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This Java Code example uses Apache HTTP Client and GSON for handling REST calls and JSON serialization. This also includes code for fetching an access token.

Copytoclipboardcode

language	java
title	Java
collapse	true

package rest.code.examples;
import java.util.Random;
import org.apache.hc.client5.http.fluent.Content;
import org.apache.hc.client5.http.fluent.Request;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import com.google.gson.JsonParser;
/**
 * Request an access token from the Yellowfin refresh-tokens REST end-point
 */
public class GetLoginToken {
    public static void main(String[] args) throws Exception {

        String host = "http://localhost:8080/yellowfinHead";
        String restUsername = "admin@yellowfin.com.au";

String restPassword =


        String restPassword = "test";

        Content c = Request.post(host + "/api/refresh-tokens")
                .addHeader("Authorization", "YELLOWFIN ts=" + System.currentTimeMillis() + " , nonce=" + new Random().nextLong())
                .addHeader("Accept", "application/vnd.yellowfin.api-v1+json")


                .addHeader("Content-Type", "application/json")
                .bodyString("{ \"userName\": \""+ restUsername + "\",\"password\": \""+ restPassword + "\"}", null)
                .execute().returnContent();

        JsonObject jsonObject = new JsonParser().parse(c.asString()).getAsJsonObject();
        JsonElement accessToken = jsonObject.getAsJsonObject("_embedded").getAsJsonObject("accessToken").get("securityToken");

        if (accessToken!=null) {
            System.out.println("Access Token: " + accessToken);
        } else {
            System.out.println("Token not retrieved");
        }

    }
}

Code Block

language	c#
title	C#
collapse	true

namespace YellowfinAPIExamples;
using System;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Threading.Tasks;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

class GetLoginToken
{
    static async Task Main(string[] args)
    {
        string host = "http://localhost:8080/yellowfinHead";
        string restUsername = "admin@yellowfin.com.au";
        string restPassword = "test";

        using (var client = new HttpClient())
        {
            // Generate nonce
            long nonce = new Random().NextInt64();
            
            // Create HTTP request
            var request = new HttpRequestMessage(HttpMethod.Post, host + "/api/refresh-tokens");
            request.Headers.Add("Authorization", "YELLOWFIN ts=" + DateTimeOffset.UtcNow.ToUnixTimeMilliseconds() + ", nonce=" + nonce);
            request.Headers.Add("Accept", "application/vnd.yellowfin.api-v1+json");
            request.Content = new StringContent(
                JsonConvert.SerializeObject(new { userName = restUsername, password = restPassword }),
                MediaTypeHeaderValue.Parse("application/json")
            );

            // Send request and get response
            HttpResponseMessage response = await client.SendAsync(request);
            string responseContent = await response.Content.ReadAsStringAsync();

            // Parse JSON response
            JObject jsonObject = JsonConvert.DeserializeObject<JObject>(responseContent);
            string accessToken = jsonObject["_embedded"]["accessToken"]["securityToken"].ToString();

            if (!string.IsNullOrEmpty(accessToken))
            {
                Console.WriteLine("Access Token: " + accessToken);
            }
            else
            {
                Console.WriteLine("Token not retrieved");
            }
        }
    }
}

...

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