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Microsoft.Azure.CognitiveServices.Language.SpellCheck NuGet not working with Bing Search API (unauthorized)

I'm using .net-core3.1 with Microsoft.Azure.CognitiveServices.Language.SpellCheck NuGet package. I've read through entire documentation around Bing/cognitive API but I still find it very confusing as there are multiple APIs doing the same thing.
I got the API key from Microsoft.BingSearch on portal.azure.com and I'm using the free subscription. My subscription should however be valid as I am already using their LUIS without problems. Azure links to https://learn.microsoft.com/en-us/bing/search-apis/bing-spell-check/quickstarts/rest/python for quick start but this does not work for me ("https://api.bing.microsoft.com/v7.0/SpellCheck" url gives me "NotFound" using the code below with my key).
code sample:
var x = new SpellCheckClient(new ApiKeyServiceClientCredentials("<API_KEY>"));
// endpoints I tried:
// x.Endpoint = "https://westeurope.api.bing.microsoft.com/v7.0/spellcheck";
// x.Endpoint = "https://cognitiveservices.azure.com/bing/v7.0";
// x.Endpoint = "https://api.bing.microsoft.com"; -- Not found
// x.Endpoint = "https://cognitiveservices.azure.com"; -- The requested name is valid, but no data of the requested type was found.
var y = await x.SpellCheckerWithHttpMessagesAsync("gona");
Using default endpoint gives me Unauthorized error code.
Anyone has any idea on how to use this API?

You are right, the endpoint seems to be wrong. As you can see in the documentation here, regarding this value:
Supported Cognitive Services endpoints (protocol and hostname, for
example: "https://westus.api.cognitive.microsoft.com",
"https://api.cognitive.microsoft.com").
So if you are using West Europe, it should be "https://westus.api.cognitive.microsoft.com"
You can also check your API key by directly testing the console here: https://westeurope.dev.cognitive.microsoft.com/docs/services/5f7d486e04d2430193e1ca8f760cd7ed/operations/57855119bca1df1c647bc358
Choose your resource region (the one selected during key creation on Azure portal)
Set your key value in "Ocp-Apim-Subscription-Key" field
Edit the "text" value in the query parameters
Run the request

Skybrud social Log in via Facebook?

I'm usinng skybrud social to allow users to log into my site via Facebook, but am having a problem.
For some reason, the response never contains anything other than the Name and Id of the user... everything else is null.
var url = client.GetAuthorizationUrl(state, "public_profile", "email");
var service = FacebookService.CreateFromAccessToken(userAccessToken);
FacebookMeResponse user = service.Methods.Me();
Has anyone experienced this before? What could be the problem?

Facebook has multiple versions of their Graph API. In the most recent version (2.4), less fields are returned by default, and you instead have to tell the API to return the fields that you need. What version of the API you're using depends on the time you registered your app with Facebook.
Based on your code, it seems that you're using an older version of Skybrud.Social. If you update to the most recent version (0.9.4.1), you can do something like this:
// Declare the options for the call to the API
FacebookGetUserOptions options = new FacebookGetUserOptions("me") {
Fields = "name,email,gender"
};
// Make the call to the API
FacebookUserResponse response = service.Users.GetUser(options);
Hope this answers your questions ;)

Support Token Based Authentication in Swagger Documentation for Web API

I am trying out swagger(SwashBuckle) for generating web api documentation. I have successfully generated the documentation using Web API documentation using swagger but I am not able to successfully send API requests, as we have token based authentication (custom header for authentication purpose) for few of the methods.
I tried to find out sample code/resources for the same but did not have much luck. Please let me know if someone has implemented/came across similar thing in their application.

I had the same problem some time ago, and asked in the blog http://bitoftech.net/2014/08/25/asp-net-web-api-documentation-using-swagger/ for a solution.
This was the answer that worked for me:
1.Add new file named “SwaggerExtensions”, then added new JS file named “onComplete.js”, you have to change the build action for this file to “Embedded Resource”.
2.Inside the file “onComplete.js” paste the following code:
$('#input_apiKey').change(function () {
var key = $('#input_apiKey')[0].value;
if (key && key.trim() != "") {
key = "Bearer " + key;
window.authorizations.add("key", new ApiKeyAuthorization("Authorization", key, "header"));
}
});
3.Open file “SwaggerConfig.cs” and inside the register method paste the code below:
SwaggerUiConfig.Customize(c =>
{
c.SupportHeaderParams = true;
c.InjectJavaScript(typeof(SwaggerConfig).Assembly, "AngularJSAuthentication.API.SwaggerExtensions.onComplete.js");
});
Note that you need to change the full assembly name to match your assembly name.
I believe thats it, once you run the UI you will notice that this file has been downloaded and it will set the authorization header correctly.

You need to set up API Key authorisation. The "Describing Security/Authorization Schemes" in the README at https://github.com/domaindrivendev/Swashbuckle has details on this but in short you need to do something like the following in your call to httpConfiguration.EnableSwagger()
c.ApiKey("apiKey")
.Description("API Key Authentication")
.Name("apiKey")
.In("header");
You then need to create a custom attribute derived from IDocumentFilter and apply it to the appropriate methods in your controllers. Lets say you call this ApiKeyFilter. You then need to register this with Swagger by adding the following in EnableSwagger()
c.OperationFilter<ApiKeyFilter>();
I'm not aware of sample code for an ApiKey attribute but I've used https://github.com/domaindrivendev/Swashbuckle/blob/master/Swashbuckle.Dummy.Core/SwaggerExtensions/AssignOAuth2SecurityRequirements.cs before for OAuth2, you should be able to adapt that.

How do I get Google Calendar feed from user's access token?

Using OAuth I do get access token from Google. The sample that comes with Google and even this one:
http://code.google.com/p/google-api-dotnet-client/source/browse/Tasks.SimpleOAuth2/Program.cs?repo=samples
show how to use Tasks API. However, I want to use Calendar API. I want to get access to user's calendar. Can anybody tell me how do I do that?

Take a look at the samples:
Getting Started with the .NET Client Library
On the right side of the page linked above there is a screen shot showing the sample projects contained in the Google Data API solution. They proofed to be very helpful (I used them to start my own Google Calendar application).
I recommend keeping both your own solution and the sample solution open. This way you can switch between the examples and your own implementation.
I also recommend to use the NuGet packages:
Google.GData.AccessControl
Google.GData.Calendar
Google.GData.Client
Google.GData.Extensions
and more ...
This way you easily stay up to date.
Sample to get the users calendars:
public void LoadCalendars()
{
// Prepare service
CalendarService service = new CalendarService("Your app name");
service.setUserCredentials("username", "password");
CalendarQuery query = new CalendarQuery();
query.Uri = new Uri("https://www.google.com/calendar/feeds/default/allcalendars/full");
CalendarFeed calendarFeed = (CalendarFeed)service.Query(query);
Console.WriteLine("Your calendars:\n");
foreach(CalendarEntry entry in calendarFeed.Entries)
{
Console.WriteLine(entry.Title.Text + "\n");
}
}

Simple C# Evernote API OAuth example or guide?

Anybody know where I can find a simple example C# code example? Apparently really tough to find.
I'm just starting out, got my Developer key.
Initial (really noob question/presumption) - -Can (should/must) my solution be a web service client? No new libraries I need to install in .Net right?
Basically, as a test, I want to be able to securely present a single note from a private notebook in html similar to what the Everfort export in html looks like on a outside WebSite.
Many Thanks in Advance!

You should start by downloading our API ZIP from http://www.evernote.com/about/developer/api/. You'll find C# client sample code in /sample/csharp. This sample code demonstrates using the Evernote API from a desktop application that authenticates using username and password.

I am not sure if you ever got this working, but I was playing around with Evernote, OpenAuth and C# this morning and managed to get it all working. I have put together a blog post / library explaining the experience and outlining how to do it with MVC here - http://www.shaunmccarthy.com/evernote-oauth-csharp/ - it uses the AsyncOAuth library: https://github.com/neuecc/AsyncOAuth
I wrote a wrapper around AsyncOAuth that you might find useful here: https://github.com/shaunmccarthy/AsyncOAuth.Evernote.Simple
One prickly thing to be aware of - the Evernote Endpoints (/oauth and /OAuth.action) are case sensitive
// Download the library from https://github.com/shaunmccarthy/AsyncOAuth.Evernote.Simple
// Configure the Authorizer with the URL of the Evernote service,
// your key, and your secret.
var EvernoteAuthorizer = new EvernoteAuthorizer(
"https://sandbox.evernote.com",
"slyrp-1234", // Not my real id / secret :)
"7acafe123456badb123");
// First of all, get a request token from Evernote - this causes a
// webrequest from your server to Evernote.
// The callBackUrl is the URL you want the user to return to once
// they validate the app
var requestToken = EvernoteAuthorizer.GetRequestToken(callBackUrl);
// Persist this token, as we are going to redirect the user to
// Evernote to Authorize this app
Session["RequestToken"] = requestToken;
// Generate the Evernote URL that we will redirect the user to in
// order to
var callForwardUrl = EvernoteAuthorizer.BuildAuthorizeUrl(requestToken);
// Redirect the user (e.g. MVC)
return Redirect(callForwardUrl);
// ... Once the user authroizes the app, they get redirected to callBackUrl
// where we parse the request parameter oauth_validator and finally get
// our credentials
// null = they didn't authorize us
var credentials = EvernoteAuthorizer.ParseAccessToken(
Request.QueryString["oauth_verifier"],
Session["RequestToken"] as RequestToken);
// Example of how to use the credential with Evernote SDK
var noteStoreUrl = EvernoteCredentials.NotebookUrl;
var noteStoreTransport = new THttpClient(new Uri(noteStoreUrl));
var noteStoreProtocol = new TBinaryProtocol(noteStoreTransport);
var noteStore = new NoteStore.Client(noteStoreProtocol);
List<Notebook> notebooks = client.listNotebooks(EvernoteCredentials.AuthToken);

http://weblogs.asp.net/psteele/archive/2010/08/06/edamlibrary-evernote-library-for-c.aspx might help. As the author states it just bundles some and fixes some. Haven't tried it myself but thought I'd mention for a possibly easier way to get started. Possibly.

This might help too...found it using the Way Back Machine since the original blog site was offline.
https://www.evernote.com/pub/bluecockatoo/Evernote_API#b=bb2451c9-b5ff-49bb-9686-2144d984c6ba&n=c30bc4eb-cca4-4a36-ad44-1e255eeb26dd
The original blog post: http://web.archive.org/web/20090203134615/http://macrolinz.com/macrolinz/index.php/2008/12/
Scroll down and find the post from December 26 - "Get it while it's hot..."