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...main/java/com/hedera/hashgraph/sdk/examples/InitializeClientWithMirrorNetworkExample.java
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|---|---|---|
| @@ -0,0 +1,92 @@ | ||
| /*- | ||
| * | ||
| * Hedera Java SDK | ||
| * | ||
| * Copyright (C) 2020 - 2024 Hedera Hashgraph, LLC | ||
| * | ||
| * Licensed under the Apache License, Version 2.0 (the "License"); | ||
| * you may not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| * | ||
| */ | ||
|
|
||
| package com.hedera.hashgraph.sdk.examples; | ||
|
|
||
| import com.hedera.hashgraph.sdk.AccountCreateTransaction; | ||
| import com.hedera.hashgraph.sdk.AccountId; | ||
| import com.hedera.hashgraph.sdk.Client; | ||
| import com.hedera.hashgraph.sdk.Hbar; | ||
| import com.hedera.hashgraph.sdk.PrivateKey; | ||
| import com.hedera.hashgraph.sdk.logger.LogLevel; | ||
| import com.hedera.hashgraph.sdk.logger.Logger; | ||
| import io.github.cdimascio.dotenv.Dotenv; | ||
| import java.util.List; | ||
| import java.util.Objects; | ||
|
|
||
| public class InitializeClientWithMirrorNetworkExample { | ||
| /* | ||
| * See .env.sample in the examples folder root for how to specify values below | ||
| * or set environment variables with the same names. | ||
| */ | ||
|
|
||
| /** | ||
| * Operator's account ID. Used to sign and pay for operations on Hedera. | ||
| */ | ||
| private static final AccountId OPERATOR_ID = AccountId.fromString( | ||
| Objects.requireNonNull(Dotenv.load().get("OPERATOR_ID"))); | ||
|
|
||
| /** | ||
| * Operator's private key. | ||
| */ | ||
| private static final PrivateKey OPERATOR_KEY = PrivateKey.fromString( | ||
| Objects.requireNonNull(Dotenv.load().get("OPERATOR_KEY"))); | ||
|
|
||
| /** | ||
| * SDK_LOG_LEVEL defaults to SILENT if not specified in dotenv file. Log levels can be: TRACE, DEBUG, INFO, WARN, | ||
| * ERROR, SILENT. | ||
| * <p> | ||
| * Important pre-requisite: set simple logger log level to same level as the SDK_LOG_LEVEL, for example via VM | ||
| * options: -Dorg.slf4j.simpleLogger.log.com.hedera.hashgraph=trace | ||
| */ | ||
| private static final String SDK_LOG_LEVEL = Dotenv.load().get("SDK_LOG_LEVEL", "SILENT"); | ||
|
|
||
| public static void main(String[] args) throws Exception { | ||
| /* | ||
| * Step 0: | ||
| * Create and configure the SDK Client. | ||
| */ | ||
| Client client = Client.forMirrorNetwork(List.of("testnet.mirrornode.hedera.com:443")); | ||
| // All generated transactions will be paid by this account and signed by this key. | ||
| client.setOperator(OPERATOR_ID, OPERATOR_KEY); | ||
| // Attach logger to the SDK Client. | ||
| client.setLogger(new Logger(LogLevel.valueOf(SDK_LOG_LEVEL))); | ||
|
|
||
| /* | ||
| * Step 1: | ||
| * Generate ED25519 key pair. | ||
| */ | ||
| System.out.println("Generating ED25519 key pair..."); | ||
| PrivateKey privateKey = PrivateKey.generateED25519(); | ||
|
|
||
| /* | ||
| * Step 2: | ||
| * Create account | ||
| */ | ||
| AccountId aliceId = new AccountCreateTransaction() | ||
| .setKey(privateKey) | ||
| .setInitialBalance(Hbar.from(5)) | ||
| .execute(client) | ||
| .getReceipt(client) | ||
| .accountId; | ||
| Objects.requireNonNull(aliceId); | ||
| System.out.println("Alice's account ID: " + aliceId); | ||
| } | ||
| } |
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