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🧬 refactor: Wire Database Methods into MCP Package via Registry Pattern (#10715)

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* Refactor: MCPServersRegistry Singleton Pattern with Dependency Injection for DB methods consumption

* refactor: error handling in MCP initialization and improve logging for MCPServersRegistry instance creation.

- Added checks for mongoose instance in ServerConfigsDB constructor and refined error messages for clarity.
- Reorder and use type imports

---------

Co-authored-by: Atef Bellaaj <slalom.bellaaj@external.daimlertruck.com>
Co-authored-by: Danny Avila <danny@librechat.ai>
This commit is contained in:
Atef Bellaaj 2025-12-01 00:57:46 +01:00 • committed by Danny Avila
parent da473bf43a
commit ad6ba4b6d1
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24 changed files with 328 additions and 150 deletions
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31
api/server/services/MCP.spec.js
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@ -43,6 +43,11 @@ jest.mock('@librechat/agents', () => ({
},
}));
const mockRegistryInstance = {
getOAuthServers: jest.fn(() => Promise.resolve(new Set())),
getAllServerConfigs: jest.fn(() => Promise.resolve({})),
};
jest.mock('@librechat/api', () => ({
MCPOAuthHandler: {
generateFlowId: jest.fn(),
@ -50,9 +55,8 @@ jest.mock('@librechat/api', () => ({
sendEvent: jest.fn(),
normalizeServerName: jest.fn((name) => name),
convertWithResolvedRefs: jest.fn((params) => params),
mcpServersRegistry: {
getOAuthServers: jest.fn(() => Promise.resolve(new Set())),
getAllServerConfigs: jest.fn(() => Promise.resolve({})),
MCPServersRegistry: {
getInstance: () => mockRegistryInstance,
},
}));
@ -83,6 +87,7 @@ jest.mock('~/config', () => ({
getMCPManager: jest.fn(),
getFlowStateManager: jest.fn(),
getOAuthReconnectionManager: jest.fn(),
getMCPServersRegistry: jest.fn(() => mockRegistryInstance),
}));
jest.mock('~/cache', () => ({
@ -104,7 +109,6 @@ describe('tests for the new helper functions used by the MCP connection status e
let mockGetFlowStateManager;
let mockGetLogStores;
let mockGetOAuthReconnectionManager;
let mockMcpServersRegistry;
beforeEach(() => {
jest.clearAllMocks();
@ -113,7 +117,6 @@ describe('tests for the new helper functions used by the MCP connection status e
mockGetFlowStateManager = require('~/config').getFlowStateManager;
mockGetLogStores = require('~/cache').getLogStores;
mockGetOAuthReconnectionManager = require('~/config').getOAuthReconnectionManager;
mockMcpServersRegistry = require('@librechat/api').mcpServersRegistry;
});
describe('getMCPSetupData', () => {
@ -128,12 +131,12 @@ describe('tests for the new helper functions used by the MCP connection status e
appConnections: { getAll: jest.fn(() => new Map()) },
getUserConnections: jest.fn(() => new Map()),
});
mockMcpServersRegistry.getOAuthServers.mockResolvedValue(new Set());
mockMcpServersRegistry.getAllServerConfigs.mockResolvedValue(mockConfig);
mockRegistryInstance.getOAuthServers.mockResolvedValue(new Set());
mockRegistryInstance.getAllServerConfigs.mockResolvedValue(mockConfig);
});
it('should successfully return MCP setup data', async () => {
mockMcpServersRegistry.getAllServerConfigs.mockResolvedValue(mockConfig);
mockRegistryInstance.getAllServerConfigs.mockResolvedValue(mockConfig);
const mockAppConnections = new Map([['server1', { status: 'connected' }]]);
const mockUserConnections = new Map([['server2', { status: 'disconnected' }]]);
@ -144,15 +147,15 @@ describe('tests for the new helper functions used by the MCP connection status e
getUserConnections: jest.fn(() => mockUserConnections),
};
mockGetMCPManager.mockReturnValue(mockMCPManager);
mockMcpServersRegistry.getOAuthServers.mockResolvedValue(mockOAuthServers);
mockRegistryInstance.getOAuthServers.mockResolvedValue(mockOAuthServers);
const result = await getMCPSetupData(mockUserId);
expect(mockMcpServersRegistry.getAllServerConfigs).toHaveBeenCalledWith(mockUserId);
expect(mockRegistryInstance.getAllServerConfigs).toHaveBeenCalledWith(mockUserId);
expect(mockGetMCPManager).toHaveBeenCalledWith(mockUserId);
expect(mockMCPManager.appConnections.getAll).toHaveBeenCalled();
expect(mockMCPManager.getUserConnections).toHaveBeenCalledWith(mockUserId);
expect(mockMcpServersRegistry.getOAuthServers).toHaveBeenCalledWith(mockUserId);
expect(mockRegistryInstance.getOAuthServers).toHaveBeenCalledWith(mockUserId);
expect(result).toEqual({
mcpConfig: mockConfig,
@ -163,19 +166,19 @@ describe('tests for the new helper functions used by the MCP connection status e
});
it('should throw error when MCP config not found', async () => {
mockMcpServersRegistry.getAllServerConfigs.mockResolvedValue(null);
mockRegistryInstance.getAllServerConfigs.mockResolvedValue(null);
await expect(getMCPSetupData(mockUserId)).rejects.toThrow('MCP config not found');
});
it('should handle null values from MCP manager gracefully', async () => {
mockMcpServersRegistry.getAllServerConfigs.mockResolvedValue(mockConfig);
mockRegistryInstance.getAllServerConfigs.mockResolvedValue(mockConfig);
const mockMCPManager = {
appConnections: { getAll: jest.fn(() => Promise.resolve(null)) },
getUserConnections: jest.fn(() => null),
};
mockGetMCPManager.mockReturnValue(mockMCPManager);
mockMcpServersRegistry.getOAuthServers.mockResolvedValue(new Set());
mockRegistryInstance.getOAuthServers.mockResolvedValue(new Set());
const result = await getMCPSetupData(mockUserId);