I am currently working on a C# Programm that is supposed to get Data from a REST API that I host.
The API requires a token for authentication which is returned from a POST request.
When I try to do the POST with C# I get a bad request (Status 400) but the GET request works fine. Now, My question is what I did wrong or what might be the cause for that error. When doing the request with postman both work perfectly.
The POST function:
void POST(string url, string jsonContent) {
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
Byte[] byteArray = encoding.GetBytes(jsonContent);
request.ContentLength = byteArray.Length;
request.ContentType = #"application/json";
using (Stream dataStream = request.GetRequestStream()) {
dataStream.Write(byteArray, 0, byteArray.Length);
}
long length = 0;
try {
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse()) {
length = response.ContentLength;
Console.WriteLine(response);
}
} catch (WebException ex) {
Console.WriteLine(ex);
}
}
The GET function:
string GET(string url) {
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
try {
WebResponse response = request.GetResponse();
using (Stream responseStream = response.GetResponseStream()) {
StreamReader reader = new StreamReader(responseStream, System.Text.Encoding.UTF8);
return reader.ReadToEnd();
}
} catch (WebException ex) {
WebResponse errorResponse = ex.Response;
using (Stream responseStream = errorResponse.GetResponseStream()) {
StreamReader reader = new StreamReader(responseStream, System.Text.Encoding.GetEncoding("utf-8"));
String errorText = reader.ReadToEnd();
// log errorText
}
throw;
}
}
Related
I'm new to ASP.NET development and the use of webhooks.
I'm using ASP.NET and an Azure Automation Account which has a webhook. I can currently execute the webhook, however I would like to have my code wait until it receives the output of the webhook. How best to do this?
ASP.NET Code:
public ActionResult UpdateAll()
{
(random db calls)
string jsonList = JsonConvert.SerializeObject(userEnvironmentList);
try
{
string uri = "webhook_url";
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
string data = jsonList;
request.Method = "POST";
request.ContentType = "text/plain;charset=utf-8";
System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
byte[] bytes = encoding.GetBytes(data);
request.ContentLength = bytes.Length;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(bytes, 0, bytes.Length);
}
request.BeginGetResponse((x) =>
{
using (HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(x))
{
using (Stream stream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(stream, Encoding.UTF8);
String responseString = reader.ReadToEnd();
}
}
}, null);
}
catch (Exception ex)
{
throw ex;
}
return View();
}
PS in Automation Account:
param
(
[Parameter (Mandatory = $false)]
[object] $WebhookData
)
if ($WebhookData) {
return "Finally this works"
}
Call GetResponse in a synchronized context then.
Change ...
request.BeginGetResponse((x) =>
{
using (HttpWebResponse response = (HttpWebResponse)request.EndGetResponse(x))
{
using (Stream stream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(stream, Encoding.UTF8);
String responseString = reader.ReadToEnd();
}
}
}, null);
To ...
var response = (HttpWebResponse)webRequest.GetResponse();
using (Stream stream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(stream, Encoding.UTF8);
String responseString = reader.ReadToEnd();
}
note: GetResponse() waits till the underlying web request finishes, then it returns the result. no need to use BeginGetResponse() in your code context.
I'm trying to log in into iCloud using a Json Post request in C#. Before trying to implement the code I was studying a little bit the iCloud requests using Chrome Console and using an Ad-on to replicate the requests in order to obtain the same result of the website.
First of All I checked the request directly from iCloud website:
And this is the response:
{
"serviceErrors" : [ {
"code" : "-20101",
"message" : "Il tuo ID Apple o la password non sono corretti."
} ]
}
Using "Advance REST Client" ad Chrome plugin to replicate the request I ve tried the same Json request to the same Url. But I get Empty response:
I Also tried to copy and paste the whole Header (All the settings) and than send the request but the response is the same:
Anyone has an Advice?
UPDATE: I tried to implement A Json request through c# program:
var httpWebRequest = (HttpWebRequest)WebRequest.Create("https://idmsa.apple.com/appleauth/auth/signin");
httpWebRequest.ContentType = "application/json";
httpWebRequest.Method = "POST";
using (var streamWriter = new StreamWriter(httpWebRequest.GetRequestStream()))
{
string json = "{accountName: \"briesanji #gmail.com\", password: \"testPassword\", rememberMe: false, trustTokens: []}";
streamWriter.Write(json);
streamWriter.Flush();
streamWriter.Close();
}
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
using (var streamReader = new StreamReader(httpResponse.GetResponseStream()))
{
var result = streamReader.ReadToEnd();
}
The problem is that Execution breaks when the
var httpResponse = (HttpWebResponse)httpWebRequest.GetResponse();
is hit and it gives me this error: System.Net.WebException: 'Error Remote Server: (400) Request not valid.'
UPDATE: I solved in this way:
void POST(string url, string jsonContent)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
request.Method = "POST";
System.Text.UTF8Encoding encoding = new System.Text.UTF8Encoding();
Byte[] byteArray = encoding.GetBytes(jsonContent);
request.ContentLength = byteArray.Length;
request.ContentType = #"application/json";
using (Stream dataStream = request.GetRequestStream())
{
dataStream.Write(byteArray, 0, byteArray.Length);
}
long length = 0;
try
{
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
length = response.ContentLength;
}
}
catch (WebException ex)
{
// Log exception and throw as for GET example above
}
}
string GET(string url)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
try
{
WebResponse response = request.GetResponse();
using (Stream responseStream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);
return reader.ReadToEnd();
}
}
catch (WebException ex)
{
WebResponse errorResponse = ex.Response;
using (Stream responseStream = errorResponse.GetResponseStream())
{
StreamReader reader = new StreamReader(responseStream, Encoding.GetEncoding("utf-8"));
String errorText = reader.ReadToEnd();
// log errorText
}
throw;
}
}
Anyways I tested also the Answer and it was good to.. So I check it as valid thanks.
With this i dont get any error and the response content of the second request just tells me that there were too many failed logins for the test account...
private static void ICloud()
{
var cc = new CookieContainer();
var first = (HttpWebRequest)WebRequest.Create("https://idmsa.apple.com/appleauth/auth/signin?widgetKey=83545bf919730e51dbfba24e7e8a78d2&locale=de_DE&font=sf");
first.Method = "GET";
first.CookieContainer = cc;
var response1 = (HttpWebResponse)first.GetResponse();
using (var streamReader = new StreamReader(response1.GetResponseStream()))
{
var result = streamReader.ReadToEnd();
}
var second = (HttpWebRequest)WebRequest.Create("https://idmsa.apple.com/appleauth/auth/signin");
second.ContentType = "application/json";
second.Method = "POST";
second.Accept = "application/json";
second.CachePolicy = new RequestCachePolicy(RequestCacheLevel.NoCacheNoStore);
second.Referrer = "https://idmsa.apple.com/appleauth/auth/signin?widgetKey=83545bf919730e51dbfba24e7e8a78d2&locale=de_DE&font=sf";
second.Headers.Add("X-Requested-With", "XMLHttpRequest");
second.Headers.Add("X-Apple-Widget-Key", "83545bf919730e51dbfba24e7e8a78d2");
using (var streamWriter = new StreamWriter(second.GetRequestStream()))
{
string json = "{\"accountName\":\"test#icloud.com\",\"password\":\"test\",\"rememberMe\":false,\"trustTokens\":[]}";
streamWriter.Write(json);
streamWriter.Flush();
streamWriter.Close();
}
try
{
var response2 = (HttpWebResponse)second.GetResponse();
using (var streamReader = new StreamReader(response2.GetResponseStream()))
{
var result = streamReader.ReadToEnd();
}
}
catch(WebException we)
{
using (var r = new StreamReader(we.Response.GetResponseStream()))
{
var result2 = r.ReadToEnd();
}
}
}
i am using this code to get json data
public static string GetAllScores(string url)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
try
{
WebResponse response = request.GetResponse();
using (Stream responseStream = response.GetResponseStream())
{
StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);
return reader.ReadToEnd();
}
}
catch (WebException ex)
{
WebResponse errorResponse = ex.Response;
using (Stream responseStream = errorResponse.GetResponseStream())
{
StreamReader reader = new StreamReader(responseStream, Encoding.UTF8);
String errorText = reader.ReadToEnd();
}
throw;
}
}
the data is coming back and everything ok beside the data returning with é . i try lot of other users solution but nothing so far
I am working on consuming a REST API and I am using basic authentication where password is encoded to Base64 as follows
private XmlDocument sendXMLRequest(string requestXml)
{
string destinationUrl = "https://serviceapi.testgroup.com/testtp/query";
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(destinationUrl);
request.Headers["Authorization"] = "Basic " + Convert.ToBase64String(Encoding.Default.GetBytes("API_TEST_NR:Testnol1$"));
byte[] bytes;
bytes = System.Text.Encoding.ASCII.GetBytes(requestXml);
request.Method = "POST";
request.ContentLength = bytes.Length;
//request.Connection = "keep-alive";
request.ContentType = "text/xml";
request.KeepAlive = true;
request.Timeout = 2000;
request.MediaType = "text/xml";
Stream requestStream = request.GetRequestStream();
requestStream.Write(bytes, 0, bytes.Length);
requestStream.Close();
HttpWebResponse response;
Stream responseStream;
using (response = (HttpWebResponse)request.GetResponse())
{
if (response.StatusCode == HttpStatusCode.OK)
{
responseStream = response.GetResponseStream();
XmlReader reader = new XmlTextReader(responseStream);
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(reader);
try { reader.Close(); }
catch { }
try { responseStream.Close(); }
catch { }
try { response.Close(); }
catch { }
return xmlDoc;
}
}
try { response.Close(); }
catch { }
return null;
}
I'm kind of new to working on Web Api's and I know that the API responds with an access x-token after successful authorization based on the API documentaion and I am not sure how to access or capture it from the HTTP headers.
May I know a good way I can achieve this?
This is easier than I thought just capturing with its name.
string xtoken= response.Headers["custom-header"];
Console.WriteLine(xtoken);
Try this as below, represents, Request Data Using the WebRequest Class.In most cases, the WebRequest class is sufficient to receive data. However, if you need to set protocol-specific properties, you must cast the WebRequest to the protocol-specific type. For example, to access the HTTP-specific properties of HttpWebRequest, cast the WebRequest to an HttpWebRequest reference.
private XmlDocument GetRootLevelServiceDocument(
string serviceEndPoint, string oAuthToken)
{
XmlDocument xmlDoc = new XmlDocument();
HttpWebRequest request = CreateHttpRequest(serviceEndPoint,
oAuthToken);
using (HttpWebResponse response =
(HttpWebResponse)request.GetResponse())
{
using (XmlReader reader =
XmlReader.Create(response.GetResponseStream(),
new XmlReaderSettings() { CloseInput = true }))
{
xmlDoc.Load(reader);
string data = ReadResponse(response);
if (response.StatusCode != HttpStatusCode.OK)
{
LogMsg(string.Format("Error: {0}", data));
LogMsg(string.Format(
"Unexpected status code returned: {0}",
response.StatusCode));
}
}
}
return xmlDoc;
}
I need help.
I have a method: PostCustomer
HttpResponseMessage PostCustomer([FromBody] CustomerRec Logs, [FromBody] Customer customer)
Now my problem is how will I able to test this through fiddler
I know I need to call for example:
"//api/customer/PostCustomer"
But how will I pass parameters on this?
I'm testing this using fiddler.
I'm not sure if you are asking how to build the url request (passing the parameters for your method through url)
If that's it, it should be like this
api/customer/PostCustomer/?FirstParameter=Example&SecondParemeter=Example2
If you mean the request itself
string postData = string.Format("?FirstParameter=" + txt_First.Text + "&SecondParemeter=" + txt_Last.Text);
byte[] data = Encoding.UTF8.GetBytes(postData);
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("..../api/customer/PostCustomer"/" + postData);
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
request.Accept = "application/json";
request.ContentLength = data.Length;
using (Stream requestStream = request.GetRequestStream())
{
requestStream.Write(data, 0, data.Length);
}
try
{
using (WebResponse response = request.GetResponse())
{
var responseValue = string.Empty;
// grab the response
using (var responseStream = response.GetResponseStream())
{
using (var reader = new StreamReader(responseStream))
{
responseValue = reader.ReadToEnd(); // read the full response
}
}
if (responseValue != "")
{
//Do something here if response is not empty
}
}
}
catch (WebException ex)
{
// Handle error
}
PS: Can't comment on post because it asks for 50+ reputation...