Fabric 编写案例 链码

1 、创建链码

2. 编辑代码

package main

import (
  "encoding/json"
  "fmt"
  "log"

  "github.com/hyperledger/fabric-contract-api-go/contractapi"
)

// SmartContract provides functions for managing an Asset
type SmartContract struct {
  contractapi.Contract
}

// Asset describes basic details of what makes up a simple asset
type Asset struct {
  ID             string `json:"ID"`
  Color          string `json:"color"`
  Size           int    `json:"size"`
  Owner          string `json:"owner"`
  AppraisedValue int    `json:"appraisedValue"`
}

// InitLedger adds a base set of assets to the ledger
func (s *SmartContract) InitLedger(ctx contractapi.TransactionContextInterface) error {
  assets := []Asset{
    {ID: "asset1