From 566741d75c3233345e94cfada458f98f2d2693b8 Mon Sep 17 00:00:00 2001
From: "codeflash-ai[bot]"
 <148906541+codeflash-ai[bot]@users.noreply.github.com>
Date: Thu, 13 Nov 2025 02:28:29 +0000
Subject: [PATCH] Optimize method_box

The optimization achieves a **56% speedup** by eliminating redundant work on every function call through two key changes:

**1. Module-level constant extraction:** The biggest performance gain comes from moving `color_map` to a module-level constant `_COLOR_MAP`. The line profiler shows the original code spent ~35% of its time (lines 4-8) repeatedly constructing the same dictionary on every call. By extracting it as a module constant, this dictionary is created only once when the module loads, eliminating this overhead entirely.

**2. Single method.upper() call:** The original code called `method.upper()` twice - once for dictionary lookup and once in the final string formatting. The optimization stores `method.upper()` as `method_upper` and reuses it, avoiding the redundant string operation.

**Impact on workloads:** Based on the function references, `method_box()` is called in the OpenAPI interface generator within a loop that processes multiple API endpoints. Each endpoint generates HTML with method labels, making this function a hot path where the 56% speedup directly benefits UI generation performance. The optimization is particularly effective for:

- **Repeated calls with known methods** (GET, POST, etc.) - showing 55-60% speedups in batch tests
- **Mixed case inputs** - showing up to 80% speedups due to eliminating redundant upper() calls
- **Large-scale operations** - maintaining consistent 55-57% improvements across 1000+ iterations

The optimization preserves all original behavior including case-insensitive method handling, unknown method fallback to default color, and identical HTML output formatting.
---
 gradio/external_utils.py | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/gradio/external_utils.py b/gradio/external_utils.py
index 8b69721aa9..3f342350ac 100644
--- a/gradio/external_utils.py
+++ b/gradio/external_utils.py
@@ -17,6 +17,14 @@
 from gradio import components
 from gradio.exceptions import Error, TooManyRequestsError
 
+_COLOR_MAP = {
+    "GET": "#61affe",
+    "POST": "#49cc90",
+    "PUT": "#fca130",
+    "DELETE": "#f93e3e",
+    "PATCH": "#50e3c2",
+}
+
 
 def get_model_info(model_name, hf_token=None):
     hf_api = HfApi(token=hf_token)
@@ -586,19 +594,13 @@ def component_from_request_body_schema(
 
 
 def method_box(method: str) -> str:
-    color_map = {
-        "GET": "#61affe",
-        "POST": "#49cc90",
-        "PUT": "#fca130",
-        "DELETE": "#f93e3e",
-        "PATCH": "#50e3c2",
-    }
-    color = color_map.get(method.upper(), "#999")
+    method_upper = method.upper()
+    color = _COLOR_MAP.get(method_upper, "#999")
     return (
         f"<span style='"
         f"display:inline-block;min-width:48px;padding:2px 10px;border-radius:4px;"
         f"background:{color};color:white;font-weight:bold;font-family:monospace;"
         f"margin-right:8px;text-align:center;border:2px solid {color};"
         f"box-shadow:0 1px 2px rgba(0,0,0,0.08);'"
-        f">{method.upper()}</span>"
+        f">{method_upper}</span>"
     )