@ (#111)
docs/api目录文档分类和补全 --------- Co-authored-by: guke <guke@autohome.com.cn> Reviewed-on: #111
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# POST /api/v1/wallet/exchange — 金币兑现金
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> 所属:Wallet 组(前缀 `/api/v1/wallet`) | 鉴权:Bearer | [← 返回 API 索引](../README.md)
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## 入参
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| 字段 | 类型 | 必填 | 说明 |
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|---|---|---|---|
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| `coin_amount` | int | ✅(>0) | 要兑换的金币数,须 ≥ `min_coin` 且为 `step_coin` 整数倍 |
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## 出参
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响应 `200`:`ExchangeResultOut`
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| 字段 | 类型 | 说明 |
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|---|---|---|
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| `coin_amount` | int | 本次扣除的金币 |
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| `cash_added_cents` | int | 本次兑入的现金(分) |
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| `coin_balance` | int | 兑换后金币余额 |
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| `cash_balance_cents` | int | 兑换后现金余额(分) |
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## 错误码
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- `400` `coin_amount` 不满足 ≥ `min_coin` 且为 `step_coin` 整数倍
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- `409` 金币余额不足
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## 说明
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兑换规则见 [wallet-exchange-info](./wallet-exchange-info.md)。金币与现金的扣加在同一事务内完成。
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