fix(ark-metadata): make elasticsearch optionnal (#426)

## Description

1. make elasticsearch optionnal

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## What type of PR is this? (check all applicable)

- [ ] 🍕 Feature (`feat:`)
- [ ] 🐛 Bug Fix (`fix:`)
- [ ] 📝 Documentation Update (`docs:`)
- [ ] 🎨 Style (`style:`)
- [ ] 🧑‍💻 Code Refactor (`refactor:`)
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- [ ] ✅ Test (`test:`)
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## Added tests?

- [ ] 👍 yes
- [ ] 🙅 no, because they aren't needed
- [ ] 🙋 no, because I need help

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- [ ] 📜 README.md
- [ ] 📓 Documentation
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crates/ark-metadata/src/elasticsearch_manager.rs

@@ -1,5 +1,6 @@
 use crate::types::{RequestError, TokenMetadata};
 use async_trait::async_trait;
+pub struct NoOpElasticsearchManager;
 
 #[cfg(any(test, feature = "mock"))]
 use mockall::automock;
@@ -15,3 +16,16 @@ pub trait ElasticsearchManager {
         metadata: TokenMetadata,
     ) -> Result<(), RequestError>;
 }
+
+#[async_trait]
+impl ElasticsearchManager for NoOpElasticsearchManager {
+    async fn upsert_token_metadata(
+        &self,
+        _contract_address: &str,
+        _token_id: &str,
+        _chain_id: &str,
+        _metadata: TokenMetadata,
+    ) -> Result<(), RequestError> {
+        Ok(())
+    }
+}

crates/ark-metadata/src/metadata_manager.rs

@@ -1,3 +1,4 @@
+use crate::elasticsearch_manager::NoOpElasticsearchManager;
 use crate::{
     elasticsearch_manager::ElasticsearchManager,
     file_manager::{FileInfo, FileManager},
@@ -24,13 +25,13 @@ pub struct MetadataManager<
     T: Storage,
     C: StarknetClient,
     F: FileManager,
-    E: ElasticsearchManager,
+    E: ElasticsearchManager = NoOpElasticsearchManager,
 > {
     storage: &'a T,
     starknet_client: &'a C,
     request_client: ReqwestClient,
     file_manager: &'a F,
-    elasticsearch_manager: &'a E,
+    elasticsearch_manager: Option<&'a E>,
 }
 
 pub struct MetadataMedia {
@@ -70,7 +71,7 @@ impl<'a, T: Storage, C: StarknetClient, F: FileManager, E: ElasticsearchManager>
         storage: &'a T,
         starknet_client: &'a C,
         file_manager: &'a F,
-        elasticsearch_manager: &'a E,
+        elasticsearch_manager: Option<&'a E>,
     ) -> Self {
         MetadataManager {
             storage,
@@ -185,10 +186,12 @@ impl<'a, T: Storage, C: StarknetClient, F: FileManager, E: ElasticsearchManager>
             .await
             .map_err(MetadataError::DatabaseError)?;
 
-        self.elasticsearch_manager
-            .upsert_token_metadata(contract_address, token_id, chain_id, token_metadata)
-            .await
-            .map_err(|e| MetadataError::ElasticSearchError(e.to_string()))?;
+        if let Some(elasticsearch_manager) = self.elasticsearch_manager {
+            elasticsearch_manager
+                .upsert_token_metadata(contract_address, token_id, chain_id, token_metadata)
+                .await
+                .map_err(|e| MetadataError::ElasticSearchError(e.to_string()))?;
+        }
 
         Ok(())
     }
@@ -496,7 +499,7 @@ mod tests {
             &storage_manager,
             &mock_client,
             &mock_file,
-            &mock_elasticsearch_manager,
+            Some(&mock_elasticsearch_manager),
         );
 
         // EXECUTION: Call the function under test
@@ -580,7 +583,7 @@ mod tests {
             &mock_storage,
             &mock_client,
             &mock_file,
-            &mock_elasticsearch_manager,
+            Some(&mock_elasticsearch_manager),
         );
 
         // EXECUTION: Call the function under test
@@ -633,7 +636,7 @@ mod tests {
             &storage_manager,
             &mock_client,
             &mock_file,
-            &mock_elasticsearch_manager,
+            Some(&mock_elasticsearch_manager),
         );
 
         // EXECUTION: Call the function under test