Dialogflow .NET core, C# - detect intent not working - asp.net-core

Question

I want to invoke DetectIntent programatically.
I am using Google.Cloud.Dialogflow.V2 - Client libraries.
using Google.Cloud.Dialogflow.V2;
var query = new QueryInput
{
Text = new TextInput
{
Text = text,
LanguageCode = "en-us"
}
};
var sessionId = "1234567890";
var agent = "myAgentName";
var creds = GoogleCredential.FromFile("JSONFileName");
Channel channel = new Channel(
SessionsClient.DefaultEndpoint.Host, SessionsClient.DefaultEndpoint.Port, creds.ToChannelCredentials());
var client = SessionsClient.Create(channel);
DetectIntentRequest request = new DetectIntentRequest
{
SessionAsSessionName = new SessionName("smartresort-facebook-bot-fgvjh", "1111"),
QueryInput = query,
};
DetectIntentResponse response = client.DetectIntent(request);
With above code I am getting error as below
I am already using same JSON file in node js code and it is working fine. So in nodejs detect intent code is working fine. I am trying to do the same in .NET core.
After this I have tried another code snippet.
var client = SessionsClient.Create();
var response = client.DetectIntent(
session: new SessionName("smartresort-facebook-bot-fgvjh", "1234567890"),
queryInput: new QueryInput()
{
Text = new TextInput()
{
Text = text,
LanguageCode = "en-us"
}
}
);
I am not trying to write fulfillment which would be called after the intent is detected. I am trying to write the code before intent is detected. So I want to give a call to detect intent and then process the response based on which intent is detected.

Answer 1

Check my answer here, It is an example on how to integrate Dialogflow with .Net Core based on a working sample. If you still have more questions let me know and I will be happy to help!