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095bf304b4
Persisting ledger writes to the file system into the store.log file in the application-go directory. The write values are converted from bytes to a string when the read write sets are unwrapped in the transaction processor. Signed-off-by: Stanislav Jakuschevskij <stas@two-giants.com>
61 lines
1.4 KiB
Go
61 lines
1.4 KiB
Go
package main
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import (
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"fmt"
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atb "offChainData/contract"
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"offChainData/utils"
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"github.com/hyperledger/fabric-gateway/pkg/client"
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"google.golang.org/grpc"
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)
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func transact(clientConnection *grpc.ClientConn) {
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id, options := newConnectOptions(clientConnection)
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gateway, err := client.Connect(id, options...)
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if err != nil {
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panic((err))
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}
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defer gateway.Close()
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contract := gateway.GetNetwork(channelName).GetContract(chaincodeName)
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smartContract := atb.NewAssetTransferBasic(contract)
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app := newTransactApp(smartContract)
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app.run()
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}
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type transactApp struct {
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smartContract *atb.AssetTransferBasic
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batchSize uint
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}
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func newTransactApp(smartContract *atb.AssetTransferBasic) *transactApp {
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return &transactApp{smartContract, 10}
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}
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func (t *transactApp) run() {
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for i := 0; i < int(t.batchSize); i++ {
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t.transact()
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}
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}
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func (t *transactApp) transact() {
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anAsset := atb.NewAsset()
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t.smartContract.CreateAsset(anAsset)
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fmt.Printf("\nCreated asset %s\n", anAsset.ID)
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// Transfer randomly 1 in 2 assets to a new owner.
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if utils.RandomInt(2) == 0 {
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newOwner := utils.DifferentElement(atb.Owners, anAsset.Owner)
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oldOwner := t.smartContract.TransferAsset(anAsset.ID, newOwner)
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fmt.Printf("Transferred asset %s from %s to %s\n", anAsset.ID, oldOwner, newOwner)
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}
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// Delete randomly 1 in 4 created assets.
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if utils.RandomInt(4) == 0 {
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t.smartContract.DeleteAsset(anAsset.ID)
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fmt.Printf("Deleted asset %s\n", anAsset.ID)
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}
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}
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