package envoy.extensions.filters.http.proto_message_extraction.v3

This message can be used to support per route config approach later even though the Istio doesn't support that so far.

map<string, MethodExtraction.ExtractDirective> request_extraction_by_field = 2
The mapping of field path to its ExtractDirective for request messages
map<string, MethodExtraction.ExtractDirective> response_extraction_by_field = 3
The mapping of field path to its ExtractDirective for response messages

ExtractDirective_UNSPECIFIED = 0
EXTRACT = 1
The value of this field will be extracted.
EXTRACT_REDACT = 2
It should be only annotated on Message type fields so if the field isn't empty, an empty Struct will be extracted.

oneof descriptor_set
The proto descriptor set binary for the gRPC services.
- config.core.v3.DataSource data_source = 1
  It could be passed by a local file through ``Datasource.filename`` or embedded in the ``Datasource.inline_bytes``.
- string proto_descriptor_typed_metadata = 2
  Unimplemented, the key of proto descriptor TypedMetadata. Among filters depending on the proto descriptor, we can have a TypedMetadata for proto descriptors, so that these filters can share one copy of proto descriptor in memory.
ProtoMessageExtractionConfig.ExtractMode mode = 3
map<string, MethodExtraction> extraction_by_method = 4
Specify the message extraction info. The key is the fully qualified gRPC method name. ``${package}.${Service}.${Method}``, like ``endpoints.examples.bookstore.BookStore.GetShelf`` The value is the message extraction information for individual gRPC methods.

ExtractMode_UNSPECIFIED = 0
FIRST_AND_LAST = 1
The filter will extract the first and the last message for for streaming cases, containing client-side streaming, server-side streaming or bi-directional streaming.

message MethodExtraction