This snippet demonstrates how to delay the visibility of a message in an Azure Storage Queue

addToQueueStorageWithdelay.cs

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 Microsoft.Azure.Storage.Queue;
using Microsoft.Azure.Storage;
using Microsoft.Azure;

namespace QueueVisibility
{
    public static class addToQueueStorageWithdelay
    {
        [FunctionName("addToQueueStorageWithdelay")]
        public static async Task<IActionResult> Run(
            [HttpTrigger(AuthorizationLevel.Function, "post", Route = null)] HttpRequest req,
            ILogger log)
        {
            log.LogInformation("C# HTTP trigger function processed a request.");

            string name = req.Query["name"];

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

            string conn = Environment.GetEnvironmentVariable("StorageConnectionString");
            // Retrieve storage account from connection string.
            CloudStorageAccount storageAccount = CloudStorageAccount.Parse(conn);

            // Create the queue client.
            CloudQueueClient queueClient = storageAccount.CreateCloudQueueClient();

            // Retrieve a reference to a queue.
            CloudQueue queue = queueClient.GetQueueReference("<name of your queue>");

            // Create the queue if it doesn't already exist.
            queue.CreateIfNotExists();

            // Create a message and add it to the queue.
            CloudQueueMessage message = new CloudQueueMessage(requestBody);
            // The message will be visible in the queue after 3 days
            queue.AddMessage(message, initialVisibilityDelay: TimeSpan.FromDays(3));

            return name != null
                ? (ActionResult)new OkObjectResult($"Hello, {name}")
                : new BadRequestObjectResult("Please pass a name on the query string or in the request body");
        }
    }
}