データ変換ツール
https://hogehoge.tk/tool/

リクエスト

{"image": "data:image/jpeg;base64,{Base64データ}"}

{"movie": "data:video/mp4;base64,{Base64データ}"}

    public function imageFileTempUpload(Request $request)
    {
        // 画像保存
        \Log::debug($request->image);
        $image = $request->input("movie");  // your base64 encoded
        $image = str_replace('data:image/jpeg;base64,', '', $image);
        $image = str_replace(' ', '+', $image);
        $imageName = str_random(10).'.'.'jpeg';
        \File::put(storage_path(). '/' . $imageName, base64_decode($image));

    }

    public function movieFileTempUpload(Request $request)
    {
        // 動画保存
        \Log::debug($request->movie);
        $movie = $request->input("movie");  // your base64 encoded
        $movie = str_replace('data:video/mp4;base64,', '', $movie);
        $movie = str_replace(' ', '+', $movie);
        $movieName = str_random(10).'.'.'mp4';
        \File::put(storage_path(). '/' . $movieName, base64_decode($movie));
    }