Read config from file.

src/ZenohBridge.cpp

@@ -18,17 +18,17 @@ namespace j7s
 
 ZenohBridge::ZenohBridge(const rclcpp::NodeOptions & options) : Node("zenoh_bridge", options)
 {
-    // Should this be from a file?
-    // TODO: static inline Config from_file(const std::string &path, ZResult *err = nullptr)
-    auto config = zenoh::Config::create_default();
-    m_zenohSession = std::make_shared<zenoh::Session>(std::move(config));
-
     const auto emptyVector = std::vector<std::string>();
     const auto zenohSourceNames =
         this->declare_parameter<std::vector<std::string>>("zenoh_sources", emptyVector);
     const auto rosSourceNames =
         this->declare_parameter<std::vector<std::string>>("ros_sources", emptyVector);
 
+    const auto zenohConfigPath = this->declare_parameter<std::string>("zenoh_config_path");
+    auto config = zenoh::Config::from_file(zenohConfigPath);
+    m_zenohSession = std::make_shared<zenoh::Session>(std::move(config));
+
+
     // Make all the zenoh subs.
     for (const auto & source : zenohSourceNames)
     {

src/bin/get_default_config.cpp

@@ -0,0 +1,20 @@
+//
+// Copyright 2026 James Pace
+//
+// This Source Code Form is subject to the terms of the Mozilla Public
+// License, v. 2.0. If a copy of the MPL was not distributed with this
+// file, You can obtain one at https://mozilla.org/MPL/2.0/.
+//
+// This Source Code Form is "Incompatible With Secondary Licenses", as
+// defined by the Mozilla Public License, v. 2.0.
+//
+#include <fmt/core.h>
+#include "zenoh.hxx"
+
+
+int main(int, char **)
+{
+    const auto config = zenoh::Config::create_default();
+    const auto configJson = config.to_string();
+    std::cout << configJson << std::endl;
+}