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feat: add and update TxMetadata examples
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‎examples/src/main/kotlin/dashj/org/platform/CreateTxMetadataTest.kt

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/**
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* Copyright (c) 2022-present, Dash Core Group
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*/
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package dashj.org.platform
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import org.bitcoinj.params.TestNet3Params
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import org.bitcoinj.wallet.AuthenticationKeyChain
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import org.bitcoinj.wallet.DerivationPathFactory
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import org.bitcoinj.wallet.DeterministicKeyChain
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import org.bitcoinj.wallet.DeterministicSeed
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import org.bitcoinj.wallet.KeyChainGroup
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import org.bitcoinj.wallet.Wallet
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import org.bitcoinj.wallet.authentication.AuthenticationGroupExtension
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import org.dashj.platform.contracts.wallet.TxMetadataDocument
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import org.dashj.platform.wallet.TxMetadataItem
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import org.dashj.platform.dashpay.BlockchainIdentity
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import org.dashj.platform.dpp.util.Converters
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import org.dashj.platform.dpp.util.Entropy
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import org.dashj.platform.sdk.Client
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import org.dashj.platform.sdk.client.ClientOptions
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import org.dashj.platform.sdk.client.WalletOptions
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import org.dashj.platform.sdk.dashsdk
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import org.dashj.platform.sdk.platform.Platform
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import org.dashj.platform.wallet.TxMetadata
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import org.json.JSONObject
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import java.util.*
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object CreateTxMetadataTest {
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val platform = Platform(TestNet3Params.get())
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//val platform = Platform(MainNetParams.get())
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val txMetadata = TxMetadata(platform)
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val seed = "caution kitchen month seven humble olympic author session dutch direct decrease moment"
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// val seed = "half sample spirit edit dawn humor eight refuse hundred suit critic print"
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val wallet: Wallet = Wallet(
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platform.params,
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KeyChainGroup.builder(platform.params)
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.addChain(
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DeterministicKeyChain.builder()
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.accountPath(DerivationPathFactory.get(platform.params).bip44DerivationPath(0))
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.seed(DeterministicSeed(seed, null, "", Date().time))
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.build()
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)
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.build()
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)
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val authenticationGroupExtension = AuthenticationGroupExtension(platform.params)
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val blockchainIdentity = BlockchainIdentity(platform, 0, wallet, authenticationGroupExtension)
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val txMetadataItem = TxMetadataItem(
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Entropy.generateRandomBytes(32),
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System.currentTimeMillis() / 1000,
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"Alice's Pizza Party",
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51.00,
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"USD",
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"expense",
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null
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)
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val txMetadataItemTwo = TxMetadataItem(
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Converters.fromHex("c44d1077cd4628d0ac06e22032a4e8458f9d01be6342453de3eef88657b193ce"),
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System.currentTimeMillis() / 1000,
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"Bob's Burger Joint",
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52.23,
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"USD",
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"expense",
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"DashDirect"
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)
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val txMetadataItemThree = TxMetadataItem(
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Entropy.generateRandomBytes(32),
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System.currentTimeMillis() / 1000,
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null,
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52.23,
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"USD",
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"expense"
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)
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val txMetadataItemFour = TxMetadataItem(
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Entropy.generateRandomBytes(32),
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System.currentTimeMillis() / 1000,
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"Bob's Burger Joint",
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52.23,
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"USD",
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"expense",
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"DashDirect",
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customIconUrl = "https://storage.googleapis.com/mash-potato-fireplace.appspot.com/alhi323/alhi/alhirafiyun.png",
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giftCardNumber = "123456-7899-abcdef",
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giftCardPin = "1234",
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merchantName = "1-800-HotSoup",
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originalPrice = 54.99,
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barcodeValue = "3249u3ou234238403820820840238082304823047234098234023802384",
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barcodeFormat = "EAN_8",
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merchantUrl = "https://1-800-hotsoup.com"
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)
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val txMetadataItems = listOf(txMetadataItem, txMetadataItemTwo, txMetadataItemThree, txMetadataItemFour)
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init {
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authenticationGroupExtension.addKeyChains(
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platform.params, wallet.keyChainSeed,
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EnumSet.of(
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AuthenticationKeyChain.KeyChainType.BLOCKCHAIN_IDENTITY,
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AuthenticationKeyChain.KeyChainType.BLOCKCHAIN_IDENTITY_FUNDING,
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AuthenticationKeyChain.KeyChainType.BLOCKCHAIN_IDENTITY_TOPUP,
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AuthenticationKeyChain.KeyChainType.INVITATION_FUNDING
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)
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)
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wallet.addExtension(authenticationGroupExtension)
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println("initializing platform")
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platform.useValidNodes()
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if (blockchainIdentity.recoverIdentity(authenticationGroupExtension.identityKeyChain.getKey(0).pubKeyHash)) {
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println("recovered blockchain identity: ${blockchainIdentity.uniqueIdString}")
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} else {
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error("recovery failed to find identity")
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}
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}
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lateinit var client: Client
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@JvmStatic
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fun main(args: Array<String>) {
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println("CreateTxMetadataTest")
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client = Client(ClientOptions(network = "testnet"))
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client.platform.useValidNodes()
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runTests(args.size >= 2 && args[1] == "true")
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}
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fun publishTest() {
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val balanceBefore = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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blockchainIdentity.publishTxMetaData(txMetadataItems, null, 1, TxMetadataDocument.VERSION_PROTOBUF)
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val balanceAfter = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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println("before: $balanceBefore")
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println("after: $balanceAfter")
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}
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private fun publishTransactions(txMetadata: TxMetadataItem, count: Int) {
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val txMetadataList = arrayListOf<TxMetadataItem>()
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for (i in IntRange(0, count)) {
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txMetadataList.add(txMetadata)
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}
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val balanceBefore = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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blockchainIdentity.publishTxMetaData(txMetadataList, null, 1, TxMetadataDocument.VERSION_PROTOBUF)
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val balanceAfter = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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println("$count tx before: $balanceBefore")
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println("$count tx after: $balanceAfter")
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}
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fun publishTxsTest() {
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var balanceBefore = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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blockchainIdentity.publishTxMetaData(listOf(txMetadataItemThree), null, 1, TxMetadataDocument.VERSION_PROTOBUF)
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var balanceAfter = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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println("1 tx before: $balanceBefore")
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println("1 tx after: $balanceAfter")
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balanceBefore = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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blockchainIdentity.publishTxMetaData(listOf(txMetadataItemThree, txMetadataItemThree), null, 1, TxMetadataDocument.VERSION_PROTOBUF)
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balanceAfter = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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println("2 tx before: $balanceBefore")
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println("2 tx after: $balanceAfter")
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balanceBefore = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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blockchainIdentity.publishTxMetaData(listOf(txMetadataItemThree, txMetadataItemThree, txMetadataItemThree), null, 1, TxMetadataDocument.VERSION_PROTOBUF)
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balanceAfter = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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println("3 tx before: $balanceBefore")
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println("3 tx after: $balanceAfter")
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// balanceBefore = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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// blockchainIdentity.publishTxMetaData(listOf(txMetadataItemFour), null, 1, TxMetadataDocument.VERSION_PROTOBUF)
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// balanceAfter = dashsdk.platformMobileFetchIdentityFetchIdentityBalanceWithSdk(platform.rustSdk, blockchainIdentity.uniqueIdentifier.toNative())
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// println("1 big tx before: $balanceBefore")
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// println("1 big tx after: $balanceAfter")
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publishTransactions(txMetadataItemThree, 10)
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publishTransactions(txMetadataItemThree, 20)
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publishTransactions(txMetadataItemThree, 39)
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}
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private fun runTests(showOnly: Boolean) {
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//val blockchainIdentity = BlockchainIdentity(client.platform, 0, client.wallet!!, client.authenticationExtension)
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//blockchainIdentity.recoverIdentity()
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val identity = blockchainIdentity.identity!!
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publishTest()
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publishTxsTest()
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val documents = txMetadata.get(identity.id)
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println("Tx Metadata: -----------------------------------")
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for (doc in documents) {
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val txDoc = TxMetadataDocument(doc)
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if (txDoc.encryptedMetadata[0] != 0.toByte()) {
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println(JSONObject(doc.toJSON()).toString(2))
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val txList = blockchainIdentity.decryptTxMetadata(txDoc, null)
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println(" $txList")
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}
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}
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}
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}

‎examples/src/main/kotlin/dashj/org/platform/DisplayTxMetadata.kt

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println("Usage: DisplayTxMetadata network")
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return
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}
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println("Enter a recovery phrase: ")
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val scanner = Scanner(System.`in`)
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val phrase = scanner.nextLine()
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val recoveryPhrase = if (phrase == "default") { DefaultIdentity(args[0]).seed } else phrase
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val phrase = if (args.size == 1) {
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println("Enter a recovery phrase: ")
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val scanner = Scanner(System.`in`)
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scanner.nextLine()
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} else {
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args[1]
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}
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val recoveryPhrase = if (phrase == "default") {
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DefaultIdentity(args[0]).seed
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} else phrase
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client = Client(ClientOptions(network = args[0], walletOptions = WalletOptions(recoveryPhrase)))
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client.platform.useValidNodes()
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displayDocuments()
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println("Tx Metadata for ${identity.id}: -----------------------------------")
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for (doc in documents) {
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println("new document: ${doc.id}; createdAt ${Date(doc.createdAt!!)}")
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println("new document: ${doc.id}; updatedAt ${Date(doc.updatedAt!!)}")
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val txDoc = TxMetadataDocument(doc)
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try {
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println("txDoc ${txDoc.encryptedMetadata.toBase64()}")
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val txList = blockchainIdentity.decryptTxMetadata(txDoc, null)
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// println(" $txList")
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for (txmd in txList) {
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println("* $txmd")
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}

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