## Indy SDK for Java This is a **work-in-progress** Java wrapper for [Indy](https://www.hyperledger.org/projects/indy). It is implemented using a foreign function interface (FFI) to a native library written in Rust. Indy is the open-source codebase behind the Sovrin network for self-sovereign digital identity. Pull requests welcome! **Not ready for production use! Not all commands work properly! Use at your own risk!** ### How to build First, build the native "sovrin" library at https://github.com/hyperledger/indy-sdk: cargo build Then copy the resulting `libsovrin.so` to `./lib/`. Then run mvn clean install ### Example use public class TestCreate { public static final String TRUSTEE_DID = "V4SGRU86Z58d6TV7PBUe6f"; public static final String TRUSTEE_VERKEY = "GJ1SzoWzavQYfNL9XkaJdrQejfztN4XqdsiV4ct3LXKL"; public static final String TRUSTEE_SEED = "000000000000000000000000Trustee1"; public static void main(String[] args) throws Exception { if (! LibSovrin.isInitialized()) LibSovrin.init(new File("./lib/libsovrin.so")); // create pool System.out.println("=== CREATE POOL ==="); CreatePoolLedgerConfigJSONParameter createPoolLedgerConfigJSONParameter = new CreatePoolLedgerConfigJSONParameter("localhost.txn"); System.out.println("CreatePoolLedgerConfigJSONParameter: " + createPoolLedgerConfigJSONParameter); CreatePoolLedgerConfigResult createPoolLedgerConfigResult = Pool.createPoolLedgerConfig("localhost", createPoolLedgerConfigJSONParameter).get(); System.out.println("CreatePoolLedgerConfigResult: " + createPoolLedgerConfigResult); // open pool System.out.println("=== OPEN POOL ==="); OpenPoolLedgerJSONParameter openPoolLedgerJSONParameter = new OpenPoolLedgerJSONParameter(Boolean.TRUE, null, null); System.out.println("OpenPoolLedgerJSONParameter: " + openPoolLedgerJSONParameter); OpenPoolLedgerResult openPoolLedgerResult = Pool.openPoolLedger("localhost", openPoolLedgerJSONParameter).get(); System.out.println("OpenPoolLedgerResult: " + openPoolLedgerResult); Pool pool = openPoolLedgerResult.getPool(); // create TRUSTEE wallet System.out.println("=== CREATE TRUSTEE WALLET ==="); CreateWalletResult createWalletResultTrustee = Wallet.createWallet("localhost", "trusteewallet", "default", null, null).get(); System.out.println("CreateWalletResultTrustee: " + createWalletResultTrustee); // create USER wallet System.out.println("=== CREATE USER WALLET ==="); CreateWalletResult createWalletResultUser = Wallet.createWallet("localhost", "userwallet", "default", null, null).get(); System.out.println("CreateWalletResultUser: " + createWalletResultUser); // open TRUSTEE wallet System.out.println("=== OPEN TRUSTEE WALLET ==="); OpenWalletResult openWalletResultTrustee = Wallet.openWallet("trusteewallet", null, null).get(); System.out.println("OpenWalletResultTrustee: " + openWalletResultTrustee); Wallet walletTrustee = openWalletResultTrustee.getWallet(); // create TRUSTEE DID System.out.println("=== CREATE TRUSTEE DID ==="); CreateAndStoreMyDidJSONParameter createAndStoreMyDidJSONParameterTrustee = new CreateAndStoreMyDidJSONParameter(null, TRUSTEE_SEED, null, null); System.out.println("CreateAndStoreMyDidJSONParameterTrustee: " + createAndStoreMyDidJSONParameterTrustee); CreateAndStoreMyDidResult createAndStoreMyDidResultTrustee = Signus.createAndStoreMyDid(walletTrustee, createAndStoreMyDidJSONParameterTrustee).get(); System.out.println("CreateAndStoreMyDidResultTrustee: " + createAndStoreMyDidResultTrustee); // create NYM request System.out.println("=== CREATE NYM REQUEST ==="); BuildNymRequestResult buildNymRequestResult = Ledger.buildNymRequest(TRUSTEE_VERKEY, TRUSTEE_DID, TRUSTEE_VERKEY, null, null, SovrinConstants.ROLE_TRUSTEE).get(); System.out.println("BuildNymRequestResult: " + buildNymRequestResult); // sign System.out.println("=== SIGN ==="); SignResult signResult = Signus.sign(walletTrustee, TRUSTEE_DID, buildNymRequestResult.getRequestJson()).get(); System.out.println("SignResult: " + signResult); // submit request to ledger System.out.println("=== SUBMIT ==="); SubmitRequestResult submitRequestResult = Ledger.submitRequest(pool, signResult.getSignature()).get(); System.out.println("SubmitRequestResult: " + submitRequestResult); // close wallet System.out.println("=== CLOSE WALLET ==="); walletTrustee.closeWallet().get(); // close pool System.out.println("=== CLOSE POOL ==="); pool.closePoolLedger().get(); } } Output: === CREATE POOL === CreatePoolLedgerConfigJSONParameter: {"genesis_txn":"localhost.txn"} CreatePoolLedgerConfigResult: PoolResults.CreatePoolLedgerConfigResult[] === OPEN POOL === OpenPoolLedgerJSONParameter: {"refreshOnOpen":true} OpenPoolLedgerResult: PoolResults.OpenPoolLedgerResult[pool=Pool[poolHandle=2]] === CREATE TRUSTEE WALLET === CreateWalletResultTrustee: WalletResults.CreateWalletResult[] === CREATE USER WALLET === CreateWalletResultUser: WalletResults.CreateWalletResult[] === OPEN TRUSTEE WALLET === OpenWalletResultTrustee: WalletResults.OpenWalletResult[wallet=Wallet[walletHandle=3]] === CREATE TRUSTEE DID === CreateAndStoreMyDidJSONParameterTrustee: {"seed":"000000000000000000000000Trustee1"} CreateAndStoreMyDidResultTrustee: SignusResults.CreateAndStoreMyDidResult[did=V4SGRU86Z58d6TV7PBUe6f,verkey=GJ1SzoWzavQYfNL9XkaJdrQejfztN4XqdsiV4ct3LXKL,pk=XWSNZUwj7Uc4KzBuTQjNwCZZFwXSMNGVqnfDgbwMiNP] === CREATE NYM REQUEST === BuildNymRequestResult: LedgerResults.BuildNymRequestResult[requestJson={"reqId":1496433560568786245,"identifier":"GJ1SzoWzavQYfNL9XkaJdrQejfztN4XqdsiV4ct3LXKL","operation":{"type":"1","dest":"V4SGRU86Z58d6TV7PBUe6f","verkey":"GJ1SzoWzavQYfNL9XkaJdrQejfztN4XqdsiV4ct3LXKL","role":"0"}}] === SIGN === SignResult: SignusResults.SignResult[signature={"identifier":"GJ1SzoWzavQYfNL9XkaJdrQejfztN4XqdsiV4ct3LXKL","operation":{"dest":"V4SGRU86Z58d6TV7PBUe6f","role":"0","type":"1","verkey":"GJ1SzoWzavQYfNL9XkaJdrQejfztN4XqdsiV4ct3LXKL"},"reqId":1496433560568786245,"signature":"2g5hkUm4zZfv91k6BftJvFuBxVwWYvWzuVx4G8WnUivwty9QLLqSzEeLdPveu9wctDmN3AMBosNziHm5HRic9aZR"}] === SUBMIT === SubmitRequestResult: LedgerResults.SubmitRequestResult[requestResultJson={"result":{"reqId":1496433560568786245,"signature":"2g5hkUm4zZfv91k6BftJvFuBxVwWYvWzuVx4G8WnUivwty9QLLqSzEeLdPveu9wctDmN3AMBosNziHm5HRic9aZR","auditPath":["5LAnZ9NxbBSE23WSBHhNExAC3BXMhUgvddWNcBZpSBta","8zaHB69xfcxZZL7rYEKYYVj5xUvBs2onGXzWJjfALWRE","2fhF8bWzNtPXuzV4wF9aTUz4JctzGXjB8uEjEE6ytZZc","FiVgaUHHJ9Nu842dcj7JBHXned5mkz6HZRyhE8kTeWUH"],"identifier":"GJ1SzoWzavQYfNL9XkaJdrQejfztN4XqdsiV4ct3LXKL","txnTime":1496433560615.697265625,"seqNo":16,"rootHash":"2J5WdLNnBSFyeASKr5YZouYzWn3KXZafrPrX2JBDVhKM","dest":"V4SGRU86Z58d6TV7PBUe6f","role":"0","verkey":"GJ1SzoWzavQYfNL9XkaJdrQejfztN4XqdsiV4ct3LXKL","type":"1"},"op":"REPLY"}] === CLOSE WALLET === === CLOSE POOL ===