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🚦 feat: Auto-reinitialize MCP Servers on Request (#9226)

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Danny Avila 2025-08-23 03:27:05 -04:00
parent ac608ded46
commit c827fdd10e
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28 changed files with 871 additions and 312 deletions
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26
packages/api/src/mcp/UserConnectionManager.ts
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@ -1,13 +1,8 @@
import { ErrorCode, McpError } from '@modelcontextprotocol/sdk/types.js';
import { logger } from '@librechat/data-schemas';
import type { TokenMethods } from '@librechat/data-schemas';
import type { TUser } from 'librechat-data-provider';
import type { FlowStateManager } from '~/flow/manager';
import type { MCPOAuthTokens } from '~/mcp/oauth';
import { ErrorCode, McpError } from '@modelcontextprotocol/sdk/types.js';
import { MCPConnectionFactory } from '~/mcp/MCPConnectionFactory';
import { MCPServersRegistry } from '~/mcp/MCPServersRegistry';
import { MCPConnection } from './connection';
import type { RequestBody } from '~/types';
import type * as t from './types';
/**
@ -44,8 +39,9 @@ export abstract class UserConnectionManager {
/** Gets or creates a connection for a specific user */
public async getUserConnection({
user,
serverName,
forceNew,
user,
flowManager,
customUserVars,
requestBody,
@ -54,25 +50,18 @@ export abstract class UserConnectionManager {
oauthEnd,
signal,
returnOnOAuth = false,
connectionTimeout,
}: {
user: TUser;
serverName: string;
flowManager: FlowStateManager<MCPOAuthTokens | null>;
customUserVars?: Record<string, string>;
requestBody?: RequestBody;
tokenMethods?: TokenMethods;
oauthStart?: (authURL: string) => Promise<void>;
oauthEnd?: () => Promise<void>;
signal?: AbortSignal;
returnOnOAuth?: boolean;
}): Promise<MCPConnection> {
forceNew?: boolean;
} & Omit<t.OAuthConnectionOptions, 'useOAuth'>): Promise<MCPConnection> {
const userId = user.id;
if (!userId) {
throw new McpError(ErrorCode.InvalidRequest, `[MCP] User object missing id property`);
}
const userServerMap = this.userConnections.get(userId);
let connection = userServerMap?.get(serverName);
let connection = forceNew ? undefined : userServerMap?.get(serverName);
const now = Date.now();
// Check if user is idle
@ -131,6 +120,7 @@ export abstract class UserConnectionManager {
oauthEnd: oauthEnd,
returnOnOAuth: returnOnOAuth,
requestBody: requestBody,
connectionTimeout: connectionTimeout,
},
);