Add example

docs/examples/playground/app2.py

@@ -0,0 +1,20 @@
+from pandas import DataFrame
+from shiny.express import ui
+from shinyecharts.express import Chart, InitOptions, SeriesType
+from shinyecharts.renderer import ChartRenderer
+
+init_options = InitOptions(width=600, height=400, renderer="canvas")
+
+data = DataFrame(dict(a=[1, 2, 3, 4], b=[2, 4, 8, 4], c=[3, -2, 3, 1]))
+
+pie_data = DataFrame(dict(name=["A", "B", "C"], value=[10, 70, 40]))
+
+
+@ChartRenderer
+def render_line_chart():
+    return Chart().data(data).encode("a", "b").encode("a", "c", color="pink")
+
+
+@ChartRenderer
+def render_pie_chart():
+    return Chart().data(pie_data).series("pie")

shinyecharts/express.py

@@ -15,6 +15,7 @@ def __init__(self, options: InitOptions = InitOptions()):
         self._option = dict(xAxis=dict(), yAxis=dict())
         self.legend()
 
+    # TODO: Use 'attr' from base Chart
     def _update_option(self, **kwargs) -> None:
         self._option.update(**kwargs)
 
@@ -24,6 +25,10 @@ def _add_series(self, series: dict) -> None:
         else:
             self._update_option(series=[series])
 
+    # Pass InitOptions
+    def configure(self) -> Chart:
+        return self
+
     def dark(self) -> Chart:
         self._theme = "dark"
         return self