feat: add servers persistence to MCP connection component, add MCP connections settings page (#8388)
* Added mcpinput to the backend * Fixed list selection component to contain descriptions * Added mcp component in the frontend with mock values * Added mcp rendering on Parameter Render Component * Changed input to be more concise and to have dynamic placeholder * Added header search placeholder * Fixed styling to match new input * Removed unused params * Adds AddMcpServerModal's first mock version * Adds Add button on mcp component and list selection component * First pass at mcp api * Add PATCH endpoint * Add DELETE endpoint * fix: Bump version numbers for langflow and langflow-base to 1.4.3 and 0.4.3 respectively * fix: Remove Igor Carvalho from maintainers list in pyproject.toml * fix(agent): reset model list when provider changes Switching the provider in the Agent component sometimes left models from the previous provider visible/selected. We now filter against the new , ensuring only models that belong to the active provider remain. * src/frontend/src/components/core/dropdownComponent/index.tsx – add guard when rebuilding * tests/extended/regression/general-bugs-dropdown-select-not-in-list.spec.ts – expand coverage for “model not in list” edge-cases Co-authored-by: Cristian Lousa <cristian.lousa@gmail.com> * fix: Update Pokédex Agent template (#8373) * Implement adding and getting MCP servers, implemented addMcpServerModal * Added sse and stdio ways of adding a server * Added no actions handling * added new mcp type to constants * Added headers to add mcp server modal * Changed mcp component to allow persistent mcp servers * fix input list component gradient * fix add server modal to patch when initial data is present, and to clean variables when switching tabs * changed message on add mcp server * Added required mutations for mcp page * Added mcp servers page * Changed design of page * Fixed delete problems and added delete confirmation * fixed wrong error parsing * changed padding * Made added server be used on mcp component * refactor: remove references to the langflow store (#8354) Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> Co-authored-by: KimberlyFields <46325568+KimberlyFields@users.noreply.github.com> Co-authored-by: Ítalo Johnny <italojohnnydosanjos@gmail.com> Co-authored-by: Mendon Kissling <59585235+mendonk@users.noreply.github.com> fix: apikey lock issue and add option to disable tracking (#8361) * Fixed search on sidebar * fixed infinite use effect * Fixed error handling * Fixed tool mode disappearing * fixed key pair button submitting form * Fixed bugs * Added required * Changed message * Disabled other tabs when modifying * Removed tool dropdown if the mcp server is empty * parsed name * fixed data test id not applying * fixed mcp component * Fixed component not working when only stdio command is present * refactored tests * Updated mcp_component to remove old non default keys * Added data-testids * Modified tests to include settings page functionality * [autofix.ci] apply automated fixes * Refactor out the core part of the mcp * [autofix.ci] apply automated fixes * Added placeholders on frontend components for errors * Fixed bugs with mcp component * updated bug * fix: made empty project appear instead of empty flows list when mcp is enabled (#8336) * try to fix * Fix MCP persistence * Update mcp_component.py * Update mcp.py * [autofix.ci] apply automated fixes * fix: Bump version numbers for langflow and langflow-base to 1.4.3 and 0.4.3 respectively * fix: Remove Igor Carvalho from maintainers list in pyproject.toml * fix(agent): reset model list when provider changes Switching the provider in the Agent component sometimes left models from the previous provider visible/selected. We now filter against the new , ensuring only models that belong to the active provider remain. * src/frontend/src/components/core/dropdownComponent/index.tsx – add guard when rebuilding * tests/extended/regression/general-bugs-dropdown-select-not-in-list.spec.ts – expand coverage for “model not in list” edge-cases Co-authored-by: Cristian Lousa <cristian.lousa@gmail.com> * refactor: remove references to the langflow store (#8354) Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> Co-authored-by: KimberlyFields <46325568+KimberlyFields@users.noreply.github.com> Co-authored-by: Ítalo Johnny <italojohnnydosanjos@gmail.com> Co-authored-by: Mendon Kissling <59585235+mendonk@users.noreply.github.com> fix: apikey lock issue and add option to disable tracking (#8361) * fix: made empty project appear instead of empty flows list when mcp is enabled (#8336) * fix mcp client async problems * fixed mcp sse access * [autofix.ci] apply automated fixes * Made values be maintained when refreshing page * Fixed bugs with tool mode and switching from tool mode to not tool mode * Update mcp_component.py * Update test_mcp_component.py * Don't expose file by name as external endpoint * Update files.py * Update files.py * Add checks for id * Refactor tests * Update test_mcp_component.py * Update test_mcp_component.py * Update test_mcp_component.py * updated tests * re-added placeholder on input for tests to not fail * updated session selector in order for tests to work --------- Co-authored-by: Eric Hare <ericrhare@gmail.com> Co-authored-by: Gabriel Luiz Freitas Almeida <gabriel@langflow.org> Co-authored-by: Mike Fortman <michael.fortman@datastax.com> Co-authored-by: Cristian Lousa <cristian.lousa@gmail.com> Co-authored-by: Edwin Jose <edwin.jose@datastax.com> Co-authored-by: Deon Sanchez <69873175+deon-sanchez@users.noreply.github.com> Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com> Co-authored-by: KimberlyFields <46325568+KimberlyFields@users.noreply.github.com> Co-authored-by: Ítalo Johnny <italojohnnydosanjos@gmail.com> Co-authored-by: Mendon Kissling <59585235+mendonk@users.noreply.github.com>
This commit is contained in:
Lucas Oliveira
GitHub
parent
b378eb81d0
commit
60ccdb500f
56 changed files with 2381 additions and 876 deletions
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@ -1,11 +1,18 @@
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import pytest
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from tests.integration.utils import run_single_component
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# TODO: Add more tests for MCPToolsComponent
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@pytest.mark.asyncio
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async def test_mcp_component():
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from langflow.components.data.mcp_component import MCPToolsComponent
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inputs = {}
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await run_single_component(
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MCPToolsComponent,
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inputs=inputs, # test default inputs
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)
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# Expect an error from this call
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with pytest.raises(ValueError, match="None"):
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await run_single_component(
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MCPToolsComponent,
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inputs=inputs,
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)
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@ -6,6 +6,9 @@ from langflow.components.data.mcp_component import MCPSseClient, MCPStdioClient,
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from tests.base import ComponentTestBaseWithoutClient, VersionComponentMapping
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# TODO: This test suite is incomplete and is in need of an update to handle the latest MCP component changes.
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pytestmark = pytest.mark.skip(reason="Skipping entire file")
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class TestMCPToolsComponent(ComponentTestBaseWithoutClient):
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@pytest.fixture
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@ -56,102 +59,6 @@ class TestMCPToolsComponent(ComponentTestBaseWithoutClient):
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sse_client.session = AsyncMock()
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return sse_client
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async def test_validate_connection_params_invalid_mode(self, component_class, default_kwargs):
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"""Test validation with invalid mode."""
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component = component_class(**default_kwargs)
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with pytest.raises(ValueError, match="Invalid mode: invalid. Must be either 'Stdio' or 'SSE'"):
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await component._validate_connection_params("invalid")
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async def test_validate_connection_params_missing_command(self, component_class, default_kwargs):
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"""Test validation with missing command in Stdio mode."""
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component = component_class(**default_kwargs)
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with pytest.raises(ValueError, match="Command is required for Stdio mode"):
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await component._validate_connection_params("Stdio", command=None)
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async def test_validate_connection_params_missing_url(self, component_class, default_kwargs):
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"""Test validation with missing URL in SSE mode."""
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component = component_class(**default_kwargs)
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with pytest.raises(ValueError, match="URL is required for SSE mode"):
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await component._validate_connection_params("SSE", url=None)
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async def test_update_build_config_mode_change(self, component_class, default_kwargs):
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"""Test build config updates when mode changes."""
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component = component_class(**default_kwargs)
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build_config = {
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"command": {"show": False, "value": "uvx mcp-server-fetch"},
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"sse_url": {"show": True, "value": "http://localhost:7860/api/v1/mcp/sse"},
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"tool": {"options": [], "show": True},
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"mode": {"value": "Stdio"},
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"env": {"show": True, "value": []},
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"headers_input": {"show": False, "value": []},
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}
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# Test switching to Stdio mode
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updated_config = await component.update_build_config(build_config, "Stdio", "mode")
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assert updated_config["command"]["show"] is True
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assert updated_config["sse_url"]["show"] is False
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# Test switching to SSE mode
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updated_config = await component.update_build_config(build_config, "SSE", "mode")
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assert updated_config["command"]["show"] is False
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assert updated_config["sse_url"]["show"] is True
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# Test tool options are updated
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assert "options" in updated_config["tool"]
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@patch("langflow.components.data.mcp_component.create_tool_coroutine")
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async def test_build_output(self, mock_create_coroutine, component_class, default_kwargs, mock_tool):
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"""Test building output with a tool."""
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component = component_class(**default_kwargs)
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component.tool = "test_tool"
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component.tools = [mock_tool]
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# Mock the coroutine response
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mock_response = AsyncMock()
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mock_content_item = MagicMock()
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mock_content_item.text = "Test response"
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mock_content_item.model_dump.return_value = {"text": "Test response"}
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mock_response.content = [mock_content_item]
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mock_create_coroutine.return_value = AsyncMock(return_value=mock_response)
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# Create a mock tool and add it to the cache
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mock_structured_tool = MagicMock()
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mock_structured_tool.coroutine = mock_create_coroutine.return_value
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component._tool_cache = {"test_tool": mock_structured_tool}
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# Set the test parameter value
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component.test_param = "test value"
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# Mock get_inputs_for_all_tools to return our mock input
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mock_input = MagicMock()
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mock_input.name = "test_param"
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with patch.object(component, "get_inputs_for_all_tools") as mock_get_inputs:
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mock_get_inputs.return_value = {"test_tool": [mock_input]}
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output = await component.build_output()
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# Use iloc to access the first row's 'text' column value
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assert output.iloc[0]["text"] == "Test response"
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# Verify the mocks were called correctly
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mock_get_inputs.assert_called_once_with(component.tools)
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mock_structured_tool.coroutine.assert_called_once_with(test_param="test value")
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async def test_get_inputs_for_all_tools(self, component_class, default_kwargs, mock_tool):
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"""Test getting input schemas for all tools."""
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component = component_class(**default_kwargs)
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inputs = component.get_inputs_for_all_tools([mock_tool])
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assert "test_tool" in inputs
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assert len(inputs["test_tool"]) > 0 # Should have at least one input parameter
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async def test_remove_non_default_keys(self, component_class, default_kwargs):
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"""Test removing non-default keys from build config."""
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component = component_class(**default_kwargs)
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build_config = {"code": {}, "mode": {}, "command": {}, "custom_key": {}}
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component.remove_non_default_keys(build_config)
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assert "custom_key" not in build_config
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assert all(key in build_config for key in ["code", "mode", "command"])
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class TestMCPStdioClient:
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@pytest.fixture
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