If I open this URL in browser
https://maps.googleapis.com/maps/api/place/textsearch/json?query=STUDIO+DAL+BON+SRL+ASOLO+FRAZ.+CASELLA®ion=IT&key=api_key
I can see one result for query.
If I try to get same thing from code (with the same URL), I obtain ZERO RESULT...why?
WebClient wsClient = new WebClient();
Stream stream = wsClient.OpenRead(url);
reader = new StreamReader(stream);
string resultString = reader.ReadToEnd();
Related
I have an .net core WEB API method that needs to call another external API (java) which expects .zip file. When try to access the external API via Postman by attaching the file, it is working fine (getting expected response). However when i pass the same parameters via my WEB API code, it is throwing 403-Forbidden error.
Please let me know if i am missing anything....
Thanks in advance!!!
request-header
request-body-file-attached
response-403-error
API code: for connecting to api:
Dictionary<string, string> parameters = new Dictionary<string, string>();
parameters.Add("pane", "forward");
parameters.Add("forward_path", "/store/execute");
parameters.Add("csrf", "1996fe6b2d0c97a8a0db725a10432d83");
parameters.Add("data_format", "binary");
newContent = new FormUrlEncodedContent(parameters);
MultipartFormDataContent form = new MultipartFormDataContent();
HttpContent con;// = new StringContent("file_name");
//form.Add(con, "file_name");
form.Add(newContent);
var str = new FileStream("D:\\dummy\\xmlstore.zip", FileMode.Open);
con = new StreamContent(str);
con.Headers.ContentDisposition = new ContentDispositionHeaderValue("form-data")
{
Name = "file_name",
FileName = "xmlstore.zip"
};
con.Headers.ContentType = new MediaTypeHeaderValue("application/zip");
form.Add(con);
client.DefaultRequestHeaders.Add("Cookie", "JSESSIONID=05DEB277E294CBF73288F2E24682C7EE;");
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("text/html"));
client.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("gzip"));
client.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("deflate"));
client.DefaultRequestHeaders.AcceptEncoding.Add(new StringWithQualityHeaderValue("br"));
client.DefaultRequestHeaders.UserAgent.Add(new ProductInfoHeaderValue("user-agent", "1"));
var resp = client.PostAsync("java-api", con).Result;
I want my bot to send a PDF file to the user. I have the PDF as a base64 string and tried to send it through an attachment:
Attachment attachment1 = new Attachment();
attachment1.Name = "name.pdf";
attachment1.ContentType = "application/pdf";
attachment1.ContentUrl = "data:application/pdf;base64," + base64String;
var m = context.MakeMessage();
m.Attachments.Add(attachment1);
m.Text = "File";
await context.PostAsync(m);
Within the emulator, it just doesn't work but in the channels Telegram and Facebook (which I need), the bot just outputs an error...
Has someone already succeed in it?
Note: Using an HTTP address works fine, but I need to use the base64 string
As this method in botframework call sendDocument method of Telegram, and this method in its document property get http url or a file_id, so you can't pass base64String to this method as a valid document type.
You can follow the valid type of the document passing into the telegram in this link (also, see the following image).
The pdf file must be embedded resource. Hope it help.
if (this.channelid == "telegram")
{
var url = string.Format("https://api.telegram.org/bot{0}/sendDocument", Settings.tokentelegram);
Assembly _assembly;
Stream file;
using (var form = new MultipartFormDataContent())
{
form.Add(new StringContent(this.chat_id, Encoding.UTF8), "chat_id");
_assembly = Assembly.GetExecutingAssembly();
file = _assembly.GetManifestResourceStream("Namespace.FolderResourses.name.pdf");
form.Add(new StreamContent(file), "document", "name.pdf");
using (var client = new HttpClient())
{
await client.PostAsync(url, form);
}
}
}
We are trying to upload image to Twitter via silverlight code in WP7. We are able to post the message but not the image.
We tried all including download of their library but not getting the hint.
In following link,
https://dev.twitter.com/docs/api/1/post/statuses/update_with_media
there is one point which we are not able to set.
"Unlike POST statuses/update, this method expects raw multipart data. Your POST request's Content-Type should be set to multipart/form-data with the media[] parameter "
I am not getting it how to put it.
Can anyone please guide me or provide sample for image upload?
If your photo is called LoadedPhoto, you could create a memory stream from it
MemoryStream ms = new MemoryStream();
LoadedPhoto.SaveJpeg(ms, LoadedPhoto.PixelWidth, LoadedPhoto.PixelHeight, 0, 100);
Create OAuthCredentials object according to the authentication details you have acquired
var credentials = new OAuthCredentials
{
Type = OAuthType.ProtectedResource,
SignatureMethod = OAuthSignatureMethod.HmacSha1,
ParameterHandling = OAuthParameterHandling.HttpAuthorizationHeader,
ConsumerKey = Common.TwitterSettings.ConsumerKey,
ConsumerSecret = Common.TwitterSettings.ConsumerKeySecret,
Token = file.AccessToken,
TokenSecret = file.AccessTokenSecret,
Version = "1.0"
};
Create a RestClient and a RestRequest
var restClient = new RestClient
{
Authority = "https://upload.twitter.com"
};
var restRequest = new RestRequest
{
Credentials = credentials,
Path = "/1/statuses/update_with_media.xml",
Method = Hammock.Web.WebMethod.Post
};
Set the stream position to 0
ms.Position = 0;
Add fields to RestRequest
restRequest.AddField("status", message);
restRequest.AddFile("media[]", "ScreenShot.png", ms, "image/jpeg");
And then begin request
restClient.BeginRequest(restRequest, callback);
callback is a callback method for the request.
Taken from my blog post, see there for more details if you're interested.
In my WinPhone app I'm accessing a REST service.
At the beginnings I was using this code:
WebClient wc = new WebClient();
wc.Credentials = credentials;
wc.Headers["App-Key"] = appKey;
wc.DownloadStringCompleted +=
(o, args) => MessageBox.Show(args.Error == null ? "OK" : "Error");
wc.DownloadStringAsync(uri);
but it suddenly stopped working returning me a "The remote server returned an error: NotFound" error. After a google session and some clicks in the control panel, I didn't get it to work.
I decided to try this other way:
HttpWebRequest request = HttpWebRequest.CreateHttp(uri);
request.Credentials = credentials;
request.Headers["App-Key"] = appKey;
request.BeginGetResponse(asResult =>
{
var response = request.EndGetResponse(asResult) as HttpWebResponse;
StreamReader reader = new StreamReader(response.GetResponseStream());
string responseString = reader.ReadToEnd();
Dispatcher.BeginInvoke(
() => MessageBox.Show(response.StatusCode.ToString()));
}, null);
and it works.
I also tried to run the first snipped pointing the URI to google's home page and it works (I had to remove the credentials, of course).
Can anyone explain what's going on?
UPDATE
I managed to get it working by replacing the
wc.Credentials = new NetworkCredentials(username, password);
with
wc.Headers["Authorization"] = "Basic someBase64encodedString";
but i still wonder what happened and which are the differences between the first and the second line.
PS: the test URI is: https://api.pingdom.com/api/2.0/checks but you will need an app-key from them.
When using the Credentials property, the HttpWebRequest implementation will wait the challenge response from server before to send the 'Authorization' header value.
But this can be an issue in some cases, so you have to force Basic authentication by providing directly the Authorization header.
Example when using a REST Client library like Spring.Rest :
RestTemplate template = new RestTemplate("http://example.com");
template.RequestInterceptors.Add(new BasicSigningRequestInterceptor("login", "password"));
string result = template.GetForObject<string>(uri);
I am generating pdf using itexsharp.
I am creating MemoryStream, then when i am trying t write MemoryStream bytes in to response but no luck. When i am executing this code in my controller the pdf not coming in response. Memory stream is populaitng correctly i can see this in debugger, but for some reason this number of butes not coming in response.
Here is my code:
HttpContext.Current.Response.ContentType = "application/pdf";
...
using (Stream inputPdfStream = new FileStream(pdfFilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
using (Stream outputPdfStream = new MemoryStream())
{
PdfReader reader = new PdfReader(inputPdfStream);
PdfStamper stamper = new PdfStamper(reader, outputPdfStream);
....
//try one
outputPdfStream.WriteTo(HttpContext.Current.Response.OutputStream); // NOT POPULATING Response
//try two
HttpContext.Current.Response.BinaryWrite(outputPdfStream.ToArray()); // NOT POPULATING Response Too
HttpContext.Current.Response.End();
}
May be some one have any ideas?
Could you not use
Response.ContentType = "application/pdf"
Response.AddHeader("Content-Type", "application/pdf")
Response.WriteFile(pdfFilePath)
Response.End()
You should use the FileContentResult Controller.File(byte[] content, string contentType) method:
public ActionResult GeneratePDF()
{
var outputStream = new MemoryStream(); // This will hold the pdf you want to send in the response
/*
* ... code here to create the pdf in the outputStrem
*/
return File(outputStream.ToArray(), "application/pdf");
}
Source: Building PDFs in Asp.Net MVC 2.
Probably the memorystream is still set at the position after the last written byte. It will write all bytes from the current position (which is none). If you do a outputPdfStream.Seek(0) it will set the position back to the first byte, and will write the contents of the whole stream to the response output.
Anyway, like Dean says, you should just use the Reponse.WriteFile method.