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Add web socket protocol support for IDE MCP server (#987)

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Co-authored-by: matt korwel <matt.korwel@gmail.com>
This commit is contained in:
Shreya Keshive
2025-06-13 13:30:44 +00:00
committed by GitHub
parent ff478781ad
commit 1fcbdef994
5 changed files with 149 additions and 8 deletions
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19
packages/core/src/tools/mcp-client.ts
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@@ -12,6 +12,7 @@ import { MCPServerConfig } from '../config/config.js';
import { DiscoveredMCPTool } from './mcp-tool.js';
import { CallableTool, FunctionDeclaration, mcpToTool } from '@google/genai';
import { ToolRegistry } from './tool-registry.js';
import { WebSocketClientTransport } from './websocket-client-transport.js';
export const MCP_DEFAULT_TIMEOUT_MSEC = 10 * 60 * 1000; // default to 10 minutes
@@ -164,6 +165,8 @@ async function connectAndDiscover(
let transport;
if (mcpServerConfig.url) {
transport = new SSEClientTransport(new URL(mcpServerConfig.url));
} else if (mcpServerConfig.tcp) {
transport = new WebSocketClientTransport(new URL(mcpServerConfig.tcp));
} else if (mcpServerConfig.command) {
transport = new StdioClientTransport({
command: mcpServerConfig.command,
@@ -177,7 +180,7 @@ async function connectAndDiscover(
});
} else {
console.error(
`MCP server '${mcpServerName}' has invalid configuration: missing both url (for SSE) and command (for stdio). Skipping.`,
`MCP server '${mcpServerName}' has invalid configuration: missing url (for SSE), tcp (for websocket), and command (for stdio). Skipping.`,
);
// Update status to disconnected
updateMCPServerStatus(mcpServerName, MCPServerStatus.DISCONNECTED);
@@ -254,9 +257,11 @@ async function connectAndDiscover(
console.error(
`MCP server '${mcpServerName}' did not return valid tool function declarations. Skipping.`,
);
if (transport instanceof StdioClientTransport) {
await transport.close();
} else if (transport instanceof SSEClientTransport) {
if (
transport instanceof StdioClientTransport ||
transport instanceof SSEClientTransport ||
transport instanceof WebSocketClientTransport
) {
await transport.close();
}
// Update status to disconnected
@@ -315,7 +320,8 @@ async function connectAndDiscover(
// Ensure transport is cleaned up on error too
if (
transport instanceof StdioClientTransport ||
transport instanceof SSEClientTransport
transport instanceof SSEClientTransport ||
transport instanceof WebSocketClientTransport
) {
await transport.close();
}
@@ -334,7 +340,8 @@ async function connectAndDiscover(
);
if (
transport instanceof StdioClientTransport ||
transport instanceof SSEClientTransport
transport instanceof SSEClientTransport ||
transport instanceof WebSocketClientTransport
) {
await transport.close();
// Update status to disconnected