2 files changed, 18 insertions, 0 deletions
diff --git a/lib/utils/geometry.py b/lib/utils/geometry.py
index 647636c8..bae32c32 100644
--- a/lib/utils/geometry.py
+++ b/lib/utils/geometry.py
@@ -63,6 +63,9 @@ class Point:
         self.x = x
         self.y = y
 
+    def __json__(self):
+        return vars(self)
+
     def __add__(self, other):
         return Point(self.x + other.x, self.y + other.y)
 
diff --git a/lib/utils/json.py b/lib/utils/json.py
new file mode 100644
index 00000000..c670a46b
--- /dev/null
+++ b/lib/utils/json.py
@@ -0,0 +1,15 @@
+from flask.json import JSONEncoder
+
+
+class InkStitchJSONEncoder(JSONEncoder):
+    """JSON encoder class that runs __json__ on an object if available.
+
+    The __json__ method should return a JSON-compatible representation of the
+    object.
+    """
+
+    def default(self, obj):
+        try:
+            return obj.__json__()
+        except AttributeError:
+            return JSONEncoder.default(self, obj)