Srujan Narkedamalli created AVRO-2187:
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Summary: Add RPC Streaming constructs/keywords to Avro IDL or
schema
Key: AVRO-2187
URL: https://issues.apache.org/jira/browse/AVRO-2187
Project: Avro
Issue Type: New Feature
Reporter: Srujan Narkedamalli
Motivation:
We recently added support for transporting Avro serialization and IDL over gRPC
for Java. In order to use the streaming features of gRPC or any other transport
that supports streaming we need to be able to specify them IDL and schema.
Details:
Currently, gRPC supports 3 types of streaming calls:
# server streaming (server can send multiple responses for a single request)
# client streaming (client can multiple requests and server sends a single
response)
# bi-directional streaming call (on going rpc with multiple requests and
responses)
We would want a way to represent these types on calls in Avro's IDL similar to
one-way calls using a keywords. Usually in gRPC with other IDLs a streaming
request or response is repeated payload of same type. For client streaming and
bi-directional streaming it would be simpler to have a single request argument
when representing their type in callbacks.
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