How to make azure webjob run continuously and call the public static function without automatic trigger

These steps will get you to what you want:

1. Change your method to async
2. await the sleep
3. use host.CallAsync() instead of host.Call()

I converted your code to reflect the steps below.

static void Main(){    var host = new JobHost();    host.CallAsync(typeof(Functions).GetMethod("ProcessMethod"));    // The following code ensures that the WebJob will be running continuously    host.RunAndBlock();}[NoAutomaticTriggerAttribute]public static async Task ProcessMethod(TextWriter log){    while (true)    {        try        {            log.WriteLine("There are {0} pending requests", pendings.Count);        }        catch (Exception ex)        {            log.WriteLine("Error occurred in processing pending altapay requests. Error : {0}", ex.Message);        }        await Task.Delay(TimeSpan.FromMinutes(3));    }}

Use the Microsoft.Azure.WebJobs.Extensions.Timers, see https://github.com/Azure/azure-webjobs-sdk-extensions/blob/master/src/ExtensionsSample/Samples/TimerSamples.cs to create a trigger that uses a TimeSpan or Crontab instruction to fire the method.

Add Microsoft.Azure.WebJobs.Extensions.Timers from NuGet to your project.

public static void ProcessMethod(TextWriter log)

becomes

public static void ProcessMethod([TimerTrigger("00:05:00",RunOnStartup = true)] TimerInfo timerInfo, TextWriter log) 

for five minute triggers (using TimeSpan string)

You will need ensure your Program.cs Main sets up the config to use timers as follows:

static void Main()    {        JobHostConfiguration config = new JobHostConfiguration();        config.UseTimers();        var host = new JobHost(config);        // The following code ensures that the WebJob will be running continuously        host.RunAndBlock();    }