Java SDK

Java standard-library client with four API methods, request signing, callback verification and a read-only query example.

Highlights

Includes createPayinOrder, getPayinOrder, createExclusiveBinding, and createPayoutOrder.
Success returns the raw business JSON. Handle ordinary JSON errors and HTTP denials with empty bodies separately.
Verify callbacks using the original order API Key and raw request body bytes.

Install

cd uugate-java-sdk
javac -encoding UTF-8 -d build src/uugate/UUGateClient.java examples/Example.java
java -cp build Example

Quick Example

import uugate.UUGateClient;
import java.util.Map;

UUGateClient client = new UUGateClient("https://api.uugate.com",
    System.getenv("UUGATE_MERCHANT_UID"), System.getenv("UUGATE_API_KEY"));
String order = client.createPayinOrder(Map.of(
    "chainCode", "TRON", "tokenSymbol", "USDT",
    "merchantOrderNo", "M202604170001", "amount", "100.00",
    "notifyUrl", "https://merchant.example.com/api/uugate/payin-notify"));

ZIP Download

Download Java SDK ZIPuugate-java-sdk.zip