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Merged
antonpk1 merged 2 commits into from
Dec 8, 2025
Merged

Add optional stdio transport to marketing example servers #85

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e516b28
Add optional stdio transport to marketing example servers
antonpk1 Dec 8, 2025
d6ff3d9
fix: format cohort-heatmap-server console.log line
antonpk1 Dec 8, 2025
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85 changes: 48 additions & 37 deletions examples/budget-allocator-server/server.ts
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@
* and industry benchmarks by company stage.
*/
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { StreamableHTTPServerTransport } from "@modelcontextprotocol/sdk/server/streamableHttp.js";
import type {
CallToolResult,
Expand Down Expand Up @@ -292,50 +293,60 @@ server.registerResource(
);

// ---------------------------------------------------------------------------
// Express Server
// Server Startup
// ---------------------------------------------------------------------------

const app = express();
app.use(cors());
app.use(express.json());

app.post("/mcp", async (req: Request, res: Response) => {
try {
const transport = new StreamableHTTPServerTransport({
sessionIdGenerator: undefined,
enableJsonResponse: true,
async function main() {
if (process.argv.includes("--stdio")) {
const transport = new StdioServerTransport();
await server.connect(transport);
console.error("Budget Allocator Server running in stdio mode");
} else {
const app = express();
app.use(cors());
app.use(express.json());

app.post("/mcp", async (req: Request, res: Response) => {
try {
const transport = new StreamableHTTPServerTransport({
sessionIdGenerator: undefined,
enableJsonResponse: true,
});
res.on("close", () => {
transport.close();
});

await server.connect(transport);
await transport.handleRequest(req, res, req.body);
} catch (error) {
console.error("Error handling MCP request:", error);
if (!res.headersSent) {
res.status(500).json({
jsonrpc: "2.0",
error: { code: -32603, message: "Internal server error" },
id: null,
});
}
}
});
res.on("close", () => {
transport.close();

const httpServer = app.listen(PORT, () => {
console.log(
`Budget Allocator Server listening on http://localhost:${PORT}/mcp`,
);
});

await server.connect(transport);
await transport.handleRequest(req, res, req.body);
} catch (error) {
console.error("Error handling MCP request:", error);
if (!res.headersSent) {
res.status(500).json({
jsonrpc: "2.0",
error: { code: -32603, message: "Internal server error" },
id: null,
function shutdown() {
console.log("\nShutting down...");
httpServer.close(() => {
console.log("Server closed");
process.exit(0);
});
}
}
});

const httpServer = app.listen(PORT, () => {
console.log(
`Budget Allocator Server listening on http://localhost:${PORT}/mcp`,
);
});

function shutdown() {
console.log("\nShutting down...");
httpServer.close(() => {
console.log("Server closed");
process.exit(0);
});
process.on("SIGINT", shutdown);
process.on("SIGTERM", shutdown);
}
}

process.on("SIGINT", shutdown);
process.on("SIGTERM", shutdown);
main().catch(console.error);
83 changes: 48 additions & 35 deletions examples/cohort-heatmap-server/server.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { StreamableHTTPServerTransport } from "@modelcontextprotocol/sdk/server/streamableHttp.js";
import type { ReadResourceResult } from "@modelcontextprotocol/sdk/types.js";
import cors from "cors";
Expand Down Expand Up @@ -204,46 +205,58 @@ const server = new McpServer({
);
}

const app = express();
app.use(cors());
app.use(express.json());

app.post("/mcp", async (req: Request, res: Response) => {
try {
const transport = new StreamableHTTPServerTransport({
sessionIdGenerator: undefined,
enableJsonResponse: true,
});
res.on("close", () => {
transport.close();
async function main() {
if (process.argv.includes("--stdio")) {
const transport = new StdioServerTransport();
await server.connect(transport);
console.error("Cohort Heatmap Server running in stdio mode");
} else {
const app = express();
app.use(cors());
app.use(express.json());

app.post("/mcp", async (req: Request, res: Response) => {
try {
const transport = new StreamableHTTPServerTransport({
sessionIdGenerator: undefined,
enableJsonResponse: true,
});
res.on("close", () => {
transport.close();
});

await server.connect(transport);

await transport.handleRequest(req, res, req.body);
} catch (error) {
console.error("Error handling MCP request:", error);
if (!res.headersSent) {
res.status(500).json({
jsonrpc: "2.0",
error: { code: -32603, message: "Internal server error" },
id: null,
});
}
}
});

await server.connect(transport);
const httpServer = app.listen(PORT, () => {
console.log(
`Cohort Heatmap Server listening on http://localhost:${PORT}/mcp`,
);
});

await transport.handleRequest(req, res, req.body);
} catch (error) {
console.error("Error handling MCP request:", error);
if (!res.headersSent) {
res.status(500).json({
jsonrpc: "2.0",
error: { code: -32603, message: "Internal server error" },
id: null,
function shutdown() {
console.log("\nShutting down...");
httpServer.close(() => {
console.log("Server closed");
process.exit(0);
});
}
}
});

const httpServer = app.listen(PORT, () => {
console.log(`Server listening on http://localhost:${PORT}/mcp`);
});

function shutdown() {
console.log("\nShutting down...");
httpServer.close(() => {
console.log("Server closed");
process.exit(0);
});
process.on("SIGINT", shutdown);
process.on("SIGTERM", shutdown);
}
}

process.on("SIGINT", shutdown);
process.on("SIGTERM", shutdown);
main().catch(console.error);
85 changes: 48 additions & 37 deletions examples/customer-segmentation-server/server.ts
View file
Open in desktop
Original file line number Diff line number Diff line change
@@ -1,4 +1,5 @@
import { McpServer } from "@modelcontextprotocol/sdk/server/mcp.js";
import { StdioServerTransport } from "@modelcontextprotocol/sdk/server/stdio.js";
import { StreamableHTTPServerTransport } from "@modelcontextprotocol/sdk/server/streamableHttp.js";
import type {
CallToolResult,
Expand Down Expand Up @@ -103,48 +104,58 @@ const server = new McpServer({
);
}

const app = express();
app.use(cors());
app.use(express.json());

app.post("/mcp", async (req: Request, res: Response) => {
try {
const transport = new StreamableHTTPServerTransport({
sessionIdGenerator: undefined,
enableJsonResponse: true,
});
res.on("close", () => {
transport.close();
async function main() {
if (process.argv.includes("--stdio")) {
const transport = new StdioServerTransport();
await server.connect(transport);
console.error("Customer Segmentation Server running in stdio mode");
} else {
const app = express();
app.use(cors());
app.use(express.json());

app.post("/mcp", async (req: Request, res: Response) => {
try {
const transport = new StreamableHTTPServerTransport({
sessionIdGenerator: undefined,
enableJsonResponse: true,
});
res.on("close", () => {
transport.close();
});

await server.connect(transport);

await transport.handleRequest(req, res, req.body);
} catch (error) {
console.error("Error handling MCP request:", error);
if (!res.headersSent) {
res.status(500).json({
jsonrpc: "2.0",
error: { code: -32603, message: "Internal server error" },
id: null,
});
}
}
});

await server.connect(transport);
const httpServer = app.listen(PORT, () => {
console.log(
`Customer Segmentation Server listening on http://localhost:${PORT}/mcp`,
);
});

await transport.handleRequest(req, res, req.body);
} catch (error) {
console.error("Error handling MCP request:", error);
if (!res.headersSent) {
res.status(500).json({
jsonrpc: "2.0",
error: { code: -32603, message: "Internal server error" },
id: null,
function shutdown() {
console.log("\nShutting down...");
httpServer.close(() => {
console.log("Server closed");
process.exit(0);
});
}
}
});

const httpServer = app.listen(PORT, () => {
console.log(
`Customer Segmentation Server listening on http://localhost:${PORT}/mcp`,
);
});

function shutdown() {
console.log("\nShutting down...");
httpServer.close(() => {
console.log("Server closed");
process.exit(0);
});
process.on("SIGINT", shutdown);
process.on("SIGTERM", shutdown);
}
}

process.on("SIGINT", shutdown);
process.on("SIGTERM", shutdown);
main().catch(console.error);
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