Merge pull request #369 from BYTES-TECHES/caching

Fixed Issue #305

Author: Mystery-CLI

config/base.toml

@@ -33,6 +33,11 @@ blacklist = []
 base_dir = "./uploads"
 max_file_size_mb = 10
 
+[cache]
+redis_url = ""
+default_ttl_secs = 30
+events_ttl_secs = 10
+
 [notification]
 email_api_url = "https://api.sendgrid.com"
 email_api_key = ""

indexer/README.md

@@ -10,6 +10,7 @@ A high-performance event indexing service for the Stellar Escrow smart contract
 - **WebSocket Streaming**: Real-time event broadcasting to connected clients
 - **Event Replay**: Replay historical events for catch-up or analysis
 - **Configurable**: Flexible configuration for different networks and contracts
+- **Redis Caching**: Read-through caching, invalidation, monitoring, and warming for hot API paths
 
 ## Architecture
 
@@ -156,6 +157,14 @@ port = 3000
 url = "postgres://user:password@localhost/stellar_escrow"
 ```
 
+### Cache Configuration
+```toml
+[cache]
+redis_url = "redis://:password@localhost:6379"
+default_ttl_secs = 30
+events_ttl_secs = 10
+```
+
 ### Stellar Configuration
 ```toml
 [stellar]
@@ -210,4 +219,4 @@ The service provides health check endpoints and comprehensive logging. Monitor:
 
 ## License
 
-This project is licensed under the MIT License.
+This project is licensed under the MIT License.

indexer/src/cache.rs

@@ -81,4 +81,8 @@ impl Cache {
             let _: Result<(), _> = redis::cmd("DEL").arg(&keys).query_async(&mut conn).await;
         }
     }
+
+    pub fn is_connected(&self) -> bool {
+        self.client.is_some()
+    }
 }