feat: 实现分层架构,包含 domain、service、repository 和 pkg 层
- 新增 domain 层:model、provider、route、stats 实体 - 新增 service 层:models、providers、routing、stats 业务逻辑 - 新增 repository 层:models、providers、stats 数据访问 - 新增 pkg 工具包:errors、logger、validator - 新增中间件:CORS、logging、recovery、request ID - 新增数据库迁移:初始 schema 和索引 - 新增单元测试和集成测试 - 新增规范文档:config-management、database-migration、error-handling、layered-architecture、middleware-system、request-validation、structured-logging、test-coverage - 移除 config 子包和 model_router(已迁移至分层架构)
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21
backend/internal/handler/middleware/request_id.go
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21
backend/internal/handler/middleware/request_id.go
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package middleware
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import (
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"github.com/gin-gonic/gin"
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"github.com/google/uuid"
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)
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const RequestIDKey = "request_id"
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// RequestID 请求 ID 中间件
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func RequestID() gin.HandlerFunc {
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return func(c *gin.Context) {
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requestID := c.GetHeader("X-Request-ID")
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if requestID == "" {
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requestID = uuid.New().String()
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}
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c.Set(RequestIDKey, requestID)
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c.Header("X-Request-ID", requestID)
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c.Next()
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}
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}
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