feat: add digital object resource

src/mcp_cordra/server.py

@@ -1,12 +1,46 @@
 """MCP server for Cordra digital object repository."""
 
 import asyncio
+import json
 
 from mcp.server.fastmcp import FastMCP
 
+from .client import CordraClient, CordraClientError, CordraNotFoundError
+from .config import CordraConfig
+
 # Initialize the MCP server
 mcp = FastMCP("mcp-cordra")
 
+# Initialize Cordra client at startup
+config = CordraConfig()
+cordra_client = CordraClient(config)
+
+
+@mcp.resource("cordra://objects/{prefix}/{suffix}", name="cordra-object", description="Retrieve a Cordra digital object by ID")
+async def get_cordra_object(prefix: str, suffix: str) -> str:
+    """Retrieve a Cordra digital object by its ID.
+    
+    Args:
+        prefix: The prefix part of the object ID (e.g., 'wildlive')
+        suffix: The suffix part of the object ID (e.g., '7a4b7b65f8bb155ad36d')
+        
+    Returns:
+        JSON representation of the digital object
+        
+    Raises:
+        RuntimeError: If the object is not found or there's an API error
+    """
+    object_id = f"{prefix}/{suffix}"
+    try:
+        digital_object = await cordra_client.get_object(object_id)
+        object_dict = digital_object.model_dump()
+        return json.dumps(object_dict, indent=2)
+
+    except CordraNotFoundError as e:
+        raise RuntimeError(f"Object not found: {object_id}") from e
+    except CordraClientError as e:
+        raise RuntimeError(f"Failed to retrieve object {object_id}: {e}") from e
+
 
 @mcp.tool()
 async def ping() -> str: