response : unauthorized in Swagger via RestSharp - vb.net

Question

I need to use an API from Swagger that sends email but I am having a problem in authorization I passed the token but still the result is Unauthorized.
I use the code below.
`Dim url = "test123/test.com" (can't include the actual)
Dim apiKey = "12312"
Dim apiPassword = "12312"
Dim client = New RestClient(url)
Dim request = New RestRequest("token", Method.POST)
request.Parameters.Clear()
request.AddParameter("grant_type", "password")
request.AddParameter("username", apiKey)
request.AddParameter("password", apiPassword)
Dim response As IRestResponse = client.Execute(request)
_pristrKey = response.Content
Return JsonConvert.DeserializeObject(response.Content)`
Now I have the Token in _pristrKey
Then I do this for email sending.
`Dim url = "test123/test.com"
Dim client = New RestClient(url)
Dim request = New RestRequest("api/email", Method.POST)
request.Parameters.Clear()
request.AddHeader("accept", "application/json")
request.AddParameter("Authorization", String.Format($"Bearer " +
_pristrKey), ParameterType.HttpHeader)
request.AddHeader("Content-Type", "application/json")
Dim apiInput = New With {Key .bulkId = "123", Key .from =
"test123#gmail.com", Key .subject = "Test", Key .text = "Test123", Key
.to = "test321#gmail.com"}
request.AddParameter("application/json",
JsonConvert.SerializeObject(apiInput), ParameterType.RequestBody)
request.RequestFormat = DataFormat.Json
Dim response As IRestResponse = client.Execute(request)`
Actual Output: response = "StatusCode: Unauthorized, Content-Type: , Content-Length: 0)"

Answer 1

This error happens because your token is invalid check your token if you got it right, also check for extra double quote(") in the token. I have encounter this in vb.net just use:
.Replace("""", "").Trim()