1823aae891Co-authored-by: Matt <77928207+mattzcarey@users.noreply.github.com> Co-authored-by: Konstantin Konstantinov <KKonstantinov@users.noreply.github.com> Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
25 lines
1.3 KiB
TypeScript
25 lines
1.3 KiB
TypeScript
/**
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* Connects to the minimal `createMcpHandler` deployment as both a plain 2025
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* client (`versionNegotiation: { mode: 'legacy' }` — the `initialize`
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* handshake, served stateless from the factory) and a 2026-capable client
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* (`versionNegotiation: { mode: 'auto' }`, served per request). Asserts the
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* same `greet` tool answers identically either way.
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*
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* HTTP-only — `createMcpHandler`'s `legacy: 'stateless'` posture is an HTTP
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* hosting concern; a stdio leg would bypass it. The story body drives BOTH
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* eras itself, so only `url` is read from argv.
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*/
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import { check, parseExampleArgs } from '@mcp-examples/shared';
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import { Client, StreamableHTTPClientTransport } from '@modelcontextprotocol/client';
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const { url } = parseExampleArgs();
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for (const mode of ['legacy', 'auto'] as const) {
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const client = new Client({ name: 'stateless-legacy-client', version: '1.0.0' }, { versionNegotiation: { mode } });
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await client.connect(new StreamableHTTPClientTransport(new URL(url)));
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const tools = await client.listTools();
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check.ok(tools.tools.some(t => t.name === 'greet'));
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const result = await client.callTool({ name: 'greet', arguments: { name: 'world' } });
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check.equal(result.content?.[0]?.type === 'text' ? result.content[0].text : '', 'Hello, world!');
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await client.close();
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}
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