Slack 机器人无法向带有 - 或空格（例如“频道名称”）的频道发送消息

Question

我的 Slack 机器人无法向带有空格或类似“频道名称”的频道发送消息，但对于单字频道效果很好。

  $curl = curl_init();

  curl_setopt_array($curl, array(
    CURLOPT_URL => "https://slack.com/api/chat.postMessage",
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_ENCODING => "",
    CURLOPT_MAXREDIRS => 10,
    CURLOPT_TIMEOUT => 0,
    CURLOPT_FOLLOWLOCATION => true,
    CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
    CURLOPT_CUSTOMREQUEST => "POST",
    CURLOPT_POSTFIELDS =>"{ \"channel\": \"channel-withspace\",\"text\": \"hello\"}",
    CURLOPT_HTTPHEADER => array(
      "Content-Type: application/json",
      "Authorization: Bearer <here>"
    ),
  ));

  $response = curl_exec($curl);

  curl_close($curl);
  echo $response;

这是错误：

{"ok":false,"error":"not_in_channel","warning":"missing_charset","response_metadata":{"warnings":["missing_charset"]}}

Answer 1

找到了答案，事实证明我需要通过在频道中输入消息来邀请机器人：

/invite @bot-name

在这里找到答案：https ://stackoverflow.com/a/61369364/5159914