卷曲POST作品,但离子这个.http.post不
我努力获得离子this.http.post
工作。卷曲POST作品,但离子这个.http.post不
如果我在终端使用卷曲它的伟大工程:
curl -v -X POST \
https://myuser-name:[email protected]:5984/_session \
-d 'name=app&password=ijF3Ui7VYVbbSejmwsnVVo'
它给了我下面的输出:
Note: Unnecessary use of -X or --request, POST is already inferred.
* Trying 37.1.96.50...
* TCP_NODELAY set
* Connected to app.mysite.com (37.1.96.49) port 5984 (#0)
* TLS 1.2 connection using TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
* Server certificate: app.mysite.com
* Server certificate: COMODO RSA Domain Validation Secure Server CA
* Server certificate: COMODO RSA Certification Authority
* Server auth using Basic with user 'myuser-name'
> POST /_session HTTP/1.1
> Host: app.mysite.com:5984
> Authorization: Basic cDpkTUQySzg0a2lqRjNVaTdWWVZiYlNlam13c25WVm8=
> User-Agent: curl/7.54.0
> Accept: */*
> Content-Length: 52
> Content-Type: application/x-www-form-urlencoded
>
* upload completely sent off: 52 out of 52 bytes
< HTTP/1.1 200 OK
< Set-Cookie: AuthSession=ZWhzLWFwcDo1OUFENThGRjruBtcPzHcqc1sC9WXrcWI7R27_Mg; Version=1; Secure; Path=/; HttpOnly
< Server: CouchDB/1.6.1 (Erlang OTP/18)
< Date: Mon, 04 Sep 2017 13:45:35 GMT
< Content-Type: text/plain; charset=utf-8
< Content-Length: 43
< Cache-Control: must-revalidate
<
{"ok":true,"name":null,"roles":["_admin"]}
* Connection #0 to host app.mysite.com left intact
我离子POST代码如下所示:
login(callerName:string):any
// Make sure we have a CouchDB session so that PouchDB can access the CouchDB database
{
console.log('Authentication: login(): Login function called from ' + callerName);
return new Promise(resolve => {
let headers = new Headers();
headers.append('Content-Type', 'application/json');
let credentials = {
name: COUCHDB_USER,
password: COUCHDB_PASSWORD
};
let result = {
success: false,
data: []
};
console.log('Authentication: login(): credentials = ' + JSON.stringify(credentials));
// NOTE:
//
// If POST is called with COUCHDB_SERVER with no auth in the url I get the error: Response with status: 401 Unauthorized for URL: https://app.mysite.com:5984/_session"
//
// If POST is called with COUCHDB_SERVER WITH auth in url I get the error: Response with status: 0 for URL: null
// This 'might' mean:
// Timeout from server
// Request not sent
// Requesting an unreachable url
// ...
// This WORKS with curl in terminal
//
// With auth in url: https://myuser-name:[email protected]:5984/_session
// Without auth in url: https://app.mysite.com:5984/_session
//
this.http.post(COUCHDB_SERVER + '/_session', JSON.stringify(credentials), {headers: headers})
.subscribe(res => {
var details = res.json();
console.log('Authentication: login(): SuperLogin successful login: res = ' + JSON.stringify(details));
result.success = true;
result.data = details;
resolve(result);
},
(err) => {
console.log('Authentication: login(): Login failed err = ' + err);
let details = err.json();
result.success = false;
result.data = details;
resolve(result);
});
});
}
如果我尝试POST离子在URL中没有权威性,我得到一个合理的错误消息:
Response with status: 401 Unauthorized for URL: https://app.mysite.com:5984/_session"
但是,如果我添加权威性的网址,我得到一个错误消息并没有告诉我什么问题是:
Response with status: 0 for URL: null
我不能工作为什么它与curl工作,但不在离子http.post内。
我有同样的问题,无论我运行ionic serve
还是我在iPhone上运行应用程序。
UPDATE
我已经运行在Chrome离子App和现在有一个更好的错误:
error: "unauthorized", reason: "Authentication required."
所以很显然我没有收到POST请求正确的,但不能看为什么。
由于this.http.post
的使用不正确:第二个参数应该是HTTP请求正文对象(JSON,credential
对象),而不是字符串,因此身份验证在离子中失败。例如,请参阅https://angular.io/guide/http。
代码发送HTTP请求将是:
this.http.post(COUCHDB_SERVER + '/_session', credentials, {headers: headers})...
它工作在卷曲,但不是在离子 - 那是因为由卷曲发送的HTTP请求的Content-Type
是application/x-www-form-urlencoded
,和卷曲的语法是正确的。
我应该在URL中添加auth吗? - 我想这意味着URL中的myuser-name:[email protected]
部分。答案是否定:卷曲(在请求中添加Authorization
标题),但在浏览器中不起作用,请检查Pass username and password in URL for HTTP Basic Auth了解详情。
更新:似乎在CouchDB中强制执行基本身份验证。为了满足它,可以在HTTP请求中手动添加Authorization
标头:
headers.append('Authorization', 'Basic ' + window.btoa(username + ':' + password))
我已经从网址中删除了身份验证,我的http.post现在按照您的示例。我现在正在弹出一个“需要身份验证”模式。 –
我阅读Pass用户名的帖子,非常有用,谢谢。它解释了很多,我应该知道,但没有。特别是为什么卷曲的作品,但邮差没有。有趣的是,我无法让邮递员与我的POST通话一起工作。也许这是连接? –
@BillNoble看起来您的CouchDB中启用了基本身份验证。为了满足弹出的“需要验证”模式,您可以手动添加离子代码中的Authorization标头。如:'headers.append('授权','基本'+ window.btoa(用户名+':'+密码))' – shaochuancs
由curl和ionic发送的HTTP请求是不同的。 curl发送的HTTP请求的'Content-Type'是'application/x-www-form-urlencoded',离子发送的是'application/json'。你可以让他们一致并再试一次吗? – shaochuancs
@shaochuancs不幸的是我仍然得到同样的错误。我更新了我的问题,以显示在Chrome上我现在得到了一个明智的错误:错误:“未经授权”,原因:“需要身份验证。”所以很明显,我没有正确地形成我的POST请求 –
是的...你已经通过'JSON.stringify(凭证)'将它转换为字符串。但没有必要,只需将'credential'作为this.http.post的第二个参数传递就可以了。官方示例请参阅https://angular.io/guide/http。 – shaochuancs