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30 lines
692 B
30 lines
692 B
export type GatewayResult<T> = {
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status: number;
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body: T;
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};
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const INTERNAL_ERROR_BODY = {
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code: "INTERNAL_ERROR",
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message: "服务暂时不可用，请稍后重试",
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data: null,
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} as const;
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/**
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* 网关层 5xx 单次重试：首次 5xx 再执行一次，仍 5xx 则返回 503 INTERNAL_ERROR。
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*/
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export async function executeWithGatewayRetry<T>(
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handler: () => Promise<GatewayResult<T>>,
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): Promise<GatewayResult<T | typeof INTERNAL_ERROR_BODY>> {
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const first = await handler();
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if (first.status < 500) {
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return first;
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}
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const second = await handler();
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if (second.status < 500) {
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return second;
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}
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return { status: 503, body: INTERNAL_ERROR_BODY };
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}
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