I am trying to call an Azure API (Text Analytics API) from a C# console application with a HttpRequest and I do not want to use any DLLs or await
but using the below snippet I am receiving "Bad Request". Can someone help me where it is going wrong.
public static void ProcessText()
{
string apiKey = "KEY FROM AZURE";
var client = new HttpClient();
var queryString = HttpUtility.ParseQueryString(string.Empty);
// Request headers
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", apiKey);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var requestUri = "https://eastus.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment?" + queryString;
//HttpResponseMessage response;
// Request body
byte[] byteData = Encoding.UTF8.GetBytes("I really love Azure. It is the best cloud platform");
using (var content = new ByteArrayContent(byteData))
{
//content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
var response = client.PostAsync(requestUri, content).Result;
Console.WriteLine(response);
Console.ReadLine();
}
}
string apiKey = "<<Key from Azure>>";
var client = new HttpClient();
var queryString = HttpUtility.ParseQueryString(string.Empty);
// Request headers
client.DefaultRequestHeaders.Add("Ocp-Apim-Subscription-Key", apiKey);
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
var requestUri = "https://**eastus**.api.cognitive.microsoft.com/text/analytics/v2.0/sentiment?" + queryString;
//HttpResponseMessage response;
var body = new
{
documents = new[]
{
new
{
ID="1", text="I really love Azure. It is the best cloud platform"
}
}
};
string json = JsonConvert.SerializeObject(body);
byte[] byteData = Encoding.UTF8.GetBytes(json);
dynamic item = null;
using (var con = new ByteArrayContent(byteData))
{
//content.Headers.ContentType = new MediaTypeHeaderValue("application/json");
var response = client.PostAsync(requestUri, con).Result;
if (response.StatusCode == HttpStatusCode.OK)
{
string res = string.Empty;
using (HttpContent content = response.Content)
{
Task<string> result = content.ReadAsStringAsync();
res = result.Result;
}
JavaScriptSerializer serializer = new JavaScriptSerializer();
item = serializer.Deserialize<object>(res);
}
}
Hi All, I could able to get the API output using the above approach
Im using Asp.net Core, for calling an asmx service which has 4 methods and i want to call one of them by the name: Verify method, i do this steps:
1-Create realted SOAP:
private XmlDocument CreateSoapEnvelope(PayVM payModel)
{
XmlDocument soapEnvelop = new XmlDocument();
string requiredXML = string.Format(#"<SOAP-ENV:Envelope xmlns:SOAP-ENV=""http://schemas.xmlsoap.org/soap/envelope/"" xmlns:xsi=""http://www.w3.org/1999/XMLSchema-instance"" xmlns:xsd=""http://www.w3.org/1999/XMLSchema""><SOAP-ENV:Body><verifyTransaction xmlns=""http://tempuri.org/""> <String_1 xsi:type=""xsd:string"">{0}</String_1><String_2 xsi:type=""xsd:string"">{1}</String_2></verifyTransaction></SOAP-ENV:Body></SOAP-ENV:Envelope>", payModel.ReNO, payModel.MID);
soapEnvelop.LoadXml(requiredXML);
return soapEnvelop;
}
2-create the HttpClient and send my request:
XmlDocument soapRequest = CreateSoapEnvelope(iPGVerifyResultModel);
using (var client = new HttpClient())
{
var request = new HttpRequestMessage()
{
RequestUri = new Uri("relatedUri/ServiceName.asmx"),
Method = HttpMethod.Post
};
request.Content = new StringContent(soapRequest.ToString(), Encoding.UTF8, "text/xml");
request.Headers.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("text/xml"));
request.Content.Headers.ContentType = new MediaTypeHeaderValue("text/xml");
request.Headers.Add("SOAPAction", "Verify"); //I want to call this method
HttpResponseMessage response = client.SendAsync(request).Result;
if (!response.IsSuccessStatusCode)
{
throw new Exception();
}
Task<Stream> streamTask = response.Content.ReadAsStreamAsync();
Stream stream = streamTask.Result;
var sr = new StreamReader(stream);
var soapResponse = XDocument.Load(sr);
//do some other stuff...
}
but i didn't result, i try uses service by same parameters with Soap UI and the service work properly, but in my way i got StatusCode: 400 what is the problem?
I am trying to get the accesstoken like this,
string uri = "https://graph.facebook.com/oauth/access_token?client_id=" +
APP_ID +
"&redirect_uri=&client_secret=" + APP_SECRET + "&grant_type=client_credentials";
var access_token = GetMyData(uri);
public async Task<string> GetMyData(string urlToCall)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(urlToCall);
request.Method = "GET";
HttpWebResponse response = (HttpWebResponse)await request.GetResponseAsync();
using (var sr = new StreamReader(response.GetResponseStream()))
{
return sr.ReadToEnd();
}
}
public static Task<HttpWebResponse> GetResponseAsync(this HttpWebRequest request)
{
var taskComplete = new TaskCompletionSource<HttpWebResponse>();
request.BeginGetResponse(asyncResponse =>
{
try
{
HttpWebRequest responseRequest = (HttpWebRequest)asyncResponse.AsyncState;
HttpWebResponse someResponse = (HttpWebResponse)responseRequest.EndGetResponse(asyncResponse);
taskComplete.TrySetResult(someResponse);
}
catch (WebException webExc)
{
HttpWebResponse failedResponse = (HttpWebResponse)webExc.Response;
taskComplete.TrySetResult(failedResponse);
}
}, request);
return taskComplete.Task;
}
It gets stuck in the var taskComplete = new TaskCompletionSource(); and takes a lot of time and does not get the accesstoken also.what is wrong?
You can probably achieve this with the following code
public void GetMyData(string urlToCall)
{
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(urlToCall);
request.BeginGetResponse(new AsyncCallback(ReadWebRequestCallback), request);
}
private static void ReadWebRequestCallback(IAsyncResult callbackResult)
{
HttpWebRequest myRequest = (HttpWebRequest)callbackResult.AsyncState;
HttpWebResponse myResponse = (HttpWebResponse)myRequest.EndGetResponse(callbackResult);
using (StreamReader httpwebStreamReader = new StreamReader(myResponse.GetResponseStream()))
{
// Here you get the result
string results = httpwebStreamReader.ReadToEnd();
}
myResponse.Close();
}
I am using SOAPConnection to to invoke a SOAP based web service. The request is sent with "Accept-Encoding: gzip,deflate" in the header.
I used fiddler to grab the response, it is gzipped compressed, but while deserializing the message, the SOAPConnection is giving an error saying "invalid utf-8" message.
I tried normal http post and the http response is able to unzip the response correctly. Do I need to set some attributes on SOAPConnection to get it to handle the gzip message?
I found this snippet doing the job
SOAPMessage response = conn.call(finalRequest, aUrl);
// The response is gzip encoded, so decompress the response.
ByteArrayOutputStream out = new ByteArrayOutputStream();
response.writeTo(out);
byte[] barr = out.toByteArray();
InputStream gzipStream = new GZIPInputStream(new ByteArrayInputStream(barr));
Reader decoder = new InputStreamReader(gzipStream, "UTF-8");
BufferedReader buffered = new BufferedReader(decoder);
int n = 0;
char[] cbuf = new char[1024];
Writer w = new StringWriter();
while ((n = buffered.read(cbuf)) != -1) {
w.write(cbuf,0,n);
}
// the writer now contains unzipped message.
System.out.println(w.toString());
GZIP Request,Response form Server:
If the server is enable with GZip then the server sends gzip-compress text data. For this we need over a request with Http headers as:
Request: We must send a HTTP request containing the Accept-Encoding: gzip header.
Response: If gzip is enabled, the server should return the Content-Encoding: gzip header.
Soap WebServies:
a - Grahical Weather Endpoint HTTPS and its WSDL URL OnlineClient
Response Headers:
Content-Type:text/xml; charset=ISO-8859-1
Vary:Accept-Encoding
Content-Encoding:gzip
Plain Response - DemoOnline Webserice HTTP. for example see stackpostResponse Headers: Content-Type:application/soap+xml; charset=utf-8
Request the WebService using SOAPConnectiona and get response in GZIP compressed format:
public static String getGZIP(byte[] zipBytes) {
try {
GZIPInputStream gzipInput = new GZIPInputStream( new ByteArrayInputStream(zipBytes) );
return IOUtils.toString(gzipInput);
} catch (IOException e) {
throw new UncheckedIOException("Error while decompression!", e);
}
}
public static void getSOAPConnection(SOAPMessage soapMsg) throws Exception {
System.out.println("\n===== SOAPConnection =====");
MimeHeaders headers = soapMsg.getMimeHeaders();
headers.addHeader("SoapBinding", serverDetails.get("SoapBinding") );
headers.addHeader("MethodName", serverDetails.get("MethodName") );
headers.addHeader("SOAPAction", serverDetails.get("SOAPAction") );
headers.addHeader("Content-Type", serverDetails.get("Content-Type")); // InBound
headers.addHeader("Accept-Encoding", serverDetails.get("Accept-Encoding")); // OutBound
if (soapMsg.saveRequired()) soapMsg.saveChanges();
/*SOAPMessage message = MessageFactory.newInstance().createMessage(headers, new ByteArrayInputStream(TSOXML.getBytes()));*/
SOAPConnectionFactory newInstance = SOAPConnectionFactory.newInstance();
javax.xml.soap.SOAPConnection connection = newInstance.createConnection();
SOAPMessage resp = connection.call(soapMsg, getURL( serverDetails.get("SoapServerURI") ));
MimeHeaders mimeHeaders = resp.getMimeHeaders();
String[] header = mimeHeaders.getHeader("Content-Encoding");
String contentEoncoding = "";
if (header != null && header.length > 0) contentEoncoding = header[0].toString();
System.out.println("Content:"+contentEoncoding);
if (contentEoncoding.equalsIgnoreCase("GZIP")) {
System.out.println("SOAP Message in GZIP");
ByteArrayOutputStream out = new ByteArrayOutputStream();
resp.writeTo(out);
byte[] zipBytes = out.toByteArray();
String gZipString= getGZIP(zipBytes);
System.out.println("Response:"+ gZipString);
SOAPMessage soapMessage = getSOAPMessagefromDataXML(gZipString);
System.out.println("SOAP Message Object:\n"+soapMessage);
getSOAPXMLasString(soapMessage);
} else {
getSOAPXMLasString(resp);
}
}
Requesting SOAP WS using HTTPCline. The way SOAPUI requests:
public static void getHttpURLConnection_Core(SOAPMessage soapMsg) throws Exception {
System.out.println("\n===== java.net.HttpURLConnection =====");
URL url = new URL(null, serverDetails.get("SoapServerURI"));
String protocol = url.getProtocol();
System.out.println("Protocol: "+protocol);
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(PROXY_ADDRESS, PROXY_PORT));
HttpURLConnection connection = (HttpURLConnection) url.openConnection(proxy);
connection.setReadTimeout(5 * 1000);
connection.setConnectTimeout(5 * 1000);
connection.setDoInput(true); connection.setDoOutput(true); connection.setUseCaches(true);
//String authString = username + ":" + password; // Authorization: Basic ZW9uMDE5XzAxOkVsaWFfMTIz
//String authMsg = "Basic " + Base64.encode(authString.getBytes());
//connection.setRequestProperty(javax.ws.rs.core.HttpHeaders.AUTHORIZATION, authMsg);
((HttpURLConnection) connection).setRequestMethod("POST");
connection.setRequestProperty(javax.ws.rs.core.HttpHeaders.ACCEPT, "text/xml");
connection.setRequestProperty(javax.ws.rs.core.HttpHeaders.ACCEPT_LANGUAGE, "en-US,en;q=0.9");
connection.setRequestProperty("MethodName", serverDetails.get("MethodName") );
connection.setRequestProperty("SOAPAction", serverDetails.get("SOAPAction") );
connection.setRequestProperty("HTTP_ACCEPT_ENCODING", "gzip, deflate, br");
connection.setRequestProperty("Accept-Encoding", serverDetails.get("Accept-Encoding"));
String soapxmLasString = getSOAPXMLasString(soapMsg);
connection.setRequestProperty(javax.ws.rs.core.HttpHeaders.CONTENT_TYPE, "text/xml");// serverDetails.get("Content-Type")
connection.setRequestProperty( "Content-Length", String.valueOf(soapxmLasString.length()));
DataOutputStream dataOutputStream = new DataOutputStream(connection.getOutputStream());
try {
dataOutputStream.writeBytes(soapxmLasString);
} finally {
dataOutputStream.close();
}
long start = System.currentTimeMillis();
long end = System.currentTimeMillis();
String date = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss").format(Calendar.getInstance().getTime());
System.out.println("TIme taken Date:"+date+", Time:"+ (end-start));
String contentEncoding = connection.getContentEncoding();
System.out.println("Encoding:"+ contentEncoding);
int responseCode = connection.getResponseCode();
String responseMessage = connection.getResponseMessage();
System.out.println("Response Code: " + responseCode + " " + responseMessage);
String xmlRply = null ;
String requestStatus = "Fail";
if (responseCode == HttpURLConnection.HTTP_OK) {
requestStatus = "Pass";
InputStream inputStream = connection.getInputStream();
xmlRply = getStreamContent(inputStream, contentEncoding);
} else { // Response Code: 500 Internal Server Error
InputStream errorStream = connection.getErrorStream();
xmlRply = getStreamContent(errorStream, contentEncoding);
}
System.out.println("Reply: " + xmlRply);
System.out.println("Request Status:"+ requestStatus);
}
public static String getStreamContent(InputStream input, String encoding) throws IOException {
byte[] httpRply;
String rply;
httpRply = IOUtils.toByteArray(input);
System.out.println("Byte Array:"+httpRply.toString());
if (encoding == null) {
rply = new String(httpRply);
} else if ( encoding.equalsIgnoreCase("GZIP") ) {
rply = getGZIP(httpRply);
} else { // "ISO-8859-1", ";TF-8"
rply = new String(httpRply, encoding);
}
return rply;
}
Working example where the Server response with GZIP format.
public class SOAP_Weather {
static final String PROXY_ADDRESS = "Proxy_*****.net";
static final int PROXY_PORT = 9400;
static HashMap<String, String> serverDetails = new HashMap<>();
static {
// https://graphical.weather.gov/xml/ : conus
serverDetails.put("SoapServerURI", "https://graphical.weather.gov:443/xml/SOAP_server/ndfdXMLserver.php");
serverDetails.put("SoapWSDL", "https://graphical.weather.gov/xml/SOAP_server/ndfdXMLserver.php?wsdl");
serverDetails.put("SoapXML", "<ndf:CornerPoints xmlns:ndf=\"https://graphical.weather.gov/xml/DWMLgen/wsdl/ndfdXML.wsdl\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\"><sector xsi:type=\"xsd:string\">conus</sector></ndf:CornerPoints>");
serverDetails.put("SoapBinding", "ndfdXMLBinding");
serverDetails.put("MethodName", "CornerPoints");
serverDetails.put("SOAPAction", "https://graphical.weather.gov/xml/DWMLgen/wsdl/ndfdXML.wsdl#CornerPoints");
serverDetails.put("User-Agent", "Apache-HttpClient");
serverDetails.put("Accept-Encoding", "gzip,deflate,sdch");
serverDetails.put("Content-Type", "text/xml;charset=UTF-8");
}
public static void main(String[] args) throws Exception {
callSoapService();
}
public static void callSoapService( ) throws Exception{
String xmlData = serverDetails.get("SoapXML");
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
dbFactory.setNamespaceAware(true);
dbFactory.setIgnoringComments(true);
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
InputSource ips = new org.xml.sax.InputSource(new StringReader(xmlData));
Document docBody = dBuilder.parse(ips);
//docBody.createElementNS(DSIG_NS, "ds");
System.out.println("Data Document: "+docBody.getDocumentElement());
// Protocol 1.1=SOAP-ENV Content-Type:text/xml; charset=utf-8, 1.2=env Content-Type:application/soap+xml; charset=utf-8
MessageFactory messageFactory = MessageFactory.newInstance(SOAPConstants.SOAP_1_2_PROTOCOL);
SOAPMessage soapMsg = messageFactory.createMessage();
SOAPPart soapPart = soapMsg.getSOAPPart();
SOAPEnvelope soapEnv = soapPart.getEnvelope();
SOAPBody soapBody = soapEnv.getBody();
soapBody.addDocument(docBody);
// Invoke the webService.
System.out.println("Request SOAP Message:");
soapMsg.writeTo(System.out);
System.out.println("\n");
// Protocol 1.1=SOAP-ENV Content-Type:text/xml; charset=utf-8, 1.2=env Content-Type:application/soap+xml; charset=utf-8
SOAPEnvelope envelope = soapMsg.getSOAPPart().getEnvelope();
if (envelope.getElementQName().getNamespaceURI().equals("http://schemas.xmlsoap.org/soap/envelope/")) {
System.out.println("SOAP 1.1 NamespaceURI: http://schemas.xmlsoap.org/soap/envelope/");
serverDetails.put("Content-Type", "text/xml; charset=utf-8");
} else {
System.out.println("SOAP 1.2 NamespaceURI: http://www.w3.org/2003/05/soap-envelope");
serverDetails.put("Content-Type", "application/soap+xml; charset=utf-8");
}
getSOAPConnection(soapMsg); // Disadvantage 1:
getHttpURLConnection_Core(soapMsg);
}
private static URL getURL(String endPointUrl) throws MalformedURLException {
URL endpoint = new URL(null, endPointUrl, new URLStreamHandler() {
protected URLConnection openConnection(URL url) throws IOException {
URL clone = new URL(url.toString());
URLConnection connection = null;
if (PROXY_ADDRESS != null && PROXY_PORT != 0 ) { // https://stackoverflow.com/a/22533464/5081877
Socket socket = new Socket();
SocketAddress sockaddr = new InetSocketAddress(PROXY_ADDRESS, PROXY_PORT);
socket.connect(sockaddr, 10000);
Proxy proxy = new Proxy(Proxy.Type.HTTP, new InetSocketAddress(socket.getInetAddress(), PROXY_PORT));
if (proxy.address().toString().equals("0.0.0.0/0.0.0.0:80") || proxy.address().toString() != null) {
System.out.println("Connection through proxy ...");
connection = clone.openConnection(proxy);
} else {
connection = clone.openConnection();
}
} else {
connection = clone.openConnection();
}
connection.setConnectTimeout(5 * 1000); // 5 sec
connection.setReadTimeout(5 * 1000); // 5 sec
return connection;
}
});
return endpoint;
}
public static String getSOAPXMLasString(SOAPMessage soapMsg) throws SOAPException, IOException {
ByteArrayOutputStream out = new ByteArrayOutputStream();
soapMsg.writeTo(out);
// resp.writeTo(System.out);
String strMsg = new String(out.toByteArray());
System.out.println("Soap XML: "+ strMsg);
return strMsg;
}
public static SOAPMessage getSOAPMessagefromDataXML(String saopBodyXML) throws Exception {
DocumentBuilderFactory dbFactory = DocumentBuilderFactory.newInstance();
dbFactory.setNamespaceAware(true);
dbFactory.setIgnoringComments(true);
DocumentBuilder dBuilder = dbFactory.newDocumentBuilder();
InputSource ips = new org.xml.sax.InputSource(new StringReader(saopBodyXML));
Document docBody = dBuilder.parse(ips);
System.out.println("Data Document: "+docBody.getDocumentElement());
MessageFactory messageFactory = MessageFactory.newInstance(SOAPConstants.SOAP_1_2_PROTOCOL);
SOAPMessage soapMsg = messageFactory.createMessage();
SOAPBody soapBody = soapMsg.getSOAPPart().getEnvelope().getBody();
soapBody.addDocument(docBody);
return soapMsg;
}
// SOPAConneciton and HTTPClien connection functions
}
did you see this?
SOAPMessage - SOAPConnection - gzip - how to
Also, if you use AXIS2, it has built-in features to enable compression of base64-encoded binary content using MTOM:
http://axis.apache.org/axis2/java/core/docs/mtom-guide.html
Just to complete that snippet - if you want to work with the decompressed SOAPMessage you need to load it into a new message.
SOAPMessage responseCompressed = connection.call(reqMessage, endpoint);
ByteArrayOutputStream out = new ByteArrayOutputStream();
responseCompressed.writeTo(out);
byte[] barr = out.toByteArray();
InputStream gzipStream = new GZIPInputStream(new ByteArrayInputStream(barr));
Here is the magic line
SOAPMessage response = factory.createMessage(responseCompressed.getMimeHeaders(), gzipStream);
Where factory is your MessageFactory.
Now response will function like it did without the gzip headers. You just drop it in.
I'm using the WebRequest object to post data to a login page, then post data to a seperate page on the same site. I am instantiating a CookieContainer and assigning it to the WebRequest object so that the cookies are handled. The problem is that I do not want to retain the cookie after I post data to the other page. How can I delete that cookie?
private CookieContainer cookie_m;
protected CookieContainer CookieContainer
{
get
{
if (cookie_m == null)
{
cookie_m = new CookieContainer();
}
return cookie_m;
}
set
{
cookie_m = value;
}
}
protected virtual void SetData(WebRequest request, string sData)
{
if (!String.IsNullOrEmpty(sData))
{
byte[] binPostData = System.Text.Encoding.ASCII.GetBytes(sData);
request.ContentLength = binPostData.Length;
System.IO.Stream sRequest = request.GetRequestStream();
try
{
sRequest.Write(binPostData, 0, binPostData.Length);
}
finally
{
sRequest.Close();
}
}
}
private HttpWebRequest GetNewRequest(string sUrl)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create(sUrl);
request.CookieContainer = this.CookieContainer;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
return request;
}
public override void Submit()
{
//Login
HttpWebRequest request = GetNewRequest("http://mytest/login.asp");
base.SetData(request, "action=validate_login&login=test&password=test");
WebResponse response = request.GetResponse();
System.IO.StreamReader sr = new System.IO.StreamReader(response.GetResponseStream());
string sResponse = sr.ReadToEnd();
//Entry screen
request = GetNewRequest("http://mytest/CustCreate.asp");
base.SetData(request, "Site=xyz&Cust=test");
response = request.GetResponse();
sr = new System.IO.StreamReader(response.GetResponseStream());
sResponse = sr.ReadToEnd();
//Sutmit
request = request = GetNewRequest("http://mytest/CustCreate.asp");
base.SetData(request, "Site=xyz&mydatahere&B1=Submit");
response = request.GetResponse();
sr = new System.IO.StreamReader(response.GetResponseStream());
sResponse = sr.ReadToEnd();
//How to delete cookies that have been saved?
}
To delete a cookie, you need to set the expiration date on it to a date in the past. This tells the browser it's expired and the browser will delete it.
Here's an example from msdn on how to do this in C# (not sure which language you're using).
if (Request.Cookies["UserSettings"] != null)
{
HttpCookie myCookie = new HttpCookie("UserSettings");
myCookie.Expires = DateTime.Now.AddDays(-1d);
Response.Cookies.Add(myCookie);
}