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Created February 7, 2019 12:10
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WeatherBotv4 - WeatherBotv4Bot.cs
// Copyright (c) Microsoft Corporation. All rights reserved.
// Licensed under the MIT License.
using System.Threading;
using System.Threading.Tasks;
using Microsoft.Bot.Builder;
using Microsoft.Bot.Schema;
using System.Linq;
using WeatherBotv4.Helpers;
using WeatherBotv4.Services;
namespace WeatherBotv4
public class WeatherBotv4Bot : IBot
public static readonly string LuisKey = "WeatherBotv4Bot";
private readonly BotService _services;
public WeatherBotv4Bot(BotService services)
_services = services ?? throw new System.ArgumentNullException(nameof(services));
if (!_services.LuisServices.ContainsKey(LuisKey))
throw new System.ArgumentException($"Invalid configuration....");
public async Task OnTurnAsync(ITurnContext turnContext, CancellationToken cancellationToken = default(CancellationToken))
if (turnContext.Activity.Type == ActivityTypes.Message)
var recognizer = await _services.LuisServices[LuisKey].RecognizeAsync(turnContext, cancellationToken);
var topIntent = recognizer?.GetTopScoringIntent();
if (topIntent != null && topIntent.HasValue && topIntent.Value.intent != "None")
var location = LuisParser.GetEntityValue(recognizer);
if (location.ToString() != string.Empty)
var ro = await WeatherService.GetWeather(location);
var weather = $"{} ({ro.main.temp.ToString("N2")} °C)";
var typing = Activity.CreateTypingActivity();
var delay = new Activity { Type = "delay", Value = 5000 };
var activities = new IActivity[] {
MessageFactory.Text($"Weather of {location} is: {weather}"),
MessageFactory.Text("Thanks for using our service!")
await turnContext.SendActivitiesAsync(activities);
await turnContext.SendActivityAsync($"==>Can't understand you, sorry!");
var msg = @"No LUIS intents were found.
This sample is about identifying a city and an intent:
'Find the current weather in a city'
Try typing 'What's the weather in Prague'";
await turnContext.SendActivityAsync(msg);
else if (turnContext.Activity.Type == ActivityTypes.ConversationUpdate)
await SendWelcomeMessageAsync(turnContext, cancellationToken);
await turnContext.SendActivityAsync($"{turnContext.Activity.Type} event detected", cancellationToken: cancellationToken);
private static async Task SendWelcomeMessageAsync(ITurnContext turnContext, CancellationToken cancellationToken)
foreach (var member in turnContext.Activity.MembersAdded)
if (member.Id != turnContext.Activity.Recipient.Id)
await turnContext.SendActivityAsync(
$"Welcome to WeatherBotv4 {member.Name}!",
cancellationToken: cancellationToken);
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