diff --git a/src/mcp/server/fastmcp/server.py b/src/mcp/server/fastmcp/server.py index 7d3d2ba..55d5a3c 100644 --- a/src/mcp/server/fastmcp/server.py +++ b/src/mcp/server/fastmcp/server.py @@ -133,8 +133,7 @@ class FastMCP: self._mcp_server.read_resource()(self.read_resource) self._mcp_server.list_prompts()(self.list_prompts) self._mcp_server.get_prompt()(self.get_prompt) - # TODO: This has not been added to MCP yet, see https://github.com/jlowin/fastmcp/issues/10 - # self._mcp_server.list_resource_templates()(self.list_resource_templates) + self._mcp_server.list_resource_templates()(self.list_resource_templates) async def list_tools(self) -> list[MCPTool]: """List all available tools.""" diff --git a/tests/issues/test_129_resource_templates.py b/tests/issues/test_129_resource_templates.py new file mode 100644 index 0000000..e6eff3d --- /dev/null +++ b/tests/issues/test_129_resource_templates.py @@ -0,0 +1,44 @@ +import pytest + +from mcp import types +from mcp.server.fastmcp import FastMCP + + +@pytest.mark.anyio +async def test_resource_templates(): + # Create an MCP server + mcp = FastMCP("Demo") + + # Add a dynamic greeting resource + @mcp.resource("greeting://{name}") + def get_greeting(name: str) -> str: + """Get a personalized greeting""" + return f"Hello, {name}!" + + @mcp.resource("users://{user_id}/profile") + def get_user_profile(user_id: str) -> str: + """Dynamic user data""" + return f"Profile data for user {user_id}" + + # Get the list of resource templates using the underlying server + # Note: list_resource_templates() returns a decorator that wraps the handler + # The handler returns a ServerResult with a ListResourceTemplatesResult inside + result = await mcp._mcp_server.request_handlers[types.ListResourceTemplatesRequest]( + types.ListResourceTemplatesRequest( + method="resources/templates/list", params=None, cursor=None + ) + ) + assert isinstance(result.root, types.ListResourceTemplatesResult) + templates = result.root.resourceTemplates + + # Verify we get both templates back + assert len(templates) == 2 + + # Verify template details + greeting_template = next(t for t in templates if t.name == "get_greeting") + assert greeting_template.uriTemplate == "greeting://{name}" + assert greeting_template.description == "Get a personalized greeting" + + profile_template = next(t for t in templates if t.name == "get_user_profile") + assert profile_template.uriTemplate == "users://{user_id}/profile" + assert profile_template.description == "Dynamic user data"