Java

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.nio.charset.StandardCharsets;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.annotation.JsonProperty;

class Parameters {
    @JsonProperty("ConsoleText")
    public String consoleText;

    public Parameters(String consoleText) {
        this.consoleText = consoleText;
    }
}

class TaskItem {
    @JsonProperty("Sequence")
    public int sequence;

    @JsonProperty("Name")
    public String name;

    @JsonProperty("Action")
    public String action;

    public TaskItem(int sequence, String name, String action) {
        this.sequence = sequence;
        this.name = name;
        this.action = action;
    }
}

class RequestPayload {
    @JsonProperty("Parameters")
    public Parameters parameters;

    @JsonProperty("Tasks")
    public TaskItem[] tasks;

    public RequestPayload(Parameters parameters, TaskItem[] tasks) {
        this.parameters = parameters;
        this.tasks = tasks;
    }
}

public class Main {
    public static void main(String[] args) {
        try {
            HttpClient client = HttpClient.newHttpClient();
            String url = "http://localhost:5000/execute";

            Parameters parameters = new Parameters("hallo word");
            TaskItem[] tasks = { new TaskItem(1, "log", "console") };
            RequestPayload payload = new RequestPayload(parameters, tasks);

            ObjectMapper objectMapper = new ObjectMapper();
            String jsonContent = objectMapper.writeValueAsString(payload);

            HttpRequest request = HttpRequest.newBuilder()
                .uri(new URI(url))
                .header("Content-Type", "application/json")
                .POST(HttpRequest.BodyPublishers.ofString(jsonContent, StandardCharsets.UTF_8))
                .build();

            HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());

            if (response.statusCode() == 200) {
                System.out.println("Response: " + response.body());
            } else {
                System.out.println("Error: " + response.statusCode());
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}