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🔗 Polished Java library for EtherScan.io API

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GoodforGod/java-etherscan-api

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Etherscan Java API implementation.

Library supports all available EtherScanAPI calls for all availableEthereum Networks.

Dependency 🚀

Maven

<dependency>    <groupId>com.github.goodforgod</groupId>    <artifactId>java-etherscan-api</artifactId>    <version>1.0.1</version></dependency>

Gradle

dependencies {    compile'com.github.goodforgod:java-etherscan-api:1.0.1'}

Content

Mainnet and Testnets

API support Ethereum:MAINNET,ROPSTEN,KOVAN,RINKEBY,GORLI,TOBALABA networks.

EtherScanApiapi =newEtherScanApi(EthNetwork.MAINNET);// DefaultEtherScanApiapiRinkeby =newEtherScanApi(EthNetwork.RINKEBY);EtherScanApiapiRopsten =newEtherScanApi(EthNetwork.ROPSTEN);EtherScanApiapiKovan =newEtherScanApi("YourApiKey",EthNetwork.KOVAN);

Custom HttpClient

In case you need to set custom timeout, custom headers or better implementation for HttpClient,just implementIHttpExecutor by your self or initialize it with your values.

intconnectionTimeout =10000;intreadTimeout =7000;Supplier<IHttpExecutor>supplier = () ->newHttpExecutor(connectionTimeout);Supplier<IHttpExecutor>supplierFull = () ->newHttpExecutor(connectionTimeout,readTimeout);EtherScanApiapi =newEtherScanApi(EthNetwork.RINKEBY,supplier);EtherScanApiapiWithKey =newEtherScanApi("YourApiKey",EthNetwork.MAINNET,supplierFull);

API Examples

You can read about all API methods onEtherscan

Library support all available EtherScan API.

You can use librarywith or without API key(Check API request\sec restrictions when used without API key).

Library will automatically limit requests up to5 req/sec when usedwithout key.

EtherScanApiapi =newEtherScanApi();EtherScanApiapi =newEtherScanApi("YourApiKey");

Below are examples for each API category.

Account Api

Get Ether Balance for a single Address

EtherScanApiapi =newEtherScanApi();Balancebalance =api.account().balance("0x8d4426f94e42f721C7116E81d6688cd935cB3b4F");

Block Api

Get uncles block for block height

EtherScanApiapi =newEtherScanApi();Optional<UncleBlock>uncles =api.block().uncles(200000);

Contract Api

Request contract ABI fromverified codes

EtherScanApiapi =newEtherScanApi();Abiabi =api.contract().contractAbi("0xBB9bc244D798123fDe783fCc1C72d3Bb8C189413");

Logs Api

Get event logs for single topic

EtherScanApiapi =newEtherScanApi();LogQueryquery =LogQueryBuilder.with("0x33990122638b9132ca29c723bdf037f1a891a70c")           .topic("0xf63780e752c6a54a94fc52715dbc5518a3b4c3c2833d301a204226548a2a8545")           .build();List<Log>logs =api.logs().logs(query);

Get event logs for 3 topics with respectful operations

EtherScanApiapi =newEtherScanApi();LogQueryquery =LogQueryBuilder.with("0x33990122638b9132ca29c723bdf037f1a891a70c",379224,400000)        .topic("0xf63780e752c6a54a94fc52715dbc5518a3b4c3c2833d301a204226548a2a8545","0x72657075746174696f6e00000000000000000000000000000000000000000000","0x72657075746174696f6e00000000000000000000000000000000000000000000")        .setOpTopic0_1(LogOp.AND)        .setOpTopic0_2(LogOp.OR)        .setOpTopic1_2(LogOp.AND)        .build();List<Log>logs =api.logs().logs(query);

Proxy Api

Get tx detailds with proxy endpoint

EtherScanApiapi =newEtherScanApi(EthNetwork.MAINNET);Optional<TxProxy>tx =api.proxy().tx("0x1e2910a262b1008d0616a0beb24c1a491d78771baa54a33e66065e03b1f46bc1");

Get block info with proxy endpoint

EtherScanApiapi =newEtherScanApi(EthNetwork.MAINNET);Optional<BlockProxy>block =api.proxy().block(15215);

Stats Api

Statistic about last price

EtherScanApiapi =newEtherScanApi();Priceprice =api.stats().lastPrice();

Transaction Api

Request receipt status for tx

EtherScanApiapi =newEtherScanApi();Optional<Boolean>status =api.txs().receiptStatus("0x513c1ba0bebf66436b5fed86ab668452b7805593c05073eb2d51d3a52f480a76");

Token Api

You can read about token APIhere

Token API methods migrated toAccount &Stats respectfully.

Version History

1.0.1 - Gorli & TOBALABA networks support.

1.0.0 - Initial project with all API functionality, for all available networks, with tests coverage for all cases.

License

This project is licensed under the MIT - see theLICENSE file for details.

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