Revision history: change sets + revisions + revert — the undo substrate (#48) (#61)

Co-authored-by: Steve Dudenhoeffer <[email protected]>

internal/api/errors.go

@@ -69,6 +69,20 @@ func writeVersionConflict(c *gin.Context, current any) {
 	})
 }
 
+// intQuery reads a non-negative integer query parameter, falling back to def on
+// an absent or malformed value.
+func intQuery(c *gin.Context, name string, def int) int {
+	raw := c.Query(name)
+	if raw == "" {
+		return def
+	}
+	v, err := strconv.Atoi(raw)
+	if err != nil || v < 0 {
+		return def
+	}
+	return v
+}
+
 // parseIDParam reads a positive int64 path parameter, writing a 400 and
 // returning ok=false on a malformed value.
 func parseIDParam(c *gin.Context, name string) (int64, bool) {