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Akka gRPC - Support for building streaming gRPC servers and clients on top of Akka Streams.

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syntax = "proto3";

package envoy.api.v2;

import "envoy/api/v2/discovery.proto";

import "google/api/annotations.proto";

import "envoy/annotations/resource.proto";
import "udpa/annotations/migrate.proto";
import "udpa/annotations/status.proto";

import public "envoy/api/v2/listener.proto";

option java_package = "io.envoyproxy.envoy.api.v2";
option java_outer_classname = "LdsProto";
option java_multiple_files = true;
option go_package = "github.com/envoyproxy/go-control-plane/envoy/api/v2;apiv2";
option java_generic_services = true;
option (udpa.annotations.file_migrate).move_to_package = "envoy.service.listener.v3";
option (udpa.annotations.file_status).package_version_status = FROZEN;

// [#protodoc-title: Listener]
// Listener :ref:`configuration overview `

// The Envoy instance initiates an RPC at startup to discover a list of
// listeners. Updates are delivered via streaming from the LDS server and
// consist of a complete update of all listeners. Existing connections will be
// allowed to drain from listeners that are no longer present.
service ListenerDiscoveryService {
  option (envoy.annotations.resource).type = "envoy.api.v2.Listener";

  rpc DeltaListeners(stream DeltaDiscoveryRequest) returns (stream DeltaDiscoveryResponse) {
  }

  rpc StreamListeners(stream DiscoveryRequest) returns (stream DiscoveryResponse) {
  }

  rpc FetchListeners(DiscoveryRequest) returns (DiscoveryResponse) {
    option (google.api.http).post = "/v2/discovery:listeners";
    option (google.api.http).body = "*";
  }
}

// [#not-implemented-hide:] Not configuration. Workaround c++ protobuf issue with importing
// services: https://github.com/google/protobuf/issues/4221 and protoxform to upgrade the file.
message LdsDummy {
}