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AppError

Enum AppError 

Source
pub enum AppError {
    Unauthorized(&'static str),
    Forbidden(&'static str),
    NotFound(&'static str),
    BadRequest(String),
    DbConn(String),
    Query(String),
    Transaction(String),
    Internal(&'static str),
}
Expand description

应用层统一错误类型。

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Unauthorized(&'static str)

未认证(401)。

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Forbidden(&'static str)

无权限(403)。

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NotFound(&'static str)

资源不存在(404)。

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BadRequest(String)

客户端请求错误(400)——业务规则拒绝,消息原样透传给用户。

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DbConn(String)

数据库连接失败。

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Query(String)

SQL 查询执行失败。

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Transaction(String)

数据库事务失败。

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Internal(&'static str)

内部通用错误。

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impl AppError

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pub fn db_conn(e: impl Error) -> Self

记录并包装数据库连接错误。

对外只暴露通用提示(脱敏),但服务端日志会展开 source 链,记录完整的 失败原因(如 db error: connection refused、IO 错误等)。传入的错误类型 必须实现 std::error::Error —— DB 相关错误(tokio_postgres::Errordeadpool_postgres::PoolError)均满足,这一点是上次“日志只显示 db error“ 问题的根治前提。

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pub fn query(e: impl Error) -> Self

记录并包装 SQL 查询错误。

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pub fn tx(e: impl Error) -> Self

记录并包装数据库事务错误。

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impl Debug for AppError

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl From<AppError> for ServerFnError

转换为 ServerFnError,对数据库类错误返回通用中文提示。

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fn from(err: AppError) -> ServerFnError

Converts to this type from the input type.

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impl<T> Any for T
where T: 'static + ?Sized,

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Mutably borrows from an owned value. Read more
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> InitializeFromFunction<T> for T

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fn initialize_from_function(f: fn() -> T) -> T

Create an instance of this type from an initialization function
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Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more
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const ALIGN: usize

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Dereferences the given pointer. Read more
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type Error = <U as TryFrom<T>>::Error

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