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v2: Web standards Request object in ctx (#1822)

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Co-authored-by: Felix Weinberger <3823880+felixweinberger@users.noreply.github.com>
This commit is contained in:
Konstantin Konstantinov 2026-03-31 14:02:37 +03:00 • committed by GitHub
commit 2fd7f5ff26
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1 changed files with 81 additions and 42 deletions
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59
packages/middleware/node/test/streamableHttp.test.ts
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@ -396,7 +396,7 @@ describe('Zod v4', () => {
/***
* Test: Tool With Request Info
*/
it('should pass request info to tool callback', async () => {
it('should expose the full Request object to tool handlers', async () => {
sessionId = await initializeServer();
mcpServer.registerTool(
@ -406,10 +406,11 @@ describe('Zod v4', () => {
inputSchema: z.object({ name: z.string().describe('Name to greet') })
},
async ({ name }, ctx): Promise<CallToolResult> => {
// Convert Headers object to plain object for JSON serialization
// Headers is a Web API class that doesn't serialize with JSON.stringify
const req = ctx.http?.req;
const serializedRequestInfo = {
headers: Object.fromEntries(ctx.http?.req?.headers ?? new Headers())
headers: Object.fromEntries(req?.headers ?? new Headers()),
url: req?.url,
method: req?.method
};
return {
content: [
@ -464,10 +465,58 @@ describe('Zod v4', () => {
'user-agent': expect.any(String),
'accept-encoding': expect.any(String),
'content-length': expect.any(String)
}
},
url: expect.stringContaining(baseUrl.pathname),
method: 'POST'
});
});
it('should expose query parameters via the Request object', async () => {
sessionId = await initializeServer();
mcpServer.registerTool(
'test-query-params',
{
description: 'A tool that reads query params',
inputSchema: z.object({})
},
async (_args, ctx): Promise<CallToolResult> => {
const req = ctx.http?.req;
const url = new URL(req!.url);
const params = Object.fromEntries(url.searchParams);
return {
content: [{ type: 'text', text: JSON.stringify(params) }]
};
}
);
const toolCallMessage: JSONRPCMessage = {
jsonrpc: '2.0',
method: 'tools/call',
params: {
name: 'test-query-params',
arguments: {}
},
id: 'call-2'
};
// Send to a URL with query parameters
const urlWithParams = new URL(baseUrl.toString());
urlWithParams.searchParams.set('foo', 'bar');
urlWithParams.searchParams.set('debug', 'true');
const response = await sendPostRequest(urlWithParams, toolCallMessage, sessionId);
expect(response.status).toBe(200);
const text = await readSSEEvent(response);
const dataLine = text.split('\n').find(line => line.startsWith('data:'));
expect(dataLine).toBeDefined();
const eventData = JSON.parse(dataLine!.slice(5));
const queryParams = JSON.parse(eventData.result.content[0].text);
expect(queryParams).toEqual({ foo: 'bar', debug: 'true' });
});
it('should reject requests without a valid session ID', async () => {
const response = await sendPostRequest(baseUrl, TEST_MESSAGES.toolsList);