gistfile1.txt

{
   "response_type":"ephemeral",
   "replace_original":true,
   "attachments":[
      {
         "pretext":"\n*Open tasks:*\n",
         "text":"✅ *<http://sinople.dev.com:9000/task/5df2fb4a528464beb09585fc67f5a272?ref=task_id|TL1Z>:* Task 5",
         "attachment_type":"default",
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      },
      {
         "pretext":"_Select a task to mark as completed:_",
         "callback_id":"todo_list",
         "actions":[
            {
               "name":"done_from_list",
               "text":"Select a task...",
               "type":"select",
               "option_groups":[
                  {
                     "text":"Open tasks",
                     "options":[

                     ]
                  }
               ]
            }
         ],
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         "callback_id":"todo_list",
         "actions":[
            {
               "name":"dismiss",
               "text":"Dismiss",
               "type":"button",
               "value":""
            },
            {
               "url":"http://sinople.dev.com:9000/list/5a4c08237d2c79448a96a195?ref=todo_list",
               "name":"view_in_workast",
               "text":"⎋ Open in Workast",
               "value":"",
               "style":"default",
               "type":"button"
            },
            {
               "name":"list_todo_done",
               "text":"Show completed",
               "value":"",
               "style":"default",
               "type":"button"
            },
            {
               "name":"share_list",
               "text":"⎋ Share",
               "value":"",
               "style":"primary",
               "type":"button"
            }
         ],
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