OptOutFetcher/Program.cs

using RestSharp;
using System.Text.Json.Nodes;
using System.Text.Json;
using System.Net;
using RestSharp.Authenticators;

/*
	Campaign Monitor API reference: https://www.campaignmonitor.com/api/v3-3/getting-started/
	Dobbs API key/client ID available from Josh in \\KM202401\c$\Users\joshdeck.KEYMTV\Documents\Misc\OptOutFetcher
 */

internal class Program
{
	static void Main(string[] args)
	{
		Console.Write("Date to start at (leave blank for all entries): ");

		// Add to list testing
		//var data = AddNewSubscribers("");
		//Console.WriteLine(data);

		// Unsubscribe testing
		//UnsubscribeUser("");

		// Opt Out Testing
		string date = Console.ReadLine();
		var data = GetOptOuts(date);

		// Output the data; TODO replace with writing to a service or something
		Console.WriteLine(data);
	}



	private static RestClient InitializeAndGetClient()
	{
		var cookieJar = new CookieContainer();
		var options = new RestClientOptions("https://api.createsend.com")
		{
			Authenticator = new HttpBasicAuthenticator("7cb8625ed34fbc298521f66b9e491ec3df53859a892c92d3", "x")
		};
		return new RestClient(options);
	}



	private static JsonNode? GetOptOuts(string fromDate)
	{
		var client = InitializeAndGetClient();
		var request = new RestRequest();
		if (fromDate != "")
			request = new RestRequest("api/v3.3/lists/3bb5109cdf3265eac26b3fa34ffae379/unsubscribed.json?date=" + fromDate);
		else
			request = new RestRequest("api/v3.3/lists/3bb5109cdf3265eac26b3fa34ffae379/unsubscribed.json");

		var response = client.ExecuteGet(request);

		return JsonSerializer.Deserialize<JsonNode>(response.Content!)!;
	}



	private static JsonNode? AddNewSubscribers(string fileName)
	{
		// TODO: for testing we just use a dummy list, but once we actually merge the two lists we are going to want to read from file/service
		string add_request_params = "{ \"EmailAddress\": \"joshdeck@keymotive.net\", \"Name\": \"Joshua Deck\",\"MobileNumber\":\"+8884227390\",\"CustomFields\": [ ], \"Resubscribe\": true,\"RestartSubscriptionBasedAutoresponders\": true, \"ConsentToTrack\": \"No\", \"ConsentToSendSms\":\"No\"}";
		

		var client = InitializeAndGetClient();

		// This is only adding one. To add multiple, format body as: https://www.campaignmonitor.com/api/v3-3/subscribers/#importing-many-subscribers
		// and POST this url: https://api.createsend.com/api/v3.3/subscribers/3bb5109cdf3265eac26b3fa34ffae379/import.json
		var request = new RestRequest("api/v3.3/subscribers/3bb5109cdf3265eac26b3fa34ffae379.json");

		request.AddBody(add_request_params);
		var response = client.ExecutePost(request);

		return JsonSerializer.Deserialize<JsonNode>(response.Content!)!;
	}



	private static void UnsubscribeUser(string fileName)
	{
		// TODO: change this to a file
		string unsub_request_params = "{ \"EmailAddress\": \"joshdeck@keymotive.net\" }";

		var client = InitializeAndGetClient();
		var request = new RestRequest("api/v3.3/subscribers/3bb5109cdf3265eac26b3fa34ffae379/unsubscribe.json");
		request.AddBody(unsub_request_params);
		var response = client.ExecutePost(request);

		Console.WriteLine(response.Content + "Done unsubscribing");
    }
}