Custom Http Integration in C#

I read this post that was not addressed and am wondering if it is possible to create custom integrations with C#.

If so could you give me some instructions on how go about this process?

Thank you.

Here is the code the original person posted.

private async Task SendResponseToExternalURLAsync()
	using (var client = new HttpClient())

		string url = "http://localhost:8090/api/devices/55f82cdb2868217b/queue";

		var queueItem = new
			confirmed = true,
			data = "68...64",
			fCntDown = 1,
			fPort = 1,
			id = "55f8...68217b",


		var jsonContent = JsonConvert.SerializeObject(new { queueItem });

		client.DefaultRequestHeaders.Add("Authorization", "Bearer ElRdTOs-HvLXbY37clc...");

		client.DefaultRequestHeaders.Accept.Add(new MediaTypeWithQualityHeaderValue("application/json"));

		return await client.PostAsync(url, new StringContent(jsonContent, Encoding.UTF8, "application/json"));