AspNet core 401 - No SecurityTokenValidator when adding the token

Question

For a Jwt token:

HttpResponseMessage responseMsg
var token = responseMsg.Content?
           .ReadAsStringAsync()
           .GetAwaiter()
           .GetResult();

Used to authorize a post request, like this:

client.BaseAddress = new Uri("https://...");
client.DefaultRequestHeaders.Accept.Clear();
client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));
client.DefaultRequestHeaders.Add("Authorization", $"Bearer {token}");

I'm getting this error:

Bearer was not authenticated. Failure message: No SecurityTokenValidator available for token: "eyJ..."

After a closer look to the request in postman I discovered that the issue are the "" added to the token on the header:

That is why I add the token like this:

client.DefaultRequestHeaders.Add("Authorization", $"Bearer {token.Replace("\"", "")}");

And this works, but it seems "dirty" to me. Is there a better way?

Answer 1

You should deserialize the response object so that you can use it as a string:

HttpResponseMessage responseMsg
var response = responseMsg.Content?
           .ReadAsStringAsync()
           .GetAwaiter()
           .GetResult();
var token = JsonConvert.DeserializeObject<string>(response);
return token;

Now the string is ready to be included in the header as a bearer token.