权限管理
权限管理机制是 hyperledger fabric 项目的一大特色。下面给出使用权限管理的一个应用案例。
启动集群
首先现在相关镜像。
$ docker pull yeasy/hyperledger:latest
$ docker tag yeasy/hyperledger:latest hyperledger/fabric-baseimage:latest
$ docker pull yeasy/hyperledger-peer:latest
$ docker pull yeasy/hyperledger-membersrvc:latest进入 hyperledger 项目，启动带成员管理的 PBFT 集群。
$ git clone https://github.com/yeasy/docker-compose-files
$ cd docker-compose-files/hyperledger
$ docker-compose -f docker-compose-with-membersrvc.yml up用户登陆
当启用了权限管理后，首先需要登录，例如以内置账户 jim 账户登录。
登录 vp0，并执行登录命令。
$ docker exec -it pbft_vp0_1 bash# peer network login jim08:23:13.604 [networkCmd] networkLogin -> INFO 001 CLI client login...08:23:13.604 [networkCmd] networkLogin -> INFO 002 Local data store for client loginToken: /var/hyperledger/production/client/Enter password for user 'jim': 6avZQLwcUe9b也可以用 REST 方式：
POST HOST:7050/registrarRequest：
{"enrollId": "jim","enrollSecret": "6avZQLwcUe9b"}Response：
{"OK": "User jim is already logged in."}CHAINCODE 部署
登录之后，chaincode 的部署、调用等操作与之前类似，只是需要通过 -u 选项来指定用户名。
在 vp0 上执行命令：
# peer chaincode deploy -u jim -p github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02 -c '{"Function":"init", "Args": ["a","100", "b", "200"]}'也可以通过 REST 方式进行：
POST HOST:7050/chaincodeRequest：
{"jsonrpc": "2.0","method": "deploy","params": {"type": 1,"chaincodeID":{"path":"github.com/hyperledger/fabric/examples/chaincode/go/chaincode_example02"},"ctorMsg": {"function":"init","args":["a", "1000", "b", "2000"]},"secureContext": "jim"},"id": 1}Response：
{"jsonrpc": "2.0","result": {"status": "OK","message": "980d4bb7f69578592e5775a6da86d81a221887817d7164d3e9d4d4df1c981440abf9a61417eaf8ad6f7fc79893da36de2cf4709131e9af39bca6ebc2e5a1cd9d"},"id": 1}CHAINCODE 调用
在账户 a、b 之间进行转账 10 元的操作。
$ peer chaincode invoke -u jim -n 980d4bb7f69578592e5775a6da86d81a221887817d7164d3e9d4d4df1c981440abf9a61417eaf8ad6f7fc79893da36de2cf4709131e9af39bca6ebc2e5a1cd9d -c '{"Function": "invoke", "Args": ["a", "b", "10"]}'也可以通过 REST 方式进行：
POST HOST:7050/chaincodeRequest：
{"jsonrpc": "2.0","method": "invoke","params": {"type": 1,"chaincodeID":{"name":"980d4bb7f69578592e5775a6da86d81a221887817d7164d3e9d4d4df1c981440abf9a61417eaf8ad6f7fc79893da36de2cf4709131e9af39bca6ebc2e5a1cd9d"},"ctorMsg": {"function":"invoke","args":["a", "b", "100"]},"secureContext": "jim"},"id": 3}Response：
{"jsonrpc": "2.0","result": {"status": "OK","message": "66308740-a2c5-4a60-81f1-778dbed49cc3"},"id": 3}CHAINCODE 查询
查询 a 账户的余额。
也可以通过 REST 方式进行：
POST HOST:7050/chaincodeRequest：
{"jsonrpc": "2.0","method": "query","params": {"type": 1,"chaincodeID":{"name":"980d4bb7f69578592e5775a6da86d81a221887817d7164d3e9d4d4df1c981440abf9a61417eaf8ad6f7fc79893da36de2cf4709131e9af39bca6ebc2e5a1cd9d"},"ctorMsg": {"function":"query","args":["a"]},"secureContext": "jim"},"id": 5}Response：
{"jsonrpc": "2.0","result": {"status": "OK","message": "900"},"id": 5}区块信息查询
URL：
GET HOST:7050/chain/blocks/2Response：
{"transactions": [{"type": 2,"chaincodeID": "EoABMjhiYjJiMjMxNjE3MWE3MDZiYjI4MTBlYzM1ZDA5NWY0MzA4NzdiZjQ0M2YxMDYxZWYwZjYwYmJlNzUzZWQ0NDA3MDBhNTMxMmMxNjM5MGQzYjMwMTk5ZmU5NDY1YzNiNzVkNTk0NDM1OGNhYWUwMWNhODFlZjI4MTI4YTFiZmI=","payload": "Cp0BCAESgwESgAEyOGJiMmIyMzE2MTcxYTcwNmJiMjgxMGVjMzVkMDk1ZjQzMDg3N2JmNDQzZjEwNjFlZjBmNjBiYmU3NTNlZDQ0MDcwMGE1MzEyYzE2MzkwZDNiMzAxOTlmZTk0NjVjM2I3NWQ1OTQ0MzU4Y2FhZTAxY2E4MWVmMjgxMjhhMWJmYhoTCgZpbnZva2USAWESAWISAzEwMA==","uuid": "2b3b6cf3-9887-4dd5-8f2e-3634ec9c719a","timestamp": {"seconds": 1466577447,"nanos": 399637431},"nonce": "5AeA6S1odhPIDiGjFTFG8ttcihOoNNsh","cert": "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","signature": "MEYCIQDob3NqdrfwlSGhi+zz+Ypl7S9QQ07RIFr8nV92e8KDNgIhANIljz4tRS8vwQk01hTemNQFJX2zMI6DhSUFZivbbtoR"}],"stateHash": "7YUoVvYnMLHbLf47uTixLtkjF6xM9DuvgSWC92MbOUzk09xhcRBBLZqe5FvJElgZemELBOcuIFnubL0LiGH0yw==","previousBlockHash": "On4BlpqCYNpugUKluqvOcbvkr3TAQxmlISLdd6qrONtIgmQ4iUDeWxAA9lUCceZfF8tke8A0Wy7m9tksNpKodw==","consensusMetadata": "CAI=","nonHashData": {"localLedgerCommitTimestamp": {"seconds": 1466577447,"nanos": 653618964},"transactionResults": [{"uuid": "2b3b6cf3-9887-4dd5-8f2e-3634ec9c719a"}]}}
试卷)