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C#: How to htttps get request with bearer token in header

Hello everyone my name is Taniguchi.
I've tried retrieving an entity from Dynamics 365 Finance and Operations and i did it on postman but now i having difficulties in asp.net core I was able to get the token but when i try to retrieve the entity the response gives me a html and this html leads me to the Dynamics 365 Finance and Operations Page.
My code:
`
var httpClient = new HttpClient();
httpClient.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", accessToken);
const string environmentsUri = "https://trial-0z4qfj.sandbox.operations.dynamics.com/data/PartyContacts";
var response = httpClient.GetAsync(environmentsUri).Result;
var content = response.Content.ReadAsStringAsync().Result;
what am i doing wrong ? do i need to authenticate again ?

I suspect the Token you receive is not correct/complete.
I remember I faced the similar issue, I would request you to follow this blog post and try to receive Token as shown This shall help you solve your issue.
In addition I would recommend you use Organizaiton service with Webapi/Access Token. It will give you native library usage and you could query crm easily.
Try this blog for Orgservice

Seems like you are only using the parameter accessToken instead of the variable value. Depends on how you declared accessToken ofc. The rest seems fine.
Try:
httpClient.DefaultRequestHeaders.Authorization =
new AuthenticationHeaderValue("Bearer", token.accessToken);

ADFS v4.0 and /userinfo endpoint giving 405

Integrating older ASP.NET server-side application into ADFS for authentication, which means I pretty much had to write everything from scratch. have everything working (/authorize, /token) up until the /userinfo call.
My code, in a nutshell -
HttpClient client = new HttpClient();
var req = new HttpRequestMessage {
RequestUri = new Url("https://<server_ip>/adfs/oauth2/userinfo"),
Method = HttpMethod.Get,
};
req.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token.AccessToken);
req.Headers.UserAgent.Clear();
req.Headers.UserAgent.Add(new ProductInfoHeaderValue("OldApp", "11.3.0"));
var result = await client.SendAsync(req);
The result is a HTTP error 405 - Method Not Allowed. Doing searches online, I see this as a common issue when the trailing "/" is left off the url, but I get the same result with a trailing slash.
After poking around, there are a lot of examples that use newer libraries and such that I can't use, sadly. None mention usage of the /userinfo, and I'm thinking that the issue isn't necessarily in how I'm calling the URL, but configuration of the 'Application Group' in ADFS.

Okay - I found the issue, and will document it here in case others come across the same thing..
While I am not sure why /userinfo is giving a 405 - the URL I was using is wrong, despite it being listed in the Endpoints folder. There shouldn't be any "oauth2" in the URL. The correct code (and URL) is:
var req = new HttpRequestMessage {
RequestUri = new Url("https://<server_ip>/adfs/userinfo"),
Method = HttpMethod.Get,
};
req.Headers.Authorization = new AuthenticationHeaderValue("Bearer", token.AccessToken);
req.Headers.UserAgent.Clear();
req.Headers.UserAgent.Add(new ProductInfoHeaderValue("OldApp", "11.3.0"));
var result = await client.SendAsync(req);
Also something to keep in mind - this has been stated elsewhere, but not as clearly as here, I hope:
The /userinfo will ONLY give you the NameIdentifier ("sub") claim. (As far as I can see.) No matter what scope you pass it. You will get all your information (that should normally be in the /userinfo call) in the "id_token" parameter from you /token call, encoded as JWT.

Personally I was led to do the same thing as you, the only solution was to download the ADAL library (You will find the link below) and debug the code in order to re-produce the same HTTP stream from ADAL.
You can create a new project so that you can integrate ADAL, for debugging or else intercepting the HTTP stream
Link ADAL

How do I send a post request to telegram API from C#?

I have my telegram application with app's api_id and app's api_hash.
I used TLSharp library for implementing my own things. But now I need to use this https://core.telegram.org/method/auth.checkPhone telegram api method, but it's not implemented in TLSharp library!
I don't mind doing it all manually, but I don't know how!
I know how you send post requests in C#, example:
var response = await client.PostAsync("http://www.example.com/index", content);
but in this specific case I don't. Because I don't know:
1) what link should I use for sending post requests? I couldn't find it on the telegram's website.
2) what content should I pass there? Should it be just "(auth.checkPhone "+380666454343")" or maybe the whole "(auth.checkPhone "+380666454343")=(auth.checkedPhonephone_registered:(boolFalse)phone_invited:(boolFalse))" ?
So, How do I sent this post request to the telegram api? (NOT telegram bot api!)

Try to use System.Net.Http like in this example (auth request to the server):
var user = new { login = "your login", password = "your pass" };
string json = JsonConvert.SerializeObject(user);
HttpContent content = new StringContent(json, Encoding.UTF8, "application/json");
HttpClient client = new HttpClient();
HttpRequestMessage request = new HttpRequestMessage();
request.RequestUri = new Uri("server route link"); // can be like https://a100.technovik.ru:1000/api/auth/authenticate
request.Method = HttpMethod.Post;
request.Content = content;
HttpResponseMessage response = await client.SendAsync(request);
responseText.Text = await response.Content.ReadAsStringAsync();

I think based on a brief look, that it would be more along the lines of your second example, e.g.:
var phonenumber = "0123456789";
var content =
$#"(auth.checkPhone ""{phonenumber}"")"+
"=(auth.checkedPhone phone_registered: (boolFalse) phone_invited:(boolFalse))";
var result = DoHttpPost("http://some.example.com/api/etc", content);
(note: I've not listed the actual mechanics of an HTTP Request here, as that is covered in plenty of detail elsewhere - not least in the other current answer supplied to you; DoHttpPost() is not a real method and exists here only as a placeholder for this process)
And since the payload of this appears to indicate the exact function and parameters required, that you'd just send it to the base api endpoint you use for everything, but I can't say for sure...
I do note they do appear to have links to source code for various apps on the site though, so perhaps you'd be better off looking there?

HTTP Request with Oauth2 to Google App Script Web App

List item
I have created a Google App Script REST - Application (starting with "script.google.com/"), that works with HTTP-requests.
The application works fine when it is available to 'everyone, even anonymous' but when I set it available to my domain only [EDIT:] OR "only myself" from the publish/deploy as WebApp[/EDIT], I can only access the web app with browser and signing in but not with http request.
I have tried requesting an authorization token with both Google OAuth Playground and an android application based on a Xamarin Auth Tutorial.
Both methods have resulted me a working authorization token that I can copy+paste to an other platform an confirm it is working with a request to https://wwww.googlapis.com/plus/v1/people/me.
I can access the Web app with browser and signing in. Now when I call my script with http request I get the following result:
"<HTML> <HEAD> <TITLE>Unauthorized</TITLE> </HEAD> <BODY BGCOLOR="#FFFFFF" TEXT="#000000"> <H1>Unauthorized</H1> <H2>Error 401</H2> </BODY> </HTML>"
I have tried to call the Web App with another App Script:
var headers = {
"authorization": "Bearer [access_token]",
};
var params = {
method:"GET",
contentType:"application/json",
muteHttpExceptions:true,
headers:headers,
};
var url = "https://script.google.com/[rest_of_the_script_url]";
var response = UrlFetchApp.fetch(url, params);
Also I have tried calling the Web App with C# OAuth2Request (Taken from the Xamarin tutorial):
var url = "https://script.google.com/[rest_of_the_script_url]";
var request = new OAuth2Request("GET", new Uri(url), null, account );
Also I have tried C# HttpWebRequest:
string accessToken = "Bearer [access_token]";
string url = "[https://script.google.com/[rest_of_the_script_url]";
HttpWebRequest request = (HttpWebRequest)HttpWebRequest.create(url);
request.Method = "GET";
request.ContentType = "application/json";
request.Headers.Add("Authorization", accessToken);
var response = request.getResponse();
All previous methods have the same result: "(401) Unauthorized".
For scopes I have set:
https://www.googleapis.com/auth/plus.me
https://www.googleapis.com/auth/userinfo.email
My WebApp does not require any scopes according to it's properties.
[EDIT:] Also to make sure it does not I did set a doGet() method as simple as possible:
function doGet(e)
{
return ContentService.CreateTextOutput("success");
}
This question has been asked before, but some have found the solution and some have not. Also I did not success with the answers either.
I think my first attempt covers this one.
I tried to translate the Java answer to C#
Ok, thanks for reading down here, wish some one can help me out with this as I'm running out of ideas (and time, eventually).
EDIT:
Though the issue has resolved and turned out to be a scope-issue I am answering the questions in the comments below, in case this question might be of any help to anyone in the future.

I was able to get this to work with an access token authorized with the https://www.googleapis.com/auth/drive.file scope in the Google OAuth Playground.
That doesn't seem quite right in my opinion, but it's the least permissive scope I got to work.

GET call to a Google API responds with "Unauthorized"

UPDATE: Figured this out. I DID need to add the authorization header as answered below but I also believe the issue for my particular use case is that the access token (which I verified through Postman) required more scopes to authenticate me fully, which makes sense since this API contains surveys that I am trying to access, which are also linked to a Google account. Once I added the extra scopes needed to access the surveys to the token request along with the authorization header code below I was able to connect successfully.
More info on adding scopes to C# code can be found here: http://www.oauthforaspnet.com/providers/google/
Hope this helps anyone running into similar issues. Thanks all!
I am trying to make a GET call to a Google API but it keeps responding with "Unauthorized" while I am logged in to Gmail. I've already implemented Google+ Sign-In in StartUp.Auth.cs and even saved the access token for later use.
So how do I get the HttpClient to authorize me?
I have an access token available but I do not know how to pass it in properly. I've seen examples with usernames and passwords, but I should not need to pass those parameters if I already have an access token? If anything, I should be able to have the user redirected to a login page instead if needed when I log out before running the solution.
What I am expecting when the project is run, is the result of the GET call to come back in the form of json but it always says I'm "Unauthorized" and I am probably missing 1 line of code somewhere...
Here is the code I am using:
using (HttpClient client = new HttpClient())
{
string _url = "https://www.googleapis.com/consumersurveys/v2/surveys?key={MY_API_KEY}";
client.BaseAddress = new Uri(_url);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
using (HttpResponseMessage response = client.GetAsync(_url).Result)
{
if (response.IsSuccessStatusCode)
{
using (HttpContent content = response.Content)
{
var Content = content.ReadAsStringAsync();
ViewBag.GoogleResponse = Content.ToString();
}
}
else
{
// THIS IS ALWAYS UNAUTHORIZED!
ViewBag.GoogleResponse = response.StatusCode + " - " + response.ReasonPhrase;
}
}
}
Please help with ideas or suggestions. Thanks!

You need to pass the auth token in an Authorization Header:
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", token);

Have you ever gotten an response for this api/survey? If you were unable to get a response from the API by hitting it with Postman, you may have issues in the way you are targeting the API. The error being returned there seems like you weren't including the token in your request header. Did you click the Authorization tab below the request URL to add the OAuth token to your header? (Keep in mind that the {} characters need to be URL encoded)
Also, when you are referencing MY_API_KEY, is that analagous to your surveyId?
I don't have a lot of experience here, but I have a couple of suggestions :
1) I agree with Pedro, you definitely need to include the Authorization Header in your request.
2) If your MY_API_KEY is in fact the survey ID, you may be providing an incorrect URL (GoogleAPIs documentation indicates that it should be < http://www.googleapis.com/consumer-surveys/v2/surveys/surveyId >
Recommendation (after moving your API key to a string var named MY_API_KEY) :
string _url = "https://www.googleapis.com/consumersurveys/v2/surveys/";
client.BaseAddress = new Uri(_url);
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue("Bearer", ViewBag.GoogleAccessToken);
using (HttpResponseMessage response = client.GetAsync(MY_API_KEY).Result)
{
if (response.IsSuccessStatusCode)
{
using (HttpContent content = response.Content)
{
var Content = content.ReadAsStringAsync();
ViewBag.GoogleResponse = Content.ToString();
}
}
Reference:
https://developers.google.com/consumer-surveys/v2/reference/
http://www.asp.net/web-api/overview/advanced/calling-a-web-api-from-a-net-client