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‎README.MD‎

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# assembly script contract code template
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## build wasm binary
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## compile only
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```shell script
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npm run asbuild
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```
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1. clone or download this repository
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## deploy contract
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2. execute `npm install` to install dependencies
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```shell script
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node ./deploy.js
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```
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3. write your contract code at assembly/index.ts
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## 代币合约
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4. execute command `java -jar cmd-*.jar compile -s assembly/index.ts -o index.wasm -a node_modules/.bin/asc`
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```shell script
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# 编译
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npx run asbuild:coin
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# 部署合约
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node tests/deploy-coin.js
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## compile and deploy
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# 查看账户余额
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node tests/view-coin-balance.js
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1. clone or download this repository
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# 充值
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node tests/call-coin-charge.js
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2. execute `npm install` to install dependencies
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3. write your contract code at assembly/index.ts
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4. configure your tds server at cmd-config.json
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5. download latest cmd tool cmd-1.0-SNAPSHOT.jar at [release page](https://github.com/TrustedDataFramework/assembly-script-template/releases)
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6. execute command `java -jar cmd-*.jar deploy -c cmd-config.json`
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# 转账
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node tests/call-coin-transfer.js
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```

‎cmd-config.json‎

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{
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"version": "",
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"entry-point": "",
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"host": "",
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"port": "",
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"source": "assembly/index.ts",
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"private-key": "",
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"asc-path": "node_modules/.bin/asc"

‎cmd/src/main/java/org/tds/cmd/AscWrapper.java‎

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package org.tds.cmd;
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import lombok.NonNull;
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import lombok.RequiredArgsConstructor;
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import lombok.SneakyThrows;
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import org.apache.tika.io.IOUtils;
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import java.io.InputStream;
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@RequiredArgsConstructor
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public class AscWrapper {
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@NonNull
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private final String ascPath;
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@SneakyThrows
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public byte[] compile(@NonNull String source) {
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String cmd = ascPath + " " + source + " --optimize -b";
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Process p = Runtime.getRuntime().exec(cmd);
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InputStream in = p.getInputStream();
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return IOUtils.toByteArray(in);
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}
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}

‎cmd/src/main/java/org/tds/cmd/Compile.java‎

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package org.tds.cmd;
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import com.beust.jcommander.Parameter;
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import com.beust.jcommander.Parameters;
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import lombok.SneakyThrows;
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import java.nio.file.Files;
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import java.nio.file.Paths;
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import java.nio.file.StandardOpenOption;
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import java.util.Arrays;
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@Parameters(commandDescription = "compile source file to wasm binary")
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public class Compile {
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@Parameter(names = {"--source", "-s"}, description = "wasm contract source file")
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private String source;
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@Parameter(names = {"--output", "-p"}, description = "target file")
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private String output;
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@Parameter(names = {"--ascPath", "-a"}, description = "asc file path, often located in node_modules/.bin/")
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private String ascPath;
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private String beforeExtension(String file) {
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if (file.isEmpty())
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return file;
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char[] chars = file.toCharArray();
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int i = -1;
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for (int j = 0; j < chars.length; j++) {
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if (chars[j] == '.') i = j;
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}
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if (i < 0)
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return file;
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return new String(Arrays.copyOfRange(chars, 0, i));
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}
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public void withDefault() {
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if (ascPath == null || ascPath.isEmpty())
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ascPath = "node_modules/.bin/asc";
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if (output == null || output.isEmpty()) {
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output = beforeExtension(source) + ".wasm";
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}
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}
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@SneakyThrows
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public void run() {
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withDefault();
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AscWrapper wrapper = new AscWrapper(ascPath);
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Files.write(Paths.get(output), wrapper.compile(source), StandardOpenOption.WRITE, StandardOpenOption.CREATE, StandardOpenOption.TRUNCATE_EXISTING);
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}
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}

‎cmd/src/main/java/org/tds/cmd/Deploy.java‎

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package org.tds.cmd;
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import com.beust.jcommander.Parameter;
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import com.beust.jcommander.Parameters;
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import lombok.SneakyThrows;
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import org.tdf.common.util.HexBytes;
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import org.tdf.sunflower.consensus.poa.PoAConstants;
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import org.tdf.sunflower.state.Address;
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import org.tdf.sunflower.types.CryptoContext;
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import org.tdf.sunflower.types.Transaction;
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import java.io.File;
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import static org.tds.cmd.Main.OBJECT_MAPPER;
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@Parameters(commandDescription = "compile and deploy contract to tds server")
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public class Deploy {
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@Parameter(names = {"--source", "-s"}, description = "wasm contract source file")
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private String source;
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@Parameter(names = {"--privateKey", "-k"}, description = "your tds private key")
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private String privateKey;
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@Parameter(names = {"--ascPath", "-a"}, description = "asc file path, often located in node_modules/.bin/")
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private String ascPath;
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@Parameter(names = {"--host", "-h"}, description = "tds server host")
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private String host;
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@Parameter(names = {"--port", "-p"}, description = "tds server port")
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private int port;
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@Parameter(names = {"--config", "-c"}, description = "deploy configuration file, overrided by command line options")
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private String config;
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private void setConfig(Config config) {
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if (this.source == null || this.source.isEmpty())
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this.source = config.getSource();
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if (this.privateKey == null || this.privateKey.isEmpty())
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this.privateKey = config.getPrivateKey();
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if (this.ascPath == null || this.ascPath.isEmpty())
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this.ascPath = config.getAscPath();
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if (this.host == null || this.host.isEmpty())
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this.host = config.getHost();
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if (this.port == 0)
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this.port = config.getPort();
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}
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@SneakyThrows
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private void loadJsonConfig() {
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if (config != null && !config.isEmpty()) {
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File f = new File(config);
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if (f.exists() && !f.isDirectory()) {
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Config c = OBJECT_MAPPER.readValue(f, Config.class);
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setConfig(c);
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}
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}
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}
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@SneakyThrows
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public void run() {
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loadJsonConfig();
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HexBytes publicKey = HexBytes.fromBytes(CryptoContext.getPkFromSk(HexBytes.decode(privateKey)));
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HttpUtil util = new HttpUtil(host, port);
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AscWrapper wrapper = new AscWrapper(ascPath);
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HexBytes address = Address.fromPublicKey(publicKey);
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Transaction tx = new Transaction(
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PoAConstants.TRANSACTION_VERSION,
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Transaction.Type.CONTRACT_DEPLOY.code,
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System.currentTimeMillis() / 1000,
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util.getLatestNonce(address) + 1,
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publicKey,
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0, 0,
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HexBytes.EMPTY,
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HexBytes.EMPTY,
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HexBytes.EMPTY
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);
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tx.setPayload(HexBytes.fromBytes(wrapper.compile(source)));
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byte[] sig = CryptoContext.sign(HexBytes.fromHex(privateKey).getBytes(), tx.getSignaturePlain());
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tx.setSignature(HexBytes.fromBytes(sig));
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System.out.println("deploy contract " + source + " address = " + tx.createContractAddress());
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System.out.println("tds server response: \n" + util.sendTransaction(tx));
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}
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}

‎cmd/src/main/java/org/tds/cmd/HttpUtil.java‎

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package org.tds.cmd;
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import com.fasterxml.jackson.databind.JsonNode;
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import lombok.NonNull;
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import lombok.RequiredArgsConstructor;
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import lombok.SneakyThrows;
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import org.apache.commons.codec.Charsets;
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import org.apache.http.HttpEntity;
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import org.apache.http.HttpResponse;
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import org.apache.http.HttpStatus;
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import org.apache.http.client.HttpClient;
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import org.apache.http.client.methods.HttpGet;
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import org.apache.http.client.methods.HttpPost;
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import org.apache.http.entity.ContentType;
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import org.apache.http.entity.StringEntity;
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import org.apache.http.impl.client.HttpClientBuilder;
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import org.apache.http.util.EntityUtils;
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import org.tdf.common.util.HexBytes;
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import org.tdf.sunflower.types.Transaction;
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import static org.tds.cmd.Main.OBJECT_MAPPER;
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@RequiredArgsConstructor
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public class HttpUtil {
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@NonNull
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private final String host;
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private final int port;
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private HttpClient client = HttpClientBuilder.create().build();
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@SneakyThrows
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public long getLatestNonce(HexBytes address) {
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String getUrl = "http://" + host + ":" + port + "/rpc/account/" + address.toHex();
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HttpGet get = new HttpGet(getUrl);
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HttpResponse getResponse = client.execute(get);
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if (getResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
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String data = EntityUtils.toString(getResponse.getEntity(), Charsets.UTF_8);
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JsonNode n = OBJECT_MAPPER.readValue(data, JsonNode.class);
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return n.get("data").get("nonce").asLong();
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}
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throw new RuntimeException("get nonce failed http error " + getResponse.getStatusLine().getStatusCode());
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}
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@SneakyThrows
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public String sendTransaction(Transaction tx) {
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String postUrl = "http://" + host + ":" + port + "/rpc/transaction";
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HttpPost post = new HttpPost(postUrl);
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HttpEntity entity = new StringEntity(OBJECT_MAPPER.writeValueAsString(tx), ContentType.APPLICATION_JSON);
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post.setEntity(entity);
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HttpResponse postResponse = client.execute(post);
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if (postResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {
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HttpEntity resEntity = postResponse.getEntity();
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return EntityUtils.toString(resEntity);
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}
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throw new RuntimeException("send transaction failed http error " + postResponse.getStatusLine().getStatusCode());
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}
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}

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