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---
paths:
- "**/*.cs"
- "**/*.csx"
---
# C# 模式
> 本文档在 [common/patterns.md](../common/patterns.md) 的基础上扩展了 C# 相关内容。
## API 响应模式
```csharp
public sealed record ApiResponse<T>(
bool Success,
T? Data = default,
string? Error = null,
object? Meta = null);
```
## 仓储模式
```csharp
public interface IRepository<T>
{
Task<IReadOnlyList<T>> FindAllAsync(CancellationToken cancellationToken);
Task<T?> FindByIdAsync(Guid id, CancellationToken cancellationToken);
Task<T> CreateAsync(T entity, CancellationToken cancellationToken);
Task<T> UpdateAsync(T entity, CancellationToken cancellationToken);
Task DeleteAsync(Guid id, CancellationToken cancellationToken);
}
```
## 选项模式
使用强类型选项进行配置,而不是在整个代码库中读取原始字符串。
```csharp
public sealed class PaymentsOptions
{
public const string SectionName = "Payments";
public required string BaseUrl { get; init; }
public required string ApiKeySecretName { get; init; }
}
```
## 依赖注入
* 在服务边界上依赖于接口
* 保持构造函数专注;如果某个服务需要太多依赖项,请拆分其职责
* 有意识地注册生命周期:无状态/共享服务使用单例,请求数据使用作用域,轻量级纯工作者使用瞬时