```
then a struct would just use `CutoutBytes` in place of a Vec<u8> + the
serializer defined above, and the schema uses the `bytes` type + the data is
serialized to bytes.
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