I am using GitHub API v3 with C#. I am able to get the access token and using that I am able to get the user information and repo info.
But when I try to create a new repo I am getting the error as Unauthorized.
I am using HttpWebRequest to post data, which can be seen below. Please suggest me some C# sample or sample code.
(..)string[] paramName, string[] paramVal, string json, string accessToken)
{
HttpWebRequest req = WebRequest.Create(new Uri(url)) as HttpWebRequest;
req.Method = "POST";
req.ContentType = "application/json";
StreamWriter writer = new StreamWriter(req.GetRequestStream());
writer.Write(json);
writer.Close();
string result = null;
using (HttpWebResponse resp = req.GetResponse() as HttpWebResponse)
{
StreamReader reader =
new StreamReader(resp.GetResponseStream());
result = reader.ReadToEnd();
}(..)
Note: I am not sure where i need to add the accesstoken. I have tried in headers as well as in the url, but none of them works.
Are you using the C# Github API example code? I would look at that code to see if it does what you need.
You can use basic auth pretty easily by just adding auth to the request headers:
request.Headers.Add("Authorization","Basic " + Convert.ToBase64String(new ASCIIEncoding().GetBytes(username +":"+password)));
Sorry havent used the access token stuff yet.
You need to add this token here:
req.UserAgent = "My App";
req.Headers.Add("Authorization", string.Format("Token {0}", "..token..");
Try
rec.Credentials = CredentialCache.DefaultCredentials;
or use non-default credentials.
http://msdn.microsoft.com/en-us/library/system.net.httpwebrequest.credentials.aspx
Related
I am developing C# WinForms application to trade on Stex.com.
They upgraded their api to api3.
It uses google authentication app to login.
That's why there's no way to get access token without man's behavior.
Finally, I determined to use postman to get access token and I want to refresh token when the token is expired.
I think it the best way.
So I got the access token and refresh token via postman.
https://help.stex.com/en/articles/2740368-how-to-connect-to-the-stex-api-v3-using-postman .
now it's the turn to refresh my token.
so this is what I wrote.
string refresh_token = "def50200b03974080...";
string client_id = "502";
string client_secret = "SeTs50aFxV1RoMFBW1b4RVNQhh2wEdICaYQrpE3s";
string AccessToken = "eyJ0eXAiOiJKV1QiLCJhbGciO...";
string url = #"https://api3.stex.com/oauth/token";
var request = HttpWebRequest.Create(url);
request.Method = "POST";
request.Headers.Add("Authorization", "Bearer " + AccessToken);
request.ContentType = "application/x-www-form-urlencoded";
NameValueCollection outgoingQueryString = HttpUtility.ParseQueryString(String.Empty);
outgoingQueryString.Add("grant_type", "refresh_token");
outgoingQueryString.Add("refresh_token", refresh_token);
outgoingQueryString.Add("client_id", client_id);
outgoingQueryString.Add("client_secret", client_secret);
outgoingQueryString.Add("scope", "trade profile reports");
outgoingQueryString.Add("redirect_uri", #"https://www.getpostman.com/oauth2/callback");
byte[] postBytes = new ASCIIEncoding().GetBytes(outgoingQueryString.ToString());
Stream postStream = request.GetRequestStream();
postStream.Write(postBytes, 0, postBytes.Length);
postStream.Flush();
postStream.Close();
using (WebResponse response = request.GetResponse())
{
using (StreamReader streamReader = new StreamReader(response.GetResponseStream()))
{
dynamic jsonResponseText = streamReader.ReadToEnd();
}
}
It shows 401(Unauthorized) error.
And when I remove ContentType, it shows 400(Bad Request) error.
If anyone did this, please help me.
guys!
Finally, I found the issue.
The issue was due to my ignorance.
Calm down and have a relax when you get issue.
:)
I created 2 api3 clients and so client_secret was different.
Thank you.
I am developing one application where I need capture basic detail like title, description and images of website based on url provided by user.
But user may be enter www.google.com insted of http://www.google.com but C#.net code failed to retrieve data for "www.google.com" through below code
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(new Uri(url));
request.Method = WebRequestMethods.Http.Get;
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader reader = new StreamReader(response.GetResponseStream());
String responseString = reader.ReadToEnd();
response.Close();
and found error like "Invalid URI: The format of the URI could not be determined."
So do know any technique to found full url based on shorten url.
for ex. google.com or www.google.com
Expected output : http://www.google.com or https://www.google.com
PS : I found online web tool (http://urlex.org/) that will return full url based on shorten url
Thanks in advance.
You can use UriBuilder to create a URL with HTTP as default scheme:
UriBuilder urb = new UriBuilder("www.google.com");
Uri uri = urb.Uri;
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(uri);
request.Method = WebRequestMethods.Http.Get;
string responseString;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
{
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
responseString = reader.ReadToEnd();
}
}
If your URL contains a scheme, it will use that one instead of the default HTTP scheme. I have also used using to release all unmanaged resources.
So do know any technique to found full url based on shorten url.
I may have misunderstood your issue here but can't you just append "http://" if it's missing?
string url = "www.google.com";
if (!url.StartsWith("http"))
url = $"http://{url}";
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.Create(new Uri(url));
request.Method = WebRequestMethods.Http.Get;
using (HttpWebResponse response = (HttpWebResponse)request.GetResponse())
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
String responseString = reader.ReadToEnd();
}
This is basically what a web browser does when you don't specify any protocol.
I'm trying to create a simple C# application to consume the GitHub API, but when I try to execute the following code:
HttpWebRequest request = WebRequest.Create("https://api.github.com/users/AndreStoicov/repos") as HttpWebRequest;
request.Method = "GET";
request.Proxy = null;
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
return reader.ReadToEnd();
}
}
It returns Protocol Violation Section=ResponseStatusLine due to me not being an authorized user.
In other words, I want to use the GitHub API without any user authorization; is there any way to perform that?
GitHub rules state you must specify User-Agent header in request:
request.UserAgent = "appname";
It does not require registered credentials, just application name would be enough.
Can someone help me with following API connection with C#. Never done any API connections before so i am a little unsure how it work. This is for a universal windows application so it will be using c# and XMAL.
Is it possible to do the following PHP API call below using C#:
<?php
$uri = 'http://api.football-data.org/v1/soccerseasons/354/fixtures/?matchday=22';
$reqPrefs['http']['method'] = 'GET';
$reqPrefs['http']['header'] = 'X-Auth-Token: YOUR_TOKEN';
$stream_context = stream_context_create($reqPrefs);
$response = file_get_contents($uri, false, $stream_context);
$fixtures = json_decode($response);
?>
Basically all i need to know is if it is even possible.
Thanks in advance.
It can be something like this (result is as text but you can json too):
HttpWebRequest request =(HttpWebRequest)WebRequest.Create("http://api.football-data.org/v1/soccerseasons/354/fixtures/?matchday=22");
request.Headers.Add("AUTHORIZATION", "Basic YTph");
request.ContentType = "text/html";
request.Method = "GET";
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
StreamReader stream = new StreamReader(response.GetResponseStream());
string ResultAsText = stream.ReadToEnd().ToString();
Here is my favorite example of calling a WEB API: http://www.asp.net/web-api/overview/advanced/calling-a-web-api-from-a-net-client
It shows how to use HttpClient, uses async / await and introduces Formatters.
This may be a pathetically simple problem, but I cannot seem to format the post webrequest/response to get data from the Wikipedia API. I have posted my code below if anyone can help me see my problem.
string pgTitle = txtPageTitle.Text;
Uri address = new Uri("http://en.wikipedia.org/w/api.php");
HttpWebRequest request = WebRequest.Create(address) as HttpWebRequest;
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
string action = "query";
string query = pgTitle;
StringBuilder data = new StringBuilder();
data.Append("action=" + HttpUtility.UrlEncode(action));
data.Append("&query=" + HttpUtility.UrlEncode(query));
byte[] byteData = UTF8Encoding.UTF8.GetBytes(data.ToString());
request.ContentLength = byteData.Length;
using (Stream postStream = request.GetRequestStream())
{
postStream.Write(byteData, 0, byteData.Length);
}
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
// Get the response stream.
StreamReader reader = new StreamReader(response.GetResponseStream());
divWikiData.InnerText = reader.ReadToEnd();
}
You might want to try a GET request first because it's a little simpler (you will only need to POST for wikipedia login). For example, try to simulate this request:
http://en.wikipedia.org/w/api.php?action=query&prop=images&titles=Main%20Page
Here's the code:
HttpWebRequest myRequest =
(HttpWebRequest)WebRequest.Create("http://en.wikipedia.org/w/api.php?action=query&prop=images&titles=Main%20Page");
using (HttpWebResponse response = (HttpWebResponse)myRequest.GetResponse())
{
string ResponseText;
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
ResponseText = reader.ReadToEnd();
}
}
Edit: The other problem he was experiencing on the POST request was, The exception is : The remote server returned an error: (417) Expectation failed. It can be solved by setting:
System.Net.ServicePointManager.Expect100Continue = false;
(This is from: HTTP POST Returns Error: 417 "Expectation Failed.")
I'm currently in the final stages of implementing an C# MediaWiki API which allows the easy scripting of most MediaWiki viewing and editing actions.
The main API is here: http://o2platform.googlecode.com/svn/trunk/O2%20-%20All%20Active%20Projects/O2_XRules_Database/_Rules/APIs/OwaspAPI.cs and here is an example of the API in use:
var wiki = new O2MediaWikiAPI("http://www.o2platform.com/api.php");
wiki.login(userName, password);
var page = "Test"; // "Main_Page";
wiki.editPage(page,"Test content2");
var rawWikiText = wiki.raw(page);
var htmlText = wiki.html(page);
return rawWikiText.line().line() + htmlText;
You seem to be pushing the input data on HTTP POST, but it seems you should use HTTP GET.
From the MediaWiki API docs:
The API takes its input through
parameters in the query string. Every
module (and every action=query
submodule) has its own set of
parameters, which is listed in the
documentation and in action=help, and
can be retrieved through
action=paraminfo.
http://www.mediawiki.org/wiki/API:Data_formats