FluxClientSimpleExample.cs

using System;
using System.Threading.Tasks;
using InfluxDB.Client.Flux;

namespace Examples
{
    public static class FluxClientSimpleExample
    {
        public static async Task Main()
        {
            Console.WriteLine("Start");

            var options = new FluxConnectionOptions("http://127.0.0.1:8086", TimeSpan.FromSeconds(20));
            using var client = new FluxClient(options);

            var fluxQuery = "from(bucket: \"telegraf\")\n"
                            + " |> filter(fn: (r) => (r[\"_measurement\"] == \"cpu\" AND r[\"_field\"] == \"usage_system\"))"
                            + " |> range(start: -1d)"
                            + " |> sample(n: 5, pos: 1)";

            var tables = await client.QueryAsync(fluxQuery);

            if (tables != null)
            {
                foreach (var fluxTable in tables)
                foreach (var fluxRecord in fluxTable.Records)
                    Console.WriteLine(fluxRecord.GetTime() + ": " + fluxRecord.GetValueByKey("_value"));
            }
        }
    }
}