sorry i am a new comer,i just want to know how we can make HTTP Client in iPhone,like java
we make HTTPClient like
httpclient = new DefaultHttpClient();
if(Settingdb.getLocation() != null && Settingdb.getLocation().length()
httppost = new HttpPost(Settingdb.getLocation());
i need this code in iPhone (objective C )
You can make HTTP request by using URL Loading System
Related
I am working on a gamification project whose goal is to build a WebGL game with Unity and post the final score as a grade on an assignment using the canvas LMS API. I need to know two things: how to authenticate using a bearer token for now (I know how to create the token already and I will need to use auth 2.0 later) and how to post a grade on an assignment using UnityWeb Request or similar. I have tried using restsharp, the vs code recognized it, but Unity did not. Also tried making a connection with node.js, Unity and node.js connected successfully, but the node wrappers I was using did not work.
In the worst cenario I would like to be able to post a comment on the assignment (I would pass the final grade as a string).
This is what I've tried with httpWebRequest:
string api_token = "bearer token here";
//initializing HttpWebRequest object
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("domain here");
IWebProxy theProxy = request.Proxy;
if (theProxy != null)
{
theProxy.Credentials = CredentialCache.DefaultCredentials;
}
CookieContainer cookies = new CookieContainer();
request.UseDefaultCredentials = true;
request.CookieContainer = cookies;
request.ContentType = "application/json";
request.CookieContainer = cookies;
// write the "Authorization" header
request.Headers.Add("Authorization", "Basic " + api_token);
request.Method = "POST";
// get the response
//WebResponse response = request.GetResponse();
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
StreamReader reader = new StreamReader(response.GetResponseStream());
Debug.Log(reader.ReadToEnd());
}
I need the node wrappers to do authentication and the post request.
The node wrappers: c10. I've tried with this one a lot and
node-canvas-api
I can access the api and post using postman.
I found out I can use code snippets on postman to retrieve the request in a certain language. With this, I didn't need the python APIs anymore as I was able to get the code directly. I still don't know why Unity did not recognize restSharp, but python solved my problem.
As it was hard for me to find how to post grades and comments on Canvas lms I will leave the PATH here for anyone who has the same problem:
PUT /api/v1/courses/:course_id/assignments/:assignment_id/submissions/:user_id
the query params are:
comment[text_comment] and submission[posted_grade].
I am migrating from .net core 2.2 to 3.1. I am making an XUnit test method to test my controllers.
I successfully made and tested in .net core 2.2 projects, but after migrating to 3.1 it seems it cant set authorization header to my request so I am getting UnAuthorized from my app.
this is my Code :
[Fact]
public async void InvalidId_UnSuccessFull_GetById()
{
// Arrange
var httpClient = new HttpClient();
var token = await GetAdminAccessToken(); // Sends a login request and fetch a valid token
// httpClient.DefaultRequestHeaders.Add("Authorization",$"Bearer {token}");
httpClient.DefaultRequestHeaders.Authorization=new AuthenticationHeaderValue("Authorization",$"Bearer {token}");
var id = Guid.Empty;
// Act
var response = await httpClient.GetAsync("localhost:5000/Admin/User/{id}");
var message = await ExtractMessage(response);
// Assert
Assert.Contains(PersianErrorMessage.InvalidUserId, message);
Assert.Equal(HttpStatusCode.BadRequest, response.StatusCode);
}
I debugged into httpClient class till the sendAsync method and the HttpRequestMessage request instance does not have an Authorization Header that I set above! What's wrong with my code?
The AuthenticationHeaderValue should be set like this:
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);
Source: https://learn.microsoft.com/en-us/dotnet/api/system.net.http.headers.authenticationheadervalue.-ctor?view=netcore-3.1#System_Net_Http_Headers_AuthenticationHeaderValue__ctor_System_String_
There are a couple of issues that could trip you up here. This can be a frustrating issue, so hopefully, this helps. The HTTP client is more than likely sending the Authorization header. If there is any kind of redirect, the Authorization header does not travel with it. I ran into this issue once and the only problem was my original URL did not have a trailing slash at the end.
What I entered:
https://api.example.com/v3/endpoint
Server endpoint:
https://api.example.com/v3/endpoint/
Step 1, Determine if there is a redirect.
Step 2, Make your URL match the final URI exactly
Clients like curl do this automatically. In .Net 3.1, you will have to make sure your client checks for redirects. A 401 error is actually a good thing--it means you more than likely reached the right endpoint albeit without the authorization token.
You can do this in code, but just run debug and break after you get the response. Examine the RequestURI property of the RequestMessage object of the HttpResponseMessage (response.RequestMessage.RequestURI). Compare this with your initial URL. If they do not match exactly, you've been redirected and the Authorization header was lost along the way.
I am using the new Apache HttpClient 4.2 (not the one from Apache Commons).
I need to open up one HttpClient and make multiple requests to the same server. From the documentation, the httpClient should automatically maintain the cookie, and therefore have the multiple requests fall in the same session. However, on the server side, I am debugging thru and see that
HttpSession session = req.getHttpSession(true);
is returning a new HttpSession Object every time.
my client code is like this.
// 1st time
HttpClient httpClient = new DefaultHttpClient();
req.getSession(true).setAttribute(HTTPCLIENT, httpClient);
HttpGet httpget = new HttpGet(redirectUrl);
ResponseHandler<String> responseHandler = new BasicResponseHandler();
String content = httpClient.execute(httpget, responseHandler);
// subsequent calls
HttpClient httpClient = getHttpClient(req);
HttpGet httpget = new HttpGet(redirectUrl);
ResponseHandler<String> responseHandler = new BasicResponseHandler();
String content = httpClient.execute(httpget, responseHandler);
// supported by the private method
private HttpClient getHttpClient(HttpServletRequest req){
return (HttpClient) req.getSession(true).getAttribute(HTTPCLIENT);
}
did I do anything wrong?
my dumb experiment.
it was because I was mixing up using and by passing the HttpClient on different requests from the same browser (e.g. by passing on .js and .css files). These by passed resources returned a different sessionId to the browser, and subsequently, the browser started using the new sessionId.
I am trying to create new test page from REST api calls in Fitnesse. The page is being created but the contents is not being added.
I am using addChild responder.
here is my code.
DefaultHttpClient client = new DefaultHttpClient();
HttpGet post = new HttpGet("http://localhost:80/TestSuite?responder=addChild&pageName=RestSuite&pageType=Suite&content=valuetosave");
HttpResponse response = client.execute(post);
String str1 = EntityUtils.toString(response.getEntity());
System.out.println(str1);
I searched a lot but couldn't find any examples also.. please help.
Thanks in advance.
After lots of efforts I found that that documentation is wrong for Rest on fitness.org the parameter in the request is not 'content' but 'pageContent'...
Recently I was using RestSharp to consume my Restful Resouce. and expected exchanging data with JSon between server and client. Below is my C# code.
var client = new RestSharp.RestClient();
var request = new RestRequest(sUrl,Method.POST);
request.RequestFormat = DataFormat.Json;
request.Timeout = TIME_OUT_MILLISECONTS ;
request.AddHeader("Content-Type", "application/json");
request.AddBody(new { appID = sAppId, loginName = sUserName, password=sPassword });
var response = client.Execute(request);
string s=response.Content;//It is always XML format.
The result is not what I expected for(Json data format), although I had set the RequestFormat Json and add Http header Content-Type. So I decided to use the .Net Reflector to found out What happened in the RestClient.Execute method. Here is the code of the method.
public RestClient()
{
...
this.AddHandler("application/json", new JsonDeserializer());
this.AddHandler("application/xml", new XmlDeserializer());
this.AddHandler("text/json", new JsonDeserializer());
this.AddHandler("text/x-json", new JsonDeserializer());
this.AddHandler("text/javascript", new JsonDeserializer());
this.AddHandler("text/xml", new XmlDeserializer());
this.AddHandler("*", new XmlDeserializer());
...
}
I have some questions about it:
As the RestClient adds many kinds of Content-Type into the HttpWebRequest. Is it right way to build a Request? And I think Maybe that is the reason why Response.Content always XML.
I don't know why the RestClient needs to build a HttpWebRequest like that. Any meaning to do that?
If we specified both JSon and XMl message format in a Http Request, which one works finally? Is it allowed?
Thanks. Have a good day.
RestSharp will use the correct handler based on the content type of the response. That's what those AddHandlers are doing; its configuring the RestClient to accept certain content types in the response and mapping those types to deserializers. Normally you would want to set an accept header for the json content type which notifies the server to send json in the response.
request.AddHeader("Accept", "application/json")
Of course, this assumes that the server you are hitting is configured to respond with json.