Add endpoint get_version_info

README.md

@@ -421,6 +421,31 @@ Soroban.RPC.get_ledger_entries(server, keys)
 
 ```
 
+#### Get Version Info
+
+Version information about the RPC and Captive core.
+
+**Parameters**
+
+- `server`: `Soroban.RPC.Server` struct - The Soroban-RPC server to interact with.
+
+**Example**
+
+```elixir
+server = Soroban.RPC.Server.testnet()
+Soroban.RPC.get_version_info(server)
+
+{:ok,
+ %Soroban.RPC.GetVersionInfoResponse{
+   version: "21.4.0-dbb390c6bb99024122fccb12c8219af67d50db04",
+   commit_hash: "dbb390c6bb99024122fccb12c8219af67d50db04",
+   build_time_stamp: "2024-07-10T14:50:09",
+   captive_core_version: "stellar-core 21.1.1 (b3aeb14cc798f6d11deb2be913041be916f3b0cc)",
+   protocol_version: 21
+ }}
+
+```
+
 #### Get Events
 
 Clients can request a filtered list of events emitted by a given ledger range.

lib/rpc.ex

@@ -11,6 +11,7 @@ defmodule Soroban.RPC do
     GetLedgerEntriesResponse,
     GetNetwork,
     GetTransaction,
+    GetVersionInfo,
     SendTransaction,
     SimulateTransaction
   }
@@ -41,6 +42,7 @@ defmodule Soroban.RPC do
   defdelegate get_health(server), to: GetHealth, as: :request
   defdelegate get_latest_ledger(server), to: GetLatestLedger, as: :request
   defdelegate get_network(server), to: GetNetwork, as: :request
+  defdelegate get_version_info(server), to: GetVersionInfo, as: :request
 
   defp encode_xdr(%LedgerKey{} = ledger_key) do
     ledger_key

lib/rpc/endpoints/get_version_info.ex

@@ -0,0 +1,19 @@
+defmodule Soroban.RPC.GetVersionInfo do
+  @moduledoc """
+  GetVersionInfo request implementation for Soroban RPC.
+  """
+  @behaviour Soroban.RPC.Endpoint.Spec
+
+  alias Soroban.RPC.{GetVersionInfoResponse, Request}
+
+  @endpoint "getVersionInfo"
+
+  @impl true
+  def request(server, _params \\ nil) do
+    server
+    |> Request.new(@endpoint)
+    |> Request.add_headers([{"Content-Type", "application/json"}])
+    |> Request.perform()
+    |> Request.results(as: GetVersionInfoResponse)
+  end
+end

lib/rpc/responses/get_version_info_response.ex

@@ -0,0 +1,24 @@
+defmodule Soroban.RPC.GetVersionInfoResponse do
+  @moduledoc """
+  `GetVersionInfoResponse` struct definition.
+  """
+  @behaviour Soroban.RPC.Response.Spec
+
+  @type version :: String.t()
+  @type commit_hash :: String.t()
+  @type build_time_stamp :: String.t()
+  @type captive_core_version :: String.t()
+  @type protocol_version :: non_neg_integer()
+  @type t :: %__MODULE__{
+          version: version(),
+          commit_hash: commit_hash(),
+          build_time_stamp: build_time_stamp(),
+          captive_core_version: captive_core_version(),
+          protocol_version: protocol_version()
+        }
+
+  defstruct [:version, :commit_hash, :build_time_stamp, :captive_core_version, :protocol_version]
+
+  @impl true
+  def new(attrs), do: struct(%__MODULE__{}, attrs)
+end

test/rpc/endpoints/get_version_info_test.exs

@@ -0,0 +1,50 @@
+defmodule Soroban.RPC.CannedGetVersionInfoClientImpl do
+  @moduledoc false
+  @behaviour Soroban.RPC.Client.Spec
+
+  @impl true
+  def request(_endpoint, _url, _headers, _body, _opts) do
+    send(self(), {:request, "RESPONSE"})
+
+    {:ok,
+     %{
+       version: "21.1.0",
+       commit_hash: "fcd2f0523f04279bae4502f3e3fa00ca627e6f6a",
+       build_time_stamp: "2024-05-10T11:18:38",
+       captive_core_version: "stellar-core 21.0.0.rc2 (c6f474133738ae5f6d11b07963ca841909210273)",
+       protocol_version: 21
+     }}
+  end
+end
+
+defmodule Soroban.RPC.GetVersionInfoTest do
+  use ExUnit.Case
+
+  alias Soroban.RPC.{
+    CannedGetVersionInfoClientImpl,
+    GetVersionInfo,
+    GetVersionInfoResponse,
+    Server
+  }
+
+  setup do
+    Application.put_env(:soroban, :http_client_impl, CannedGetVersionInfoClientImpl)
+
+    on_exit(fn ->
+      Application.delete_env(:soroban, :http_client_impl)
+    end)
+
+    %{server: Server.testnet()}
+  end
+
+  test "request/1", %{server: server} do
+    {:ok,
+     %GetVersionInfoResponse{
+       version: "21.1.0",
+       commit_hash: "fcd2f0523f04279bae4502f3e3fa00ca627e6f6a",
+       build_time_stamp: "2024-05-10T11:18:38",
+       captive_core_version: "stellar-core 21.0.0.rc2 (c6f474133738ae5f6d11b07963ca841909210273)",
+       protocol_version: 21
+     }} = GetVersionInfo.request(server)
+  end
+end

test/rpc/responses/get_versions_info_test.exs

@@ -0,0 +1,39 @@
+defmodule Soroban.RPC.GetVetsionInfoResponseTest do
+  use ExUnit.Case
+
+  alias Soroban.RPC.GetVersionInfoResponse
+
+  setup do
+    %{
+      result: %{
+        version: "21.1.0",
+        commit_hash: "fcd2f0523f04279bae4502f3e3fa00ca627e6f6a",
+        build_time_stamp: "2024-05-10T11:18:38",
+        captive_core_version:
+          "stellar-core 21.0.0.rc2 (c6f474133738ae5f6d11b07963ca841909210273)",
+        protocol_version: 21
+      }
+    }
+  end
+
+  describe "new/1" do
+    test "when successful transaction", %{
+      result:
+        %{
+          version: version,
+          commit_hash: commit_hash,
+          build_time_stamp: build_time_stamp,
+          captive_core_version: captive_core_version,
+          protocol_version: protocol_version
+        } = result
+    } do
+      %GetVersionInfoResponse{
+        version: ^version,
+        commit_hash: ^commit_hash,
+        build_time_stamp: ^build_time_stamp,
+        captive_core_version: ^captive_core_version,
+        protocol_version: ^protocol_version
+      } = GetVersionInfoResponse.new(result)
+    end
+  end
+end

test/rpc_test.exs

@@ -226,6 +226,25 @@ defmodule Soroban.RPC.CannedRPCGetTransactionClientImpl do
   end
 end
 
+defmodule Soroban.RPC.CannedRPCGetVersionInfoClientImpl do
+  @moduledoc false
+  @behaviour Soroban.RPC.Client.Spec
+
+  @impl true
+  def request(_endpoint, _url, _headers, _body, _opts) do
+    send(self(), {:request, "RESPONSE"})
+
+    {:ok,
+     %{
+       version: "21.1.0",
+       commit_hash: "fcd2f0523f04279bae4502f3e3fa00ca627e6f6a",
+       build_time_stamp: "2024-05-10T11:18:38",
+       captive_core_version: "stellar-core 21.0.0.rc2 (c6f474133738ae5f6d11b07963ca841909210273)",
+       protocol_version: 21
+     }}
+  end
+end
+
 defmodule Soroban.RPCTest do
   use ExUnit.Case
 
@@ -239,6 +258,7 @@ defmodule Soroban.RPCTest do
     CannedRPCGetLedgerEntriesForAccountClientImpl,
     CannedRPCGetNetworkClientImpl,
     CannedRPCGetTransactionClientImpl,
+    CannedRPCGetVersionInfoClientImpl,
     CannedRPCSendTransactionClientImpl,
     CannedRPCSimulateTransactionClientImpl,
     EventFilter,
@@ -519,4 +539,26 @@ defmodule Soroban.RPCTest do
        }} = RPC.get_events(server, event)
     end
   end
+
+  describe "get_version_info/1" do
+    setup do
+      Application.put_env(:soroban, :http_client_impl, CannedRPCGetVersionInfoClientImpl)
+
+      on_exit(fn ->
+        Application.delete_env(:soroban, :http_client_impl)
+      end)
+    end
+
+    test "request/1", %{server: server} do
+      {:ok,
+       %{
+         version: "21.1.0",
+         commit_hash: "fcd2f0523f04279bae4502f3e3fa00ca627e6f6a",
+         build_time_stamp: "2024-05-10T11:18:38",
+         captive_core_version:
+           "stellar-core 21.0.0.rc2 (c6f474133738ae5f6d11b07963ca841909210273)",
+         protocol_version: 21
+       }} = RPC.get_version_info(server)
+    end
+  end
 end