Don't bother serializing pandas index

Dropping the index saves bandwidth and prevents an
error if the index has non-serializable values in it.

Author: jcheng5

js/dataframe/index.tsx

@@ -58,7 +58,7 @@ interface ShinyDataGridProps<TIndex> {
 
 const ShinyDataGrid: FC<ShinyDataGridProps<unknown>> = (props) => {
   const { id, data, bgcolor } = props;
-  const { columns, index, type_hints, data: rowData } = data;
+  const { columns, type_hints, data: rowData } = data;
   const { width, height, filters: withFilters } = data.options;
 
   const containerRef = useRef<HTMLDivElement>(null);

js/dataframe/types.ts

@@ -20,7 +20,7 @@ export interface DataGridOptions {
 
 export interface PandasData<TIndex> {
   columns: ReadonlyArray<string>;
-  index: ReadonlyArray<TIndex>;
+  // index: ReadonlyArray<TIndex>;
   data: unknown[][];
   type_hints?: ReadonlyArray<TypeHint>;
   options: DataGridOptions;

shiny/render/_dataframe.py

@@ -207,6 +207,10 @@ def to_payload(self) -> object:
 
 
 def serialize_pandas_df(df: "pd.DataFrame") -> dict[str, Any]:
+    # Currently, we don't make use of the index; drop it so we don't error trying to
+    # serialize it or something
+    df = df.reset_index(drop=True)
+
     res = json.loads(
         # {index: [index], columns: [columns], data: [values]}
         df.to_json(None, orient="split")  # pyright: ignore[reportUnknownMemberType]