DialogFlow(api.ai)向けのシンプルなwebhook

run.csx

#r "Newtonsoft.Json"

using System.Net;
using System.Net.Http.Formatting;
using System.Text;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

public static async Task<HttpResponseMessage> Run(HttpRequestMessage req, TraceWriter log)
{
    log.Info("C# HTTP trigger function processed a request.");

    // 入力データ
    dynamic data = await req.Content.ReadAsAsync<object>();

    // 返却データ
    var responseModel = new ResponseModel()
    {
        Speech = "大吉だよ！"
    };

    // シリアライズ化してDialogflowサーバに返す
    string json = JsonConvert.SerializeObject(responseModel);
    var res = req.CreateResponse(HttpStatusCode.OK);
    res.Content = new StringContent(json, Encoding.UTF8, "application/json");
    return res;

}

[JsonObject("response")]
public class ResponseModel
{
    [JsonProperty("speech")]
    public string Speech { get; set; }
}