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fix(examples): use 404 status for invalid session IDs #1560

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fix(examples): use 404 status for invalid session IDs #1560

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8 changes: 4 additions & 4 deletions examples/server/src/elicitationFormExample.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -361,11 +361,11 @@ async function main() {
return;
} else {
// Invalid request - no session ID or not initialization request
res.status(400).json({
res.status(404).json({
jsonrpc: '2.0',
error: {
code: -32_000,
message: 'Bad Request: No valid session ID provided'
message: 'Not Found: No valid session ID provided'
},
id: null
});
Expand Down Expand Up @@ -395,7 +395,7 @@ async function main() {
const mcpGetHandler = async (req: Request, res: Response) => {
const sessionId = req.headers['mcp-session-id'] as string | undefined;
if (!sessionId || !transports[sessionId]) {
res.status(400).send('Invalid or missing session ID');
res.status(404).send('Invalid or missing session ID');
return;
}

Expand All @@ -410,7 +410,7 @@ async function main() {
const mcpDeleteHandler = async (req: Request, res: Response) => {
const sessionId = req.headers['mcp-session-id'] as string | undefined;
if (!sessionId || !transports[sessionId]) {
res.status(400).send('Invalid or missing session ID');
res.status(404).send('Invalid or missing session ID');
return;
}

Expand Down
8 changes: 4 additions & 4 deletions examples/server/src/elicitationUrlExample.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -608,11 +608,11 @@ const mcpPostHandler = async (req: Request, res: Response) => {
return; // Already handled
} else {
// Invalid request - no session ID or not initialization request
res.status(400).json({
res.status(404).json({
jsonrpc: '2.0',
error: {
code: -32_000,
message: 'Bad Request: No valid session ID provided'
message: 'Not Found: No valid session ID provided'
},
id: null
});
Expand Down Expand Up @@ -644,7 +644,7 @@ app.post('/mcp', authMiddleware, mcpPostHandler);
const mcpGetHandler = async (req: Request, res: Response) => {
const sessionId = req.headers['mcp-session-id'] as string | undefined;
if (!sessionId || !transports[sessionId]) {
res.status(400).send('Invalid or missing session ID');
res.status(404).send('Invalid or missing session ID');
return;
}

Expand Down Expand Up @@ -683,7 +683,7 @@ app.get('/mcp', authMiddleware, mcpGetHandler);
const mcpDeleteHandler = async (req: Request, res: Response) => {
const sessionId = req.headers['mcp-session-id'] as string | undefined;
if (!sessionId || !transports[sessionId]) {
res.status(400).send('Invalid or missing session ID');
res.status(404).send('Invalid or missing session ID');
return;
}

Expand Down
4 changes: 2 additions & 2 deletions examples/server/src/jsonResponseStreamableHttp.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -112,11 +112,11 @@ app.post('/mcp', async (req: Request, res: Response) => {
return; // Already handled
} else {
// Invalid request - no session ID or not initialization request
res.status(400).json({
res.status(404).json({
jsonrpc: '2.0',
error: {
code: -32_000,
message: 'Bad Request: No valid session ID provided'
message: 'Not Found: No valid session ID provided'
},
id: null
});
Expand Down
8 changes: 4 additions & 4 deletions examples/server/src/simpleStreamableHttp.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -586,11 +586,11 @@ const mcpPostHandler = async (req: Request, res: Response) => {
return; // Already handled
} else {
// Invalid request - no session ID or not initialization request
res.status(400).json({
res.status(404).json({
jsonrpc: '2.0',
error: {
code: -32_000,
message: 'Bad Request: No valid session ID provided'
message: 'Not Found: No valid session ID provided'
},
id: null
});
Expand Down Expand Up @@ -626,7 +626,7 @@ if (useOAuth && authMiddleware) {
const mcpGetHandler = async (req: Request, res: Response) => {
const sessionId = req.headers['mcp-session-id'] as string | undefined;
if (!sessionId || !transports[sessionId]) {
res.status(400).send('Invalid or missing session ID');
res.status(404).send('Invalid or missing session ID');
return;
}

Expand Down Expand Up @@ -657,7 +657,7 @@ if (useOAuth && authMiddleware) {
const mcpDeleteHandler = async (req: Request, res: Response) => {
const sessionId = req.headers['mcp-session-id'] as string | undefined;
if (!sessionId || !transports[sessionId]) {
res.status(400).send('Invalid or missing session ID');
res.status(404).send('Invalid or missing session ID');
return;
}

Expand Down
8 changes: 4 additions & 4 deletions examples/server/src/simpleTaskInteractive.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -671,9 +671,9 @@ app.post('/mcp', async (req: Request, res: Response) => {
await transport.handleRequest(req, res, req.body);
return;
} else {
res.status(400).json({
res.status(404).json({
jsonrpc: '2.0',
error: { code: -32_000, message: 'Bad Request: No valid session ID' },
error: { code: -32_000, message: 'Not Found: No valid session ID' },
id: null
});
return;
Expand All @@ -696,7 +696,7 @@ app.post('/mcp', async (req: Request, res: Response) => {
app.get('/mcp', async (req: Request, res: Response) => {
const sessionId = req.headers['mcp-session-id'] as string | undefined;
if (!sessionId || !transports[sessionId]) {
res.status(400).send('Invalid or missing session ID');
res.status(404).send('Invalid or missing session ID');
return;
}

Expand All @@ -708,7 +708,7 @@ app.get('/mcp', async (req: Request, res: Response) => {
app.delete('/mcp', async (req: Request, res: Response) => {
const sessionId = req.headers['mcp-session-id'] as string | undefined;
if (!sessionId || !transports[sessionId]) {
res.status(400).send('Invalid or missing session ID');
res.status(404).send('Invalid or missing session ID');
return;
}

Expand Down
6 changes: 3 additions & 3 deletions examples/server/src/standaloneSseWithGetStreamableHttp.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -68,11 +68,11 @@ app.post('/mcp', async (req: Request, res: Response) => {
return; // Already handled
} else {
// Invalid request - no session ID or not initialization request
res.status(400).json({
res.status(404).json({
jsonrpc: '2.0',
error: {
code: -32_000,
message: 'Bad Request: No valid session ID provided'
message: 'Not Found: No valid session ID provided'
},
id: null
});
Expand Down Expand Up @@ -100,7 +100,7 @@ app.post('/mcp', async (req: Request, res: Response) => {
app.get('/mcp', async (req: Request, res: Response) => {
const sessionId = req.headers['mcp-session-id'] as string | undefined;
if (!sessionId || !transports[sessionId]) {
res.status(400).send('Invalid or missing session ID');
res.status(404).send('Invalid or missing session ID');
return;
}

Expand Down
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