如何获得 Dynamics 365 令牌？

Question

I trying to get Dynamics 365 token but the method for obtain the token is asynchronous and when I try to return the token I obtain a 500 Internal Server Error. Is there another way to get Dynamics 365 token? Or how can I show the token on return of the controller?

My get token method:

 public static async Task<string> AccessTokenGenerator()
    {
        string clientId = "myClientId";
        string clientSecret = "myClientSecret";
        string authority = "https://login.microsoftonline.com/9dfdf489-e992-46ea-9fc7-317dfc206add";
        string resourceUrl = "https://devtreinamento.crm2.dynamics.com"; // Org URL  

        ClientCredential credentials = new ClientCredential(clientId, clientSecret);
        var authContext = new Microsoft.IdentityModel.Clients.ActiveDirectory.AuthenticationContext(authority);
        var result = await authContext.AcquireTokenAsync(resourceUrl, credentials);
        return result.AccessToken;
    }

My show token method:

[Route ("")]
    [HttpGet]
    public  ActionResult showToken()
    {
        var token = getToken.AccessTokenGenerator();

        return Ok(token);
    }

Answer 1

Change your "Get" method to async and return a Task<T> of type T ActionResult , then await your call to AccessTokenGenerator() , in your current code, you are setting a variable equal to an async method without awaiting the async method to complete.:

[Route ("")]
[HttpGet]
public async Task<ActionResult> showToken()
{
    var token = await getToken.AccessTokenGenerator();
    return Ok(token);
}