Function req

test/server/streamableHttp.test.ts:3123–3136

Shorthand to build a Web Standard Request for direct transport testing.

(method: string, opts?: { body?: unknown; headers?: Record<string, string> })

    /** Shorthand to build a Web Standard Request for direct transport testing. */
    function req(method: string, opts?: { body?: unknown; headers?: Record<string, string> }): Request {
        const headers: Record<string, string> = { ...opts?.headers };
        if (method === 'POST') {
            headers['Accept'] ??= 'application/json, text/event-stream';
            headers['Content-Type'] ??= 'application/json';
        } else if (method === 'GET') {
            headers['Accept'] ??= 'text/event-stream';
        }
        return new Request('http://localhost/mcp', {
            method,
            headers,
            body: opts?.body !== undefined ? (typeof opts.body === 'string' ? opts.body : JSON.stringify(opts.body)) : undefined
        });
    }

    function withSession(sessionId: string, extra?: Record<string, string>): Record<string, string> {
        return { 'mcp-session-id': sessionId, 'mcp-protocol-version': '2025-11-25', ...extra };