Any tips for how to get this kind of thing going for avro-c?
{"name": "item77", "type: ["null", "string"], "default": null }
When serializing generics from a schema.
On 7/20/20, 9:51 AM, "Brian Mcqueen" <[email protected]> wrote:
I found a great c lib that is built on avro-c I'll put in this thread for
future reference:
https://github.com/confluentinc/libserdes
and a related project showing how to use it:
https://github.com/edenhill/kafkacat
For my specific problem, there's no escaping the fact that I'll need to
parse my input and properly build an avro value that corresponds to the schema.
I'm thinking I'll wrap the generics and expose them via lua so users can
expect to handle arbitrary schemas.
I see one lua-avro out there and it seems way out-of-date and not likely
worth resurrection.
On 7/11/20, 7:52 PM, "Brian Mcqueen" <[email protected]> wrote:
In general I’ve got some lines coming in, and I’ll be parsing them into
a c-struct. Then I want to serialize it in avro. I don’t want to write a
custom implementation of the value interface unless I have to. I see some text
in the docs saying the generics should be good enough for most cases, but I
don’t see how I could take my populated c struct, and an instantiation of a
class and come out of it with something avro-encoded without me writing the
machinery.
I see this flow in section 4.2. Creating value instances:
· avro_generic_class_from_schema
· avro_generic_value_new· avro_generic_value_free And I
see in the example where they are messing with longs: ·
avro_schema_long· avro_value_set_long I can get my avro schema via this
kind of thing: · avro_schema_from_json_literal · But how can I
get the equivalent to avro_value_set_long? I don’t see a generic
avro_value_set.
Give me some good news. I want to go bang-boom and have my data
serialized. I want to be able to mess only with the avro spec and have the
serialization adapt by magic.
