无法从第二代AppEngine的req头文件中获取X-AppEngine信息

Question

我今天在GoogleCloudFunctions中构建了2个函数，使用相同的代码和不同的环境(第一代和第二代)。

res.json(req.headers)

第一代标题中有X-Appengine-*，但第二代没有。第一代res:

{
"host": "xxxxx",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:106.0) Gecko/20100101 Firefox/106.0",
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
"accept-encoding": "gzip, deflate, br",
"accept-language": "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2",
"forwarded": "for="xx.xx.xx.xx";proto=https",
"function-execution-id": "z93h1p8dezsd",
"sec-fetch-dest": "document",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "none",
"sec-fetch-user": "?1",
"traceparent": "00-c6fbb14b26a1999f7203caa810bd82bd-f4e8995eb815facc-01",
"upgrade-insecure-requests": "1",
"x-appengine-appversionid": "h~j3d1cb91ff7bbe64cp-tp/a8aa78b2557e1c923250159d17af9995:2.447902922919183830",
"x-appengine-city": "?",
"x-appengine-citylatlong": "0.000000,0.000000",
"x-appengine-country": "HK",
"x-appengine-default-version-hostname": "j3d1cb91ff7bbe64cp-tp.appspot.com",
"x-appengine-https": "on",
"x-appengine-region": "?",
"x-appengine-request-log-id": "63745ec000ff00ff035e0349af4c0001687e6a33643163623931666637626265363463702d7470000161386161373862323535376531633932333235303135396431376166393939353a32000100",
"x-appengine-timeout-ms": "599999",
"x-appengine-user-ip": "xx.xx.xx.xx",
"x-cloud-trace-context": "c6fbb14b26a1999f7203caa810bd82bd/17647523771945712332;o=1",
"x-forwarded-for": "xx.xx.xx.xx",
"x-forwarded-proto": "https",
"connection": "close"
}

第二代res:

{
"host": "xxxxx.run.app",
"user-agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:106.0) Gecko/20100101 Firefox/106.0",
"accept": "text/html,application/xhtml+xml,application/xml;q=0.9,image/avif,image/webp,*/*;q=0.8",
"accept-language": "zh-CN,zh;q=0.8,zh-TW;q=0.7,zh-HK;q=0.5,en-US;q=0.3,en;q=0.2",
"upgrade-insecure-requests": "1",
"sec-fetch-dest": "document",
"sec-fetch-mode": "navigate",
"sec-fetch-site": "none",
"sec-fetch-user": "?1",
"x-cloud-trace-context": "7adcb5fe556c66fc94f83b6dfe62dfe6/5799981330522755859;o=1",
"traceparent": "00-7adcb5fe556c66fc94f83b6dfe62dfe6-507dac4a5db4d313-01",
"x-forwarded-for": "xxx.xxx.xxx.xxx",
"x-forwarded-proto": "https",
"forwarded": "for="xxx.xxx.xxx.xxx";proto=https",
"accept-encoding": "gzip, deflate, br"
}

我可以从第二代函数获得X-Appengine-*吗?

谢谢

Answer 1

第二代环境不支持特定于应用引擎的标头。由于Cloud Functions(第二代)是基于Cloud Run构建的，因此您可以参考此文档

正如john hanley在上面的评论中提到的，如果你想要那些头，部署在gen1上。

如果你认为这是一个有效的功能请求，你可以在这里提出一个清晰的描述。好的特性请求将解决常见问题或启用新的用例。