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* 字段短编码映射
*
* 将常用字段名编码为 2-3 个字符的短码，减少上报体积
*
* 编码前：{ "type": "error", "level": "error", "message": "..." }
* 编码后：{ "t": "e", "l": "e", "m": "..." }
*
* 注意：只对最外层高频字段编码，不对嵌套对象深度编码
* 避免复杂嵌套带来的解析问题和兼容性风险
*/
// SDK 端：字段名编码映射（只包含最外层高频字段）
export const FIELD_ENCODE_MAP: Record<string, string> = {
// 基础字段
event_id: 'eid',
timestamp: 'ts',
start_timestamp: 'sts',
type: 't',
level: 'l',
message: 'm',
platform: 'p',
release: 'r',
environment: 'e',
fingerprint: 'fp',
context_id: 'cid',
// 用户
user: 'u',
// 标签
tags: 'tg',
// 异常
exception: 'ex',
// 请求
request: 'req',
// 上下文
contexts: 'ctx',
// 面包屑
breadcrumbs: 'bc',
// Transaction
transaction: 'tx',
duration: 'd',
spans: 'sp',
// 额外信息
extra: 'xt',
};
// 服务端：字段名解码映射（反向）
export const FIELD_DECODE_MAP: Record<string, string> = Object.fromEntries(
Object.entries(FIELD_ENCODE_MAP).map(([k, v]) => [v, k])
);
/**
* 编码事件字段名（SDK 端使用）
* 只对最外层字段编码，避免深度编码的复杂性
*/
export function encodeFields(obj: Record<string, unknown>): Record<string, unknown> {
if (!obj || typeof obj !== 'object') return obj;
const result: Record<string, unknown> = {};
for (const [key, value] of Object.entries(obj)) {
const shortKey = FIELD_ENCODE_MAP[key] || key;
result[shortKey] = value;
}
return result;
}
/**
* 解码事件字段名（服务端使用）
* 只对最外层字段解码
*/
export function decodeFields(obj: Record<string, unknown>): Record<string, unknown> {
if (!obj || typeof obj !== 'object') return obj;
const result: Record<string, unknown> = {};
for (const [key, value] of Object.entries(obj)) {
const fullKey = FIELD_DECODE_MAP[key] || key;
result[fullKey] = value;
}
return result;
}
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