Saving drawings

[aliveoceans]

Is there a way to save drawings so that they can be retrieved after revisiting the chart?

[kwanso-saif]

So in registerOverlay store the overlay that you just created:

  onDrawEnd: function (event) {
    localStorage.setItem("MYEVENT", JSON.stringify(event.overlay))
    return true;
  },

And in UseLayoutEffect one can retireve the already made overlays:

    if (localStorage.getItem("MYEVENT")) {
    console.log(JSON.parse(localStorage.getItem("MYEVENT") || ""))
    chart.createOverlay(JSON.parse(localStorage.getItem("MYEVENT") || ""))
  }