Refactor backend APIs to RESTful route patterns.

Align group and conversation handlers/services with path-based endpoints, and unify response/service error handling for related modules.

Made-with: Cursor

internal/service/group_service.go

@@ -25,23 +25,23 @@ const (
 
 // 群组服务错误定义
 var (
-	ErrGroupNotFound        = errors.New("群组不存在")
-	ErrNotGroupMember       = errors.New("不是群成员")
-	ErrNotGroupAdmin        = errors.New("不是群管理员")
-	ErrNotGroupOwner        = errors.New("不是群主")
-	ErrGroupFull            = errors.New("群已满")
-	ErrAlreadyMember        = errors.New("已经是群成员")
-	ErrCannotRemoveOwner    = errors.New("不能移除群主")
-	ErrCannotMuteOwner      = errors.New("不能禁言群主")
-	ErrMuted                = errors.New("你已被禁言")
-	ErrMuteAllEnabled       = errors.New("全员禁言中")
-	ErrCannotJoin           = errors.New("该群不允许加入")
-	ErrJoinRequestPending   = errors.New("加群申请已提交")
-	ErrGroupRequestNotFound = errors.New("加群请求不存在")
-	ErrGroupRequestHandled  = errors.New("该加群请求已处理")
-	ErrNotRequestTarget     = errors.New("不是邀请目标用户")
-	ErrNoEligibleInvitee    = errors.New("没有可邀请的用户")
-	ErrNotMutualFollow      = errors.New("仅支持邀请互相关注用户")
+	ErrGroupNotFound        = &ServiceError{Code: 404, Message: "群组不存在"}
+	ErrNotGroupMember       = &ServiceError{Code: 403, Message: "不是群成员"}
+	ErrNotGroupAdmin        = &ServiceError{Code: 403, Message: "不是群管理员"}
+	ErrNotGroupOwner        = &ServiceError{Code: 403, Message: "不是群主"}
+	ErrGroupFull            = &ServiceError{Code: 400, Message: "群已满"}
+	ErrAlreadyMember        = &ServiceError{Code: 400, Message: "已经是群成员"}
+	ErrCannotRemoveOwner    = &ServiceError{Code: 400, Message: "不能移除群主"}
+	ErrCannotMuteOwner      = &ServiceError{Code: 400, Message: "不能禁言群主"}
+	ErrMuted                = &ServiceError{Code: 403, Message: "你已被禁言"}
+	ErrMuteAllEnabled       = &ServiceError{Code: 403, Message: "全员禁言中"}
+	ErrCannotJoin           = &ServiceError{Code: 400, Message: "该群不允许加入"}
+	ErrJoinRequestPending   = &ServiceError{Code: 400, Message: "加群申请已提交"}
+	ErrGroupRequestNotFound = &ServiceError{Code: 404, Message: "加群请求不存在"}
+	ErrGroupRequestHandled  = &ServiceError{Code: 400, Message: "该加群请求已处理"}
+	ErrNotRequestTarget     = &ServiceError{Code: 400, Message: "不是邀请目标用户"}
+	ErrNoEligibleInvitee    = &ServiceError{Code: 400, Message: "没有可邀请的用户"}
+	ErrNotMutualFollow      = &ServiceError{Code: 400, Message: "仅支持邀请互相关注用户"}
 )
 
 // GroupService 群组服务接口