Update app.py

app.py

@@ -43,38 +43,28 @@ def create_quickchart_graph(equations: list[str]) -> str:
     if len(equations) > 2:
         return "I can only generate for two equations."
 
-    datasets = []
+    # Build the parameters for the /chart/formula endpoint
+    params = []
     colors = ["blue", "red"]
-
+    
     for idx, equation in enumerate(equations):
+        if idx >= 2:  # Limit to 2 equations
+             return "I can only generate graphs for up to two equations."
+            
+        # Extract the right side of the equation if it has an equals sign
         if '=' in equation:
             function_part = equation.split('=')[1].strip()
-            datasets.append({
-                "fn": function_part,
-                "graphType": "function",
-                "label": equation,
-                "borderColor": colors[idx],
-                "fill": False
-            })
-
-    chart_config = {
-        "type": "functionPlot",
-        "data": {"datasets": datasets},
-        "options": {
-            "title": {
-                "display": True,
-                "text": "Function Graph"
-            },
-            "scales": {
-                "xAxes": [{"type": "linear", "position": "bottom", "ticks": {"min": -10, "max": 10}}],
-                "yAxes": [{"ticks": {"min": -10, "max": 10}}]
-            }
-        }
-    }
-
-    encoded_chart = urllib.parse.quote(json.dumps(chart_config))
-    url = f"https://quickchart.io/chart?c={encoded_chart}"
-
+        else:
+            function_part = equation.strip()
+            
+        # Add this equation to the parameters
+        params.append(f"f{idx+1}={urllib.parse.quote(function_part)}")
+        params.append(f"c{idx+1}={colors[idx]}")
+        
+    # Create the formula URL with parameters
+    param_string = "&".join(params)
+    url = f"https://quickchart.io/chart/formula?{param_string}&width=500&height=300"
+    
     return f"Here is your QuickChart.io graph: {url}"