{"ok":true,"service":"tim-im-demo-backend","try":["GET \/api\/health","POST \/api\/message_revoke (管理员级撤回，需 X-Api-Key)","POST \/api\/im_send (单聊\/群聊发文本，需 X-Api-Key)","POST \/api\/group_members (拉取群成员 ID，需 X-Api-Key)","POST \/api\/joined_groups (拉取用户已加入的群，需 X-Api-Key)","POST \/api\/group_messages (拉取群聊天记录，需 X-Api-Key)","GET \/api\/security_questions","GET \/admin\/login","GET \/admin\/index","GET \/admin\/account_password","POST \/im\/callback (IM 第三方回调)","GET \/im\/callback\/ping (回调配置自检)"]}