C# Tone Checker

This example uses the HTTP and JSON libraries included with modern .NET.

using System.Net.Http.Headers;
using System.Net.Http.Json;
using System.Text.Json;

var apiKey = Environment.GetEnvironmentVariable("SAPLING_API_KEY")
    ?? throw new InvalidOperationException("Set SAPLING_API_KEY first.");

using var client = new HttpClient();
client.DefaultRequestHeaders.Authorization =
    new AuthenticationHeaderValue("Bearer", apiKey);

var response = await client.PostAsJsonAsync(
    "https://api.sapling.ai/api/v1/tone",
    new { text = "Really stoked about this! Will it be ready by next week?" });

response.EnsureSuccessStatusCode();
var result = await response.Content.ReadFromJsonAsync<JsonElement>();
Console.WriteLine(JsonSerializer.Serialize(result, new JsonSerializerOptions {
    WriteIndented = true
}));