PublishEvent.cs

/*
Sample Code is provided for the purpose of illustration only and is not intended to be used in a production environment.
THIS SAMPLE CODE AND ANY RELATED INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, 
INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR PURPOSE.
We grant You a nonexclusive, royalty-free right to use and modify the Sample Code and to reproduce and distribute the object code form of the Sample Code, provided that. 
You agree: 
	(i) to not use Our name, logo, or trademarks to market Your software product in which the Sample Code is embedded;
    (ii) to include a valid copyright notice on Your software product in which the Sample Code is embedded; and
	(iii) to indemnify, hold harmless, and defend Us and Our suppliers from and against any claims or lawsuits, including attorneys’ fees, that arise or result from the use or distribution of the Sample Code
**/

// Copyright © Microsoft Corporation.  All Rights Reserved.
// This code released under the terms of the 
// Microsoft Public License (MS-PL, http://opensource.org/licenses/ms-pl.html.)

using System;
using System.IO;
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Azure.WebJobs;
using Microsoft.Azure.WebJobs.Extensions.Http;
using Microsoft.AspNetCore.Http;
using Microsoft.Extensions.Logging;
using Newtonsoft.Json;
using StackExchange.Redis;

namespace disclosure
{
    public static class PublishEvent
    {
        [FunctionName("PublishEvent")]
        public static async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req,
            ILogger log)
        {
            log.LogInformation("PublishEvent function processed a request.");
            
            Lazy<ConnectionMultiplexer> lazyConnection = new Lazy<ConnectionMultiplexer>(() =>
            {
                string cacheConnection = Environment.GetEnvironmentVariable("REDIS_CONN");
                return ConnectionMultiplexer.Connect(cacheConnection);
            });

            // string connectionString = Environment.GetEnvironmentVariable("REDIS_CONN");
            // ConnectionMultiplexer redis = ConnectionMultiplexer.Connect(connectionString);
            IDatabase cache = lazyConnection.Value.GetDatabase();

            string defaultTTL = Environment.GetEnvironmentVariable("DEFAULT_TTL");
            int DefTTL = int.Parse(defaultTTL);

            string requestBody = await new StreamReader(req.Body).ReadToEndAsync();
            dynamic data = JsonConvert.DeserializeObject(requestBody);
            string alertMessage = data?.alertMessage;
            string sttl = data?.ttl;

            string xml = data?.xml;
            
            string revisedAlert = alertMessage + " with xml: " + xml;

            int ttl = (string.IsNullOrEmpty(sttl))? DefTTL: int.Parse(sttl);
            string uid = Guid.NewGuid().ToString();
            TimeSpan t = new TimeSpan(0,0,ttl);
            cache.StringSet(uid,revisedAlert,t);
            lazyConnection.Value.Dispose();
            return new OkObjectResult("published");
        }
    }
}