Add support for go version 1.18+

[hmoazzem]

It might be expected because of https://github.com/hyperledger/fabric-sdk-go/blob/main/test/fixtures/config/overrides/local_entity_matchers.yaml, but I haven't figured that out yet. Faced with the same issue https://github.com/hyperledger/fabric-sdk-go/issues/265, I resolved by downgrading golang to version 1.18. Reproducible scenario that works in go v1.18, but not higher.

config.yaml

version: 1.0.0

client:
  tlsEnable: true
  organization: org1
channels:
  channel0:
    orderers:
    - orderer1.orderer
    peers:
      peer0.org1: {}
organizations:
  org1:
    mspid: Org1MSP
    cryptoPath:  /home/fabric/crypto/orgs/org1/msp
    peers:
    - peer0.org1
    certificateAuthorities:
    - ca.org1
    users:
      admin:
        cert:
          path: /home/fabric/crypto/orgs/org1/admin/msp/signcerts/cert.pem
        key:
          path: /home/fabric/crypto/orgs/org1/admin/msp/keystore/key.pem
  orderer:
      mspID: OrdererMSP
      cryptoPath: /home/fabric/crypto/orderers/msp
orderers:
  orderer1.orderer:
    url: orderer1.orderer:7050
    tlsCACerts:
      path: /home/fabric/crypto/orderers/admin/tls/ca.pem
peers:
  peer0.org1:
    url: peer0.org1:7051
    tlsCACerts:
      path: /home/fabric/crypto/orgs/org1/admin/tls/ca.pem
certificateAuthorities:
  ca.org1:
    url: https://ca.org1:7054
    caName: ca.org1
    tlsCACerts:
      path: /home/fabric/crypto/orgs/org1/admin/tls/ca.pem

main.go

package main

import (
    "fmt"

    "github.com/hyperledger/fabric-sdk-go/pkg/client/channel"
    "github.com/hyperledger/fabric-sdk-go/pkg/core/config"
    "github.com/hyperledger/fabric-sdk-go/pkg/fabsdk"
)

const (
    channelID   = "channel0"
    orgName     = "org1"
    orgAdmin    = "admin"
    chaincodeID = "samplecc"
)

func main() {
    sdk, err := fabsdk.New(config.FromFile("config.yaml"))
    if err != nil {
        fmt.Println(err)
    }
    defer sdk.Close()

    clientChannelContext := sdk.ChannelContext(channelID, fabsdk.WithUser(orgAdmin), fabsdk.WithOrg(orgName))
    client, err := channel.New(clientChannelContext)
    if err != nil {
        fmt.Println(err)
    }

    response, err := client.Execute(channel.Request{ChaincodeID: chaincodeID, Fcn: "YourFunction"})
    if err != nil {
        fmt.Println(err)
    }
    fmt.Println(string(response.Payload))
}

[hmoazzem]

Same issue https://github.com/hyperledger/fabric-sdk-go/issues/260

[werniq]

I've replaced fabric-sdk-go in vendor directory with git clone https://github.com/hyperledger/fabric-sdk-go, and issue was solved.