mirror of
https://github.com/hyperledger/fabric-samples.git
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2c43e03591
Created parser, contract and utils packages and extracted each piece of functionality into its own files. Removed "Get" prefix from methods and changed return values from interfaces to structs. 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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go 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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