SAE新近开放的实时日志API允许开发者通过HTTP GET方式从SAE服务器获取应用日志，从而实现在线的应用调试与分析。
SAE日志API的URL请求格式为：GET /log/(string: service)/(string: date)/(string: ident).log?(string: fop)
参数列表中：
date表示日志的日期，格式为yyyy-MM-dd
service为SAE提供的各项服务，包括http，taskqueue（任务队列），cron（定时任务），mail（邮件），rdc（关系型数据库集群），storage（存储），push（推送）以及fetchurl（URL抓取），相信熟悉SAE的开发者不会对此感到陌生。
ident表示相应服务下的日志类型 ...
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