Move to 'avro-js' from 'avsc'

[snird]

avsc: https://www.npmjs.com/package/avsc
avro-js: https://www.npmjs.com/package/avro-js

avsc is lagging way behind in the protocol implementation. Its implementation is 1.8-ish compatible:
mtth/avsc#238

And it isn't seem to be worked on anymore.

avro-js is the official implementation, and is fully compatible with the latest 1.11.1:
https://github.com/apache/avro/tree/master/lang/js

The API of the libraries is compatible.
I hot-switched for avro-js in this fork:
https://github.com/snird/confluent-schema-registry-avro-js
(not ready or aimed to be ready for merge)

It works as expected and working on production load at the moment.

I see no reason not to move to avro-js in this repo.

[potyl]

I see that this issue is closed but there doesn't seem a corresponding PR. Is avro-js going to be replacing avsc?

@snird the repo https://github.com/snird/confluent-schema-registry-avro-js is gone.

[snird]

Avro-js does not support BigInt or something like that for big numbers.
So even though they implemented a more recent spec, it is effectively unusable in a production environment.
That's why I deleted this