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Treat all openapi routes as tools

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This commit is contained in:
Jeremiah Lowin 2025-06-10 14:42:10 -04:00
commit 094ead2a77
3 changed files with 22 additions and 80 deletions
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12
src/fastmcp/server/openapi.py
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@ -155,16 +155,10 @@ class RouteMap:
self.route_type = self.mcp_type
# Default route mappings as a list, where order determines priority
# Default route mapping: all routes become tools.
# Users can provide custom route_maps to override this behavior.
DEFAULT_ROUTE_MAPPINGS = [
# GET requests with path parameters go to ResourceTemplate
RouteMap(
methods=["GET"], pattern=r".*\{.*\}.*", mcp_type=MCPType.RESOURCE_TEMPLATE
),
# GET requests without path parameters go to Resource
RouteMap(methods=["GET"], pattern=r".*", mcp_type=MCPType.RESOURCE),
# All other HTTP methods go to Tool
RouteMap(methods="*", pattern=r".*", mcp_type=MCPType.TOOL),
RouteMap(mcp_type=MCPType.TOOL),
]

35
src/fastmcp/server/server.py
View file

@ -1551,28 +1551,11 @@ class FastMCP(Generic[LifespanResultT]):
route_map_fn: OpenAPIRouteMapFn | None = None,
mcp_component_fn: OpenAPIComponentFn | None = None,
mcp_names: dict[str, str] | None = None,
all_routes_as_tools: bool = False,
**settings: Any,
) -> FastMCPOpenAPI:
"""
Create a FastMCP server from an OpenAPI specification.
"""
from .openapi import FastMCPOpenAPI, MCPType, RouteMap
# Deprecated since 2.5.0
if all_routes_as_tools:
warnings.warn(
"The 'all_routes_as_tools' parameter is deprecated and will be removed in a future version. "
'Use \'route_maps=[RouteMap(methods="*", pattern=r".*", mcp_type=MCPType.TOOL)]\' instead.',
DeprecationWarning,
stacklevel=2,
)
if all_routes_as_tools and route_maps:
raise ValueError("Cannot specify both all_routes_as_tools and route_maps")
elif all_routes_as_tools:
route_maps = [RouteMap(methods="*", pattern=r".*", mcp_type=MCPType.TOOL)]
return FastMCPOpenAPI(
openapi_spec=openapi_spec,
@ -1593,7 +1576,6 @@ class FastMCP(Generic[LifespanResultT]):
route_map_fn: OpenAPIRouteMapFn | None = None,
mcp_component_fn: OpenAPIComponentFn | None = None,
mcp_names: dict[str, str] | None = None,
all_routes_as_tools: bool = False,
httpx_client_kwargs: dict[str, Any] | None = None,
**settings: Any,
) -> FastMCPOpenAPI:
@ -1601,22 +1583,7 @@ class FastMCP(Generic[LifespanResultT]):
Create a FastMCP server from a FastAPI application.
"""
from .openapi import FastMCPOpenAPI, MCPType, RouteMap
# Deprecated since 2.5.0
if all_routes_as_tools:
warnings.warn(
"The 'all_routes_as_tools' parameter is deprecated and will be removed in a future version. "
'Use \'route_maps=[RouteMap(methods="*", pattern=r".*", mcp_type=MCPType.TOOL)]\' instead.',
DeprecationWarning,
stacklevel=2,
)
if all_routes_as_tools and route_maps:
raise ValueError("Cannot specify both all_routes_as_tools and route_maps")
elif all_routes_as_tools:
route_maps = [RouteMap(methods="*", pattern=r".*", mcp_type=MCPType.TOOL)]
from .openapi import FastMCPOpenAPI
if httpx_client_kwargs is None:
httpx_client_kwargs = {}