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-rw-r--r--tvix/store/build.rs1
-rw-r--r--tvix/store/default.nix1
-rw-r--r--tvix/store/protos/rpc_blobstore.proto32
3 files changed, 34 insertions, 0 deletions
diff --git a/tvix/store/build.rs b/tvix/store/build.rs
index cc0bf22930a1..4c2e7d59d61b 100644
--- a/tvix/store/build.rs
+++ b/tvix/store/build.rs
@@ -5,6 +5,7 @@ fn main() -> Result<()> {
         &[
             "tvix/store/protos/castore.proto",
             "tvix/store/protos/pathinfo.proto",
+            "tvix/store/protos/rpc_blobstore.proto",
         ],
         // If we are in running `cargo build` manually, using `../..` works fine,
         // but in case we run inside a nix build, we need to instead point PROTO_ROOT
diff --git a/tvix/store/default.nix b/tvix/store/default.nix
index 8fb80ee27bb6..23916c6b57f6 100644
--- a/tvix/store/default.nix
+++ b/tvix/store/default.nix
@@ -4,6 +4,7 @@ let
   protoRoot = depot.nix.sparseTree depot.path.origSrc [
     ./protos/castore.proto
     ./protos/pathinfo.proto
+    ./protos/rpc_blobstore.proto
   ];
 
   protobufDep = prev: (prev.nativeBuildInputs or [ ]) ++ [ pkgs.protobuf ];
diff --git a/tvix/store/protos/rpc_blobstore.proto b/tvix/store/protos/rpc_blobstore.proto
new file mode 100644
index 000000000000..49a6b974f061
--- /dev/null
+++ b/tvix/store/protos/rpc_blobstore.proto
@@ -0,0 +1,32 @@
+// SPDX-License-Identifier: MIT
+// Copyright © 2022 The Tvix Authors
+syntax = "proto3";
+
+package tvix.store.v1;
+
+service BlobService {
+    rpc Get(GetBlobRequest) returns (GetBlobResponse);
+    rpc Put(PutBlobRequest) returns (PutBlobResponse);
+
+    // TODO(flokli): We can get fancy here, and add methods to retrieve
+    // [Bao](https://github.com/oconnor663/bao/blob/master/docs/spec.md), and
+    // then support range requests, but that's left for later.
+}
+
+message GetBlobRequest {
+    // The blake3 digest of the blob requested
+    bytes digest = 1;
+}
+
+message GetBlobResponse {
+    bytes data = 1;
+}
+
+message PutBlobRequest {
+    bytes data = 1;
+}
+
+message PutBlobResponse {
+    // The blake3 digest of the data that was sent.
+    bytes digest = 1;
+}