我正在使用 Microsoft Flow 向我的服务器发送 HTTP POST 请求。请求正文包含一个名为“Email-To”的自定义标头,其值是一个字符串。这是正文:
{
"$content-type": "multipart/form-data",
"$multipart": [
{
"headers": {
"Email-To": "[email protected]",
"Content-Disposition": "form-data; name=\"file\"; filename=901210.xlsx"
},
"body": {
"$content-type": "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
"$content": "content"
}
}
]
}
当请求到达我的 NodeJS 服务器时,我想从标头中检索值。
app.post('/upload', function(req, res) {
console.log(req.headers("Email-To"))
console.log(req.get("Email-To"))
});
两个日志都将始终打印“未定义”。我尝试通过查看标题下的请求对象本身来进一步调试它。好像没有标题。
0|server | headers:
0|server | { host: 'my_ip',
0|server | 'accept-language': 'en-US',
0|server | 'user-agent':
0|server | 'azure-logic-apps/1.0 (workflow aa9d5e05e9b54c478ccebf2412633add; version 08586366094673048593) microsoft-flow/1.0',
0|server | 'x-ms-execution-location': 'westeurope',
0|server | 'x-ms-workflow-id': 'aa9d5e05e9b54c478ccebf2412633add',
0|server | 'x-ms-workflow-version': '08586366094673048593',
0|server | 'x-ms-workflow-name': '010bf24d-5a56-4053-8a39-e088e727cbf5',
0|server | 'x-ms-workflow-system-id':
0|server | '/locations/westeurope/scaleunits/prod-48/workflows/aa9d5e05e9b54c478ccebf2412633add',
0|server | 'x-ms-workflow-run-id': '08586365350241297663352938044CU52',
0|server | 'x-ms-workflow-run-tracking-id': '2eec16eb-2f3f-4a87-a26d-683750ca20f5',
0|server | 'x-ms-workflow-operation-name': 'HTTP',
0|server | 'x-ms-workflow-subscription-id': 'b745f25e-91b5-4140-9d73-93b10b1dfb1d',
0|server | 'x-ms-workflow-resourcegroup-name':
0|server | 'B5EBEC49F06342E5B0E1F4E04C03D0B7-D8266BA594DC4A5DB55D7F31650FCD73',
0|server | 'x-ms-tracking-id': 'aa92c109-151a-418c-8d01-754da7bc2c43',
0|server | 'x-ms-correlation-id': 'aa92c109-151a-418c-8d01-754da7bc2c43',
0|server | 'x-ms-client-request-id': 'aa92c109-151a-418c-8d01-754da7bc2c43',
0|server | 'x-ms-client-tracking-id': '08586365350241297663352938044CU52',
0|server | 'x-ms-action-tracking-id': 'f3a02477-227d-46cf-9105-228fe5c41f8d',
0|server | 'x-ms-activity-vector': 'IN.0E',
0|server | 'content-type':
0|server | 'multipart/form-data; boundary="c859bba4-c9e1-4426-86ce-b3daf6ab74d9"',
0|server | 'accept-encoding': 'gzip, deflate',
0|server | via: '1.1 my_ip (Apache/2.4.18)',
0|server | 'x-forwarded-for': 'someones_ip',
0|server | 'x-forwarded-host': 'my_ip',
0|server | 'x-forwarded-server': 'my_ip',
0|server | connection: 'Keep-Alive',
0|server | 'content-length': '43929' }
阅读完标头后,我很确定任何与其他标头不冲突的键值对都应该可以正常工作,但我的“Email-To”标头似乎不起作用。有什么想法吗?
编辑:CORS(使用通配符)
Sending POST request to http://my_ip/node/upload
Fired XHR event: loadstart
Fired XHR event: readystatechange
Fired XHR event: error
XHR status: 0
XHR status text:
Fired XHR event: loadend
编辑 2:我尝试使用邮递员发送 POST 请求,效果很好。我可以像平常一样检索标题。
编辑 3:我像这样添加 CORS:
app.post('/upload', function(req, res) {
res.header("Access-Control-Allow-Origin", "*");
res.header("Access-Control-Allow-Headers", "Email-To");
console.log(req.headers("Email-To"))
console.log(req.get("Email-To"))
});
从 req.headers 获取值时,请使用小写的参数名称
app.post('/upload', function(req, res) {
console.log(req.headers["email-to"])) //email-to
})
app.post('/upload', function(req, res) {
console.log(req.headers["Email-To"]))
});
app.options('/upload', function(req, res) {
res.setHeader('Access-Control-Allow-Origin','specify your origin');//do not use `*`!
res.setHeader('Access-Control-Allow-Headers','Email-To');
res.setHeader('Access-Control-Allow-Methods','POST');
res.end();
});
app.post('/upload', (req, res) => {
console.log(req.headers["Email-To"]))
});
redirectDomain
,它将转换为
redirectdomain
。我将其更改为
Redirect-Domain
并将其读为
redirect-domain
。将其读作
Redirect-Domain
可能也会起作用。