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Add new example for MsgSwap and MsgTransfer (#23)
* chore: bump finschia-proto:4.0.0-rc2 * chore: add new example for swap and transfer in single tx * chore: jdk 8(no longer available) -> 11 * chore: update changelog
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74
...s/with-tx-wrapper-example/src/main/kotlin/network/finschia/sdk/example/SwapAndTransfer.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,74 @@ | ||
| package network.finschia.sdk.example | ||
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| import io.grpc.ManagedChannelBuilder | ||
| import network.finschia.sdk.account.HDWallet | ||
| import network.finschia.sdk.base.Tx | ||
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| suspend fun main() { | ||
| // Change me for your environment | ||
| val chainId = "sim" | ||
| val hrpPrefix = "link" | ||
| val host = "localhost" | ||
| val port = 9090 | ||
| val fromDenom = "cony" | ||
| val toDenom = "peb" | ||
| val conyAmount = "1" | ||
| val swapRateFromConyToPeb = "148079656000000" | ||
| val amountToTransfer = swapRateFromConyToPeb.toBigInteger().multiply(conyAmount.toBigInteger()) | ||
| val kaiaAddress = "0xf7bAc63fc7CEaCf0589F25454Ecf5C2ce904997c" | ||
| val gasLimit: Long = 150000 | ||
| val seqNum: Long = 14 | ||
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| // Initialize gRPC channel | ||
| val channel = ManagedChannelBuilder.forAddress(host, port).usePlaintext().build() | ||
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| // Sender's info | ||
| val mnemonic = "mind flame tobacco sense move hammer drift crime ring globe art gaze cinnamon helmet cruise special produce notable negative wait path scrap recall have" | ||
| val hdWallet = HDWallet.loadFromMnemonic(mnemonic) | ||
| val aliceKey = hdWallet.getKeyWallet(0) | ||
| val aliceAddress = aliceKey.address.toBech32(hrpPrefix) | ||
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| // Build MsgSwap | ||
| val amountFromDenom = cosmos.base.v1beta1.coin { | ||
| amount = conyAmount | ||
| denom = fromDenom | ||
| } | ||
| val msgSwap = lbm.fswap.v1.msgSwap { | ||
| this.fromCoinAmount = amountFromDenom | ||
| this.toDenom = toDenom | ||
| this.fromAddress = aliceAddress | ||
| } | ||
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| // Build MsgTransfer | ||
| val msgTransfer = lbm.fbridge.v1.msgTransfer { | ||
| this.amount = amountToTransfer.toString() | ||
| this.sender = aliceAddress | ||
| this.receiver = kaiaAddress | ||
| } | ||
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| // Build Tx with two messages | ||
| val tx = Tx.newBuilder() | ||
| .setChainId(chainId) | ||
| .addMessage(com.google.protobuf.any { | ||
| typeUrl = "/lbm.fswap.v1.MsgSwap" | ||
| value = msgSwap.toByteString() | ||
| }) | ||
| .addMessage(com.google.protobuf.any { | ||
| typeUrl = "/lbm.fbridge.v1.MsgTransfer" | ||
| value = msgTransfer.toByteString() | ||
| }) | ||
| .addSigner(aliceKey, seqNum) | ||
| .setFee(cosmos.tx.v1beta1.fee { this.gasLimit = gasLimit }) | ||
| .setMemo("") | ||
| .build() | ||
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| // Sign Tx | ||
| tx.sign(aliceKey, 0) | ||
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| // Send Tx | ||
| val resultTxHash = TxClient(channel).use { | ||
| it.broadcastTx(tx) | ||
| } | ||
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| println(resultTxHash) | ||
| } |
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