使用Hyperledger Composer落地项目

composer构建和部署

• 关于composer的介绍和使用可参见官方文档。

• 以下关于composer的使用时结合项目，关键步骤记录。是在配置好连接，生成bna文件后的步骤。之前步骤可移步文档学习。

• 以下东西为自己笔记形式，不够详细。如需帮助指导请邮件我（lg.json@gmail.com）

• 开发基本步骤

生成bna文件之后的步骤

• 部署基于2个组织4个节点（文档里多节点部署）

1, 开始前对docker进行了重启（目的是清除之前docker里的数据，在没有对数据持久进行挂载的时候，重启不会生成新的秘钥使用之前配好的）

/byfn.sh -m restart -s couchdb -a
rm -fr $HOME/.composer

2, 初始化业务网络,申请身份

composer network install --card PeerAdmin@byfn-network-org1 --archiveFile gome-sellers-network_0.0.12.bna
composer network install --card PeerAdmin@byfn-network-org2 --archiveFile gome-sellers-network_0.0.12.bna

composer identity request -c PeerAdmin@byfn-network-org1 -u admin -s adminpw -d gomeadmin
composer identity request -c PeerAdmin@byfn-network-org2 -u admin -s adminpw -d geliadmin

3, 启动网络

composer network start -c PeerAdmin@byfn-network-org1 -n gome-sellers-network -V 0.0.3-deploy.12 -o endorsementPolicyFile=/tmp/composer/endorsement-policy.json -A gomeadmin -C gomeadmin/admin-pub.pem -A geliadmin -C geliadmin/admin-pub.pem

4, 添加管理员card(组织1和组织2)

composer card create -p /tmp/composer/org1/byfn-network-org1.json -u gomeadmin -n gome-sellers-network -c gomeadmin/admin-pub.pem -k gomeadmin/admin-priv.pem

composer card import -f gomeadmin@gome-sellers-network.card


composer card create -p /tmp/composer/org2/byfn-network-org2.json -u geliadmin -n gome-sellers-network -c geliadmin/admin-pub.pem -k geliadmin/admin-priv.pem

composer card import -f geliadmin@gome-sellers-network.card

5,启动API

composer-rest-server -c gomeadmin@gome-sellers-network -n never -w true

6, 更新bna（测试开发阶段需要修改bna文件情况使用更新。执行一个组织上，在进行数据添加时发现会同步到其他pee容器）

composer network install --card PeerAdmin@byfn-network-org1 --archiveFile gome-sellers-network_0.0.12.bna

composer network upgrade -c PeerAdmin@byfn-network-org1 -n gome-sellers-network -V 0.0.3-deploy.12


composer network install --card PeerAdmin@byfn-network-org2 --archiveFile gome-sellers-network_0.0.12.bna

composer network upgrade -c PeerAdmin@byfn-network-org2 -n gome-sellers-network -V 0.0.3-deploy.12

7, 添加seller1用户并申请身份信息

composer participant add -c gomeadmin@gome-sellers-network -d '{"$class":"com.gomesellers.network.Seller","Id":"1", "Name":"zhulianggang","orgId":"001","orgName":"格力"}'

composer identity issue -c gomeadmin@gome-sellers-network -f seller1.card -u seller1 -a "resource:com.gomesellers.network.Seller#1"

composer card import -f seller1.card

8, 使用sell1 提交数据上链

composer transaction submit --card seller1@gome-sellers-network -d '{"$class": "org.hyperledger.composer.system.AddAsset","registryType": "Asset","registryId": "com.gomesellers.network.Order", "targetRegistry" : "resource:org.hyperledger.composer.system.AssetRegistry#com.gomesellers.network.Order", "resources": [{"$class": "com.gomesellers.network.Order","orderId":"1", "itemDesc":"MAC","channel":"gome", "itemNum":"10","createTime":"2018-5-30","sellerId":"1","sellerName":"zhulianggang","sellerOrgId":"001","sellerOrgName":"格力","sum":"888","orginOrderId":"1001"}]}'

9,添加seller2用户并申请身份

composer participant add -c gomeadmin@gome-sellers-network -d '{"$class":"com.gomesellers.network.Seller","Id":"2", "Name":"zhulg","orgId":"001","orgName":"格力"}'

composer identity issue -c gomeadmin@gome-sellers-network -f seller2.card -u seller2 -a "resource:com.gomesellers.network.Seller#2"

composer card import -f seller2.card

10, 使用sell2 提交数据上链

composer transaction submit --card seller2@gome-sellers-network -d '{"$class": "org.hyperledger.composer.system.AddAsset","registryType": "Asset","registryId": "com.gomesellers.network.Order", "targetRegistry" : "resource:org.hyperledger.composer.system.AssetRegistry#com.gomesellers.network.Order", "resources": [{"$class": "com.gomesellers.network.Order","orderId":"2", "itemDesc":"MAC","channel":"gome", "itemNum":"10","createTime":"2018-5-30","sellerId":"2","sellerName":"zhulg","sellerOrgId":"001","sellerOrgName":"格力","sum":"999","orginOrderId":"1002"}]}'

• 不同身份提交数据上链，权限控制
• 本地启动composer playground，可查看不同card
• composer network list -c seller2@gome-sellers-network 业务网络下数据
• 启动的reset api 可以执行同样操作。唯一不同的是reset api 对应身份切换好像没有。只能再生成reset api时命令行指定身份,这样的话对应提交上链就只能用命令行方式 –card 身份提交了。（需要进一步研究下这块）

11,多用户模式解决以上问题

• 最近涉及到多用户模式业务开发，composer里的多用户模式可以完全解决用户身份问题。等空了做个总结记录。