使用fabric-sdk-go操作链码 | Go语言充电站

[Shitaibin]

http://lessisbetter.site/2019/09/02/fabric-sdk-go-chaincode/

前言本文把与fabric网络交互的baas、应用程序、客户端统称成为客户端，它们可以使用sdk和fabric网络进行交互，sdk调用grpc可以跟指定的peer和orderer进行通信。 fabric-sdk-go项目简介fabric-sdk-go是Fabric官方的Go语言SDK，它的目录结构如下： 有2个目录需要注意一下，internal和third_party，它们两个包含了sdk依赖的

[shuaizhang66]

我找了很久 不知道如何完成添加组织的操作

[shuaizhang66]

您好，您开源的项目我看了，写的很不错。但是想请问一下，动态添加组织的接口，fabric-sdk-go有提供吗？

[Shitaibin]

@shuailaotou 您好，您开源的项目我看了，写的很不错。但是想请问一下，动态添加组织的接口，fabric-sdk-go有提供吗？

这个我还没用过，组织的增加属于配置，建议研究下修改channel配置的接口： https://godoc.org/github.com/hyperledger/fabric-sdk-go/pkg/client/resmgmt#Client.SaveChannel

[iceriverdog]

@shuailaotou 我找了很久 不知道如何完成添加组织的操作 你好，我注册 user，您有资料吗？我搞了几天了没弄成。谢谢

[iceriverdog]

@Shitaibin

@shuailaotou 您好，您开源的项目我看了，写的很不错。但是想请问一下，动态添加组织的接口，fabric-sdk-go有提供吗？

这个我还没用过，组织的增加属于配置，建议研究下修改channel配置的接口： https://godoc.org/github.com/hyperledger/fabric-sdk-go/pkg/client/resmgmt#Client.SaveChannel

老板，后续还有其他功能的加入吗？或者有资料分享吗？我想注册用户和组织。谢谢

[Shitaibin]

@iceriverdog

@shuailaotou 我找了很久 不知道如何完成添加组织的操作 你好，我注册 user，您有资料吗？我搞了几天了没弄成。谢谢

加入组织是需要多个步骤的，可以直接参考fabric中文文档，过程已经很清晰了：https://hyperledger-fabric.readthedocs.io/zh_CN/release-1.4/channel_update_tutorial.html?highlight=%E5%8A%A0%E5%85%A5%E7%BB%84%E7%BB%87

需要使用configtxlator、jq等命令行工具生成加入组织的配置块，再使用SDK的SaveChannel接口

[hehui0316]

请问能分享main.go文件吗？

[Shitaibin]

@hehui0316

请问能分享main.go文件吗？

https://github.com/Shitaibin/fabric-sdk-go-sample

[iceriverdog]

楼主您好，怎么用 sdk go 进行富查询呢？我想查一个用户的资产，用selector，我cc name 是正确的，但是显示 Transaction processing for endorser [localhost:7051]: Chaincode status Code: (500) UNKNOWN. Description: Invalid Smart Contract function name. 我去看了这个错误不是来自 合约里面的 name 判断。

[hehui0316]

@Shitaibin @hehui0316

请问能分享main.go文件吗？

https://github.com/Shitaibin/fabric-sdk-go-sample

每次执行 gobuild的时候出现 ubuntu@VM-0-5-ubuntu:~/go/src/github.com/hyperledger/fabric-sdk-go-sample$ go run main.go stat main.go: no such file or directory

[Shitaibin]

@hehui0316

样例更新了，看仓库最新的README，样例在samples目录，有链码和事件2个样例。

[Shitaibin]

楼主您好，怎么用 sdk go 进行富查询呢？我想查一个用户的资产，用selector，我cc name 是正确的，但是显示 Transaction processing for endorser [localhost:7051]: Chaincode status Code: (500) UNKNOWN. Description: Invalid Smart Contract function name. 我去看了这个错误不是来自 合约里面的 name 判断。

与你的链码有关，这个不是fabric和sdk的代码，检查链码invoke中的函数，是否有你传递的函数名

[hehui0316]

@Shitaibin @hehui0316

样例更新了，看仓库最新的README，样例在samples目录，有链码和事件2个样例。 还是有问题 [fabsdk/fab] 2020/07/28 09:15:23 UTC - dispatcher.(Dispatcher).HandleConnectEvent -> WARN error creating connection: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] 2020/07/28 17:15:23 Instantiated chaincode error: instantiate chaincode error: error registering for TxStatus event: could not create client conn: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] [fabsdk/fab] 2020/07/28 09:15:33 UTC - dispatcher.(Dispatcher).HandleConnectEvent -> WARN error creating connection: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] [fabsdk] 2020/07/28 09:15:33 UTC - chpvdr.(*EventClientRef).Unregister -> WARN Error unregistering event registration: could not create client conn: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051]

[Shitaibin]

@hehui0316 你fabric-samples项目的BFYN启动了吗？

[hehui0316]

@Shitaibin @hehui0316 你fabric-samples项目的BFYN启动了吗？

启动了

[hehui0316]

@Shitaibin @hehui0316 你fabric-samples项目的BFYN启动了吗？

这个是完整的报错ig/overrides/local_entity_matchers.yaml for samples 2020/07/28 17:48:04 Initialized fabric sdk 2020/07/28 17:48:05 Initialized resource client 2020/07/28 17:48:05 Initialized channel client [fabsdk/fab] 2020/07/28 09:48:05 UTC - fab.detectDeprecatedNetworkConfig -> WARN Getting orderers from endpoint config channels.orderer is deprecated, use entity matchers to override orderer configuration [fabsdk/fab] 2020/07/28 09:48:05 UTC - fab.detectDeprecatedNetworkConfig -> WARN visit https://github.com/hyperledger/fabric-sdk-go/blob/master/test/fixtures/config/overrides/local_entity_matchers.yaml for samples 2020/07/28 17:48:05 Initialized fabric sdk 2020/07/28 17:48:05 Initialized resource client 2020/07/28 17:48:05 Initialized channel client [fabsdk/fab] 2020/07/28 09:48:15 UTC - dispatcher.(Dispatcher).HandleConnectEvent -> WARN error creating connection: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] 2020/07/28 17:48:15 Register block event error: could not create client conn: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] 2020/07/28 17:48:15 Registered block event [fabsdk/fab] 2020/07/28 09:48:25 UTC - dispatcher.(Dispatcher).HandleConnectEvent -> WARN error creating connection: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] 2020/07/28 17:48:25 Register filtered block event error: could not create client conn: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] 2020/07/28 17:48:25 Registered filtered block event 2020/07/28 17:48:25 Listen chaincode event: . 2020/07/28 17:48:25 Using event client to register chaincode event 2020/07/28 17:48:25 Transaction listener start [fabsdk/fab] 2020/07/28 09:48:35 UTC - dispatcher.(Dispatcher).HandleConnectEvent -> WARN error creating connection: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] 2020/07/28 17:48:35 Register chaincode event error: could not create client conn: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] 2020/07/28 17:48:35 Install response status: 200 2020/07/28 17:48:35 Chaincode has been installed on org1's peers [fabsdk/fab] 2020/07/28 09:48:45 UTC - dispatcher.(Dispatcher).HandleConnectEvent -> WARN error creating connection: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] 2020/07/28 17:48:45 Instantiated chaincode error: instantiate chaincode error: error registering for TxStatus event: could not create client conn: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] [fabsdk/fab] 2020/07/28 09:48:55 UTC - dispatcher.(Dispatcher).HandleConnectEvent -> WARN error creating connection: could not connect to peer1.org1.example.com:7051: dialing connection timed out [peer1.org1.example.com:7051] [fabsdk] 2020/07/28 09:48:55 UTC - chpvdr.(EventClientRef).Unregister -> WARN Error unregistering event registration: could not create client conn: could not connect to peer1.org1.example.com:7051: dialing connection timed out [peer1.org1.example.com:7051] [fabsdk/fab] 2020/07/28 09:49:05 UTC - dispatcher.(Dispatcher).HandleConnectEvent -> WARN error creating connection: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] [fabsdk] 2020/07/28 09:49:05 UTC - chpvdr.(EventClientRef).Unregister -> WARN Error unregistering event registration: could not create client conn: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] [fabsdk/fab] 2020/07/28 09:49:15 UTC - dispatcher.(Dispatcher).HandleConnectEvent -> WARN error creating connection: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] [fabsdk] 2020/07/28 09:49:15 UTC - chpvdr.(*EventClientRef).Unregister -> WARN Error unregistering event registration: could not create client conn: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051] panic: Instantiated chaincode error: instantiate chaincode error: error registering for TxStatus event: could not create client conn: could not connect to peer0.org1.example.com:7051: dialing connection timed out [peer0.org1.example.com:7051]

goroutine 1 [running]: log.Panicf(0xd473ca, 0x20, 0xc0004dfe38, 0x1, 0x1) /usr/local/go/src/log/log.go:358 +0xc0 main.DoChainCode(0xc000123cc0, 0xc0004fe1e0) /home/ubuntu/go/src/github.com/hyperledger/fabric-sdk-go-sample/samples/event/main.go:187 +0x1a9 main.main() /home/ubuntu/go/src/github.com/hyperledger/fabric-sdk-go-sample/samples/event/main.go:55 +0x405 exit status 2

[Shitaibin]

@Shitaibin @hehui0316 你fabric-samples项目的BFYN启动了吗？

启动了

我刚跑了一下，只发现配置文件路径错误，修复只有2个case都可以跑。

本机情况下，网络连通性不是问题，并且sdk的配置文件中也对各节点的域名进行了映射。

检查一下你的环境配置吧，peer、order是否正常，看看有没有其他原因

[hehui0316]

@Shitaibin

@Shitaibin @hehui0316 你fabric-samples项目的BFYN启动了吗？

启动了

我刚跑了一下，只发现配置文件路径错误，修复只有2个case都可以跑。

本机情况下，网络连通性不是问题，并且sdk的配置文件中也对各节点的域名进行了映射。

检查一下你的环境配置吧，peer、order是否正常，看看有没有其他原因

是不是因为bfyn已经装chaincode安装上了，再装同一个chaincode会有问题呀？

[hehui0316]

@Shitaibin

@Shitaibin @hehui0316 你fabric-samples项目的BFYN启动了吗？

启动了

我刚跑了一下，只发现配置文件路径错误，修复只有2个case都可以跑。

本机情况下，网络连通性不是问题，并且sdk的配置文件中也对各节点的域名进行了映射。

检查一下你的环境配置吧，peer、order是否正常，看看有没有其他原因

感觉像是端口占用了

[Shitaibin]

@Shitaibin

@Shitaibin @hehui0316 你fabric-samples项目的BFYN启动了吗？

启动了

我刚跑了一下，只发现配置文件路径错误，修复只有2个case都可以跑。 本机情况下，网络连通性不是问题，并且sdk的配置文件中也对各节点的域名进行了映射。 检查一下你的环境配置吧，peer、order是否正常，看看有没有其他原因

是不是因为bfyn已经装chaincode安装上了，再装同一个chaincode会有问题呀？

会是不同的错误，你这个报的是网络问题

[hehui0316]

@Shitaibin

@Shitaibin

@Shitaibin @hehui0316 你fabric-samples项目的BFYN启动了吗？

启动了

我刚跑了一下，只发现配置文件路径错误，修复只有2个case都可以跑。 本机情况下，网络连通性不是问题，并且sdk的配置文件中也对各节点的域名进行了映射。 检查一下你的环境配置吧，peer、order是否正常，看看有没有其他原因

是不是因为bfyn已经装chaincode安装上了，再装同一个chaincode会有问题呀？

会是不同的错误，你这个报的是网络问题 但是peer和order都启动了呀，请问能不能留个联系方式，方便咨询

[hehui0316]

[fabsdk/fab] 2020/07/29 02:15:23 UTC - fab.detectDeprecatedNetworkConfig -> WARN Getting orderers from endpoint config channels.orderer is deprecated, use entity matchers to override orderer configuration [fabsdk/fab] 2020/07/29 02:15:23 UTC - fab.detectDeprecatedNetworkConfig -> WARN visit https://github.com/hyperledger/fabric-sdk-go/blob/master/test/fixtures/config/overrides/local_entity_matchers.yaml for samples 2020/07/29 10:15:23 Initialized fabric sdk 2020/07/29 10:15:23 Initialized resource client 2020/07/29 10:15:23 Initialized channel client [fabsdk/fab] 2020/07/29 02:15:23 UTC - fab.detectDeprecatedNetworkConfig -> WARN Getting orderers from endpoint config channels.orderer is deprecated, use entity matchers to override orderer configuration [fabsdk/fab] 2020/07/29 02:15:23 UTC - fab.detectDeprecatedNetworkConfig -> WARN visit https://github.com/hyperledger/fabric-sdk-go/blob/master/test/fixtures/config/overrides/local_entity_matchers.yaml for samples 2020/07/29 10:15:23 Initialized fabric sdk 2020/07/29 10:15:23 Initialized resource client 2020/07/29 10:15:23 Initialized channel client 2020/07/29 10:15:23 Registered block event 2020/07/29 10:15:23 Registered filtered block event 2020/07/29 10:15:23 Listen chaincode event: .* 2020/07/29 10:15:23 Using event client to register chaincode event 2020/07/29 10:15:23 Transaction listener start 2020/07/29 10:15:23 Receive filterd block event: Number: 4 len(transactions): 1 SourceURL: grpcs://localhost:8051 2020/07/29 10:15:23 tx index 0: type: ENDORSER_TRANSACTION, txid: 1cf4108051e210c845c1f4abeb216461dd058e017e613f5f0bf288bfbbb2b807, validation code: VALID 2020/07/29 10:15:23 2020/07/29 10:15:23 Receive block event: SourceURL: grpcs://localhost:8051 Number: 4 Hash: 4fe5de4393105037dae497a0221fac5f28558e382aed79dabbbe188da2680dd5 PreviousHash: d7a5483bdf65ebaedbe133cb54538d7a1da2f6242941d63a849e50ef83b5d5a3

2020/07/29 10:15:25 Invoke chaincode response: id: 37ec1d620bd557b8f54eaf6fe59278c17de39ba0c6845249d6d37f63d13e9e8d validate: ENDORSEMENT_POLICY_FAILURE chaincode status: 200

2020/07/29 10:15:25 Invoke chaincode error: invoke chaincode error: Event Server Status Code: (10) ENDORSEMENT_POLICY_FAILURE. Description: received invalid transaction panic: Invoke chaincode error: invoke chaincode error: Event Server Status Code: (10) ENDORSEMENT_POLICY_FAILURE. Description: received invalid transaction

goroutine 1 [running]: log.Panicf(0xd3ea9e, 0x1a, 0xc0004e5e38, 0x1, 0x1) /usr/local/go/src/log/log.go:358 +0xc0 请问这个怎么解决呀

[Shitaibin]

@hehui0316 [fabsdk/fab] 2020/07/29 02:15:23 UTC - fab.detectDeprecatedNetworkConfig -> WARN Getting orderers from endpoint config channels.orderer is deprecated, use entity matchers to override orderer configuration ..... goroutine 1 [running]: log.Panicf(0xd3ea9e, 0x1a, 0xc0004e5e38, 0x1, 0x1) /usr/local/go/src/log/log.go:358 +0xc0 请问这个怎么解决呀

1. 看调用栈选择问题原因
2. 看fabric代码，搞清楚报错ENDORSEMENT_POLICY_FAILURE是什么含义，什么情况下会报错