Handle metadata for get_configuration and subscribe_configuration (#118)

* Add metadata parameter for config get and subscribe

Signed-off-by: David Blackwood <david.blackwood@rockwellautomation.com>

* Bump version

Signed-off-by: David Blackwood <david.blackwood@rockwellautomation.com>

* Revert "Bump version"

This reverts commit 77470758de.

Signed-off-by: David Blackwood <david.blackwood@rockwellautomation.com>

* Revert "Bump version"

This reverts commit 77470758de.

Signed-off-by: David Blackwood <david.blackwood@rockwellautomation.com>

---------

Signed-off-by: David Blackwood <david.blackwood@rockwellautomation.com>

examples/configuration/main.rs

@@ -20,14 +20,14 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
 
     // save key-value pair in the state store
     let response = client
-        .get_configuration(CONFIGSTORE_NAME, vec![(&key)])
+        .get_configuration(CONFIGSTORE_NAME, vec![(&key)], None)
         .await?;
     let val = response.items.get("hello").unwrap();
     println!("Configuration value: {val:?}");
 
     // Subscribe for configuration changes
     let mut stream = client
-        .subscribe_configuration(CONFIGSTORE_NAME, vec![(&key)])
+        .subscribe_configuration(CONFIGSTORE_NAME, vec![(&key)], None)
         .await?;
 
     let mut subscription_id = String::new();

src/client.rs

@@ -311,6 +311,7 @@ impl<T: DaprInterface> Client<T> {
         &mut self,
         store_name: S,
         keys: Vec<K>,
+        metadata: Option<HashMap<String, String>>,
     ) -> Result<GetConfigurationResponse, Error>
     where
         S: Into<String>,
@@ -319,7 +320,7 @@ impl<T: DaprInterface> Client<T> {
         let request = GetConfigurationRequest {
             store_name: store_name.into(),
             keys: keys.into_iter().map(|key| key.into()).collect(),
-            metadata: Default::default(),
+            metadata: metadata.unwrap_or_default(),
         };
         self.0.get_configuration(request).await
     }
@@ -329,6 +330,7 @@ impl<T: DaprInterface> Client<T> {
         &mut self,
         store_name: S,
         keys: Vec<S>,
+        metadata: Option<HashMap<String, String>>,
     ) -> Result<Streaming<SubscribeConfigurationResponse>, Error>
     where
         S: Into<String>,
@@ -336,7 +338,7 @@ impl<T: DaprInterface> Client<T> {
         let request = SubscribeConfigurationRequest {
             store_name: store_name.into(),
             keys: keys.into_iter().map(|key| key.into()).collect(),
-            metadata: Default::default(),
+            metadata: metadata.unwrap_or_default(),
         };
         self.0.subscribe_configuration(request).await
     }