activity: route to show activity activity log

filterable by type, sortable by time, and paginated.

models.go

@@ -430,3 +430,25 @@ type GetMyReferralRespDTO struct {
 type EnableDisableReferralDTO struct {
 	Users []string `json:"users"`
 }
+
+type ActivityDTO struct {
+	ID         string `json:"id"`
+	Type       string `json:"type"`
+	UserID     string `json:"user_id"`
+	SourceType string `json:"source_type"`
+	Source     string `json:"source"`
+	InviteCode string `json:"invite_code"`
+	Value      string `json:"value"`
+	Time       int64  `json:"time"`
+}
+
+type GetActivitiesDTO struct {
+	Type      string `json:"type"` // Type of activity to get. Leave blank for all.
+	Limit     int    `json:"limit"`
+	Page      int    `json:"page"` // zero-indexed
+	Ascending bool   `json:"ascending"`
+}
+
+type GetActivitiesRespDTO struct {
+	Activities []ActivityDTO `json:"activities"`
+}