package middleware import "github.com/gin-gonic/gin" // ContextKey 定义上下文键类型 type ContextKey string const ( // ContextKeyUser 用户上下文键 ContextKeyUser ContextKey = "user" // ContextKeyApiKey API密钥上下文键 ContextKeyApiKey ContextKey = "api_key" // ContextKeySubscription 订阅上下文键 ContextKeySubscription ContextKey = "subscription" ) // ErrorResponse 标准错误响应结构 type ErrorResponse struct { Code string `json:"code"` Message string `json:"message"` } // NewErrorResponse 创建错误响应 func NewErrorResponse(code, message string) ErrorResponse { return ErrorResponse{ Code: code, Message: message, } } // AbortWithError 中断请求并返回JSON错误 func AbortWithError(c *gin.Context, statusCode int, code, message string) { c.JSON(statusCode, NewErrorResponse(code, message)) c.Abort() }