Function next

packages/core/src/server/middleware.ts:281–289

()

      let nextCalled = false;

      const next = (): Promise<unknown> => {
        if (nextCalled) {
          throw new Error(
            `next() called multiple times in middleware for "${method}"`,
          );
        }
        nextCalled = true;
        return executeLayer();
      };

      return Promise.resolve(entry.handler(mcpRequest, extra, next));
    };