C# app that downloads the call recordings.

ok so i got this put together

using System;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using RingCentral;

namespace Recordings
{
    class Program
    {
        static void Main(string[] args)
        {
            // Display the number of command line arguments.
            Console.WriteLine(args.Length);
        }


        const string RINGCENTRAL_CLIENTID = "0_m0q2SexxxxxxKNQ";
        const string RINGCENTRAL_CLIENTSECRET = "S1xxxxxxxxxZMiFFHzzzzzrb_sWSjUg";
        const bool RINGCENTRAL_PRODUCTION = false;

        const string RINGCENTRAL_USERNAME = "15555555555";
        const string RINGCENTRAL_PASSWORD = "Password123!";
        const string RINGCENTRAL_EXTENSION = "101";

        static private async Task download_call_log_callrecording()
        {
            RestClient rc = new RestClient(RINGCENTRAL_CLIENTID, RINGCENTRAL_CLIENTSECRET, RINGCENTRAL_PRODUCTION);
            await rc.Authorize(RINGCENTRAL_USERNAME, RINGCENTRAL_EXTENSION, RINGCENTRAL_PASSWORD);
            var parameters = new ReadCompanyCallLogParameters();
            parameters.dateFrom = "2021-09-05T00:00:00.000Z";
            parameters.view = "Simple";
            parameters.recordingType = "All";

            var path = "recording_content/";
            System.IO.Directory.CreateDirectory(path);
            long timePerApiCall = 6000;

            var resp = await rc.Restapi().Account().CallLog().List(parameters);
            foreach (var record in resp.records)
            {
                Console.WriteLine("-----");
                Console.WriteLine("Call recording: " + record.recording.contentUri);
                var fileName = path + "call_" + record.recording.id + "_recording";
                var start = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds();
                var result = await rc.Restapi().Account().Recording(record.recording.id).Get();
                if (result.contentType == "audio/mpeg")
                {
                    fileName += ".mp3";
                }
                else // can check if "audio/x-wav"
                {
                    fileName += ".wav";
                }
                var contentUrl = result.contentUri + "?access_token=" + rc.token.access_token;
                WebClient webClient = new WebClient();
                webClient.DownloadFile(contentUrl, fileName);
                Console.WriteLine("Save recording file to the local machine.");
                var end = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds();
                var delay = (end - start) * 1000;
                Console.WriteLine(delay);
                if (delay < timePerApiCall)
                {
                    Thread.Sleep((int)(timePerApiCall - delay));
                }
            }
        }
    }
}

When I run it I get this in the Debug output

'Ring_ABS.exe' (CoreCLR: DefaultDomain): Loaded 'C:Program FilesdotnetsharedMicrosoft.NETCore.App3.1.8System.Private.CoreLib.dll'.

'Ring_ABS.exe' (CoreCLR: clrhost): Loaded 'C:Usersmikeasource eposRing_ABSinDebug etcoreapp3.1Ring_ABS.dll'. Symbols loaded.

'Ring_ABS.exe' (CoreCLR: clrhost): Loaded 'C:Program FilesdotnetsharedMicrosoft.NETCore.App3.1.8System.Runtime.dll'.

'Ring_ABS.exe' (CoreCLR: clrhost): Loaded 'C:Program FilesdotnetsharedMicrosoft.NETCore.App3.1.8System.Console.dll'.

'Ring_ABS.exe' (CoreCLR: clrhost): Loaded 'C:Program FilesdotnetsharedMicrosoft.NETCore.App3.1.8System.Threading.dll'.

'Ring_ABS.exe' (CoreCLR: clrhost): Loaded 'C:Program FilesdotnetsharedMicrosoft.NETCore.App3.1.8System.Runtime.Extensions.dll'.

The program '[36264] Ring_ABS.exe' has exited with code 0 (0x0).

ok it's working great and for anyone that sees this post here is the full code.

using System;
using System.Net;
using System.Threading;
using System.Threading.Tasks;
using RingCentral;

namespace Recordings
{
    class Program
    {
      


        const string RINGCENTRAL_CLIENTID = "0_mdddddddddQ";
        const string RINGCENTRAL_CLIENTSECRET = "S1h7dddddsWSjUg";
        const bool RINGCENTRAL_PRODUCTION = false;

        const string RINGCENTRAL_USERNAME = "15555555555";
        const string RINGCENTRAL_PASSWORD = "PASSWORD321!";
        const string RINGCENTRAL_EXTENSION = "101";

        static RestClient rcsdk;
        static void Main(string[] args)
        {
            
            rcsdk = new RestClient(RINGCENTRAL_CLIENTID, RINGCENTRAL_CLIENTSECRET, RINGCENTRAL_PRODUCTION);
            rcsdk.Authorize(RINGCENTRAL_USERNAME, RINGCENTRAL_EXTENSION, RINGCENTRAL_PASSWORD).Wait();
            download_call_log_callrecording().Wait();
        }
        static private async Task download_call_log_callrecording()
        {
            var parameters = new ReadCompanyCallLogParameters();
            parameters.dateFrom = "2021-07-05T00:00:00.000Z";
            parameters.view = "Simple";
            parameters.recordingType = "All";

            //Makes the file path
            var path = "c:/recording_content/";
            System.IO.Directory.CreateDirectory(path);
            long timePerApiCall = 6000;

            var resp = await rcsdk.Restapi().Account().CallLog().List(parameters);

            foreach (var record in resp.records)
            {
                Console.WriteLine("-----");
                Console.WriteLine("Call recording: " + record.recording.contentUri);
                var fileName = path + "call_" + record.recording.id + "_recording";
                var start = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds();
                var result = await rcsdk.Restapi().Account().Recording(record.recording.id).Get();
                if (result.contentType == "audio/mpeg")
                {
                    fileName += ".mp3";
                }
                else // can check if "audio/x-wav"
                {
                    fileName += ".wav";
                }
                var contentUrl = result.contentUri + "?access_token=" + rcsdk.token.access_token;
                WebClient webClient = new WebClient();
                webClient.DownloadFile(contentUrl, fileName);
                Console.WriteLine("Save recording file to the local machine.");
                var end = new DateTimeOffset(DateTime.UtcNow).ToUnixTimeSeconds();
                var delay = (end - start) * 1000;
                Console.WriteLine(delay);
                if (delay < timePerApiCall)
                {
                    Thread.Sleep((int)(timePerApiCall - delay));
                }
            }
        }
    }
}

How do you handle reading 7000 call logs? Each time you read the call log you will get max 1000 records per page. So with 7000 records, you have yo read 7 times using the next page tokens. You must also take care of the API rate limit (40 calls per 60 secs) of the call log list endpoint. Then when you download the recordings, the rate limit is 10 downloads per 60 secs. Read this article to learn more about API rate limit and how to handle it.

You do need to handle exception and check each call recording record.recording.contentUri is not null.

All in all, my snippet code is a sample and you need to fine tune it for your production code.