Function run

nodejs/src/copilotRequestHandler.ts:355–377

(exchange: CopilotRequestExchange)

    }

    async function run(exchange: CopilotRequestExchange): Promise<void> {
        try {
            await handler[kHandle](exchange);
            if (!exchange.finished) {
                await finalize(
                    exchange,
                    502,
                    "Copilot request handler returned without finalising the response (call responseBody.end() or .error())."
                );
            }
        } catch (err) {
            if (exchange.cancelled || exchange.signal.aborted) {
                // The runtime already cancelled this request; the handler's
                // throw is just the abort propagating out of its upstream call.
                await finalize(exchange, 499, "Request cancelled by runtime", "cancelled");
                return;
            }
            const message = err instanceof Error ? err.message : String(err);
            await finalize(exchange, 502, message);
        } finally {
            pending.delete(exchange.requestId);
        }
    }

    return {
        async httpRequestStart(