19 lines
876 B
TypeScript
19 lines
876 B
TypeScript
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/** 应用层错误：入口层据此转成协议里的 ErrorEnvelope（见 docs/spec/protocol.md 第 8 节） */
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export class AppError extends Error {
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readonly code: string;
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readonly status: number;
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readonly retryable: boolean;
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constructor(code: string, message: string, options: { status?: number; retryable?: boolean } = {}) {
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super(message);
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this.name = 'AppError';
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this.code = code;
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this.status = options.status ?? 400;
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this.retryable = options.retryable ?? false;
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}
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}
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export const badRequest = (message: string): AppError => new AppError('invalid_request', message, { status: 400 });
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export const notFound = (what: string): AppError => new AppError('not_found', `${what} 不存在`, { status: 404 });
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export const conflict = (message: string, retryable = true): AppError =>
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new AppError('conflict', message, { status: 409, retryable });
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