Corda block chain development of training camp notes 13: Deployment node

1, this section targets

We will build a node contains three in this body, a demo of the notary party corda network

Containing the command to deploy in gradle.builde file in our project:

task deployNodes(type: net.corda.plugins.Cordform, dependsOn: ['jar']) {
    nodeDefaults {
        projectCordapp { deploy = true }
    }
    node {
        name "O=Notary,L=London,C=GB"
        notary = [validating: false]
        p2pPort 10000
        cordapps = []
        rpcSettings {
            address("localhost:10001")
            adminAddress("localhost:10002")
        }
    }
    node {
        name "O=PartyA,L=London,C=GB"
        p2pPort 10003
        rpcSettings {
            address("localhost:10004")
            adminAddress("localhost:10005")
        }
        rpcUsers = [[user: "user1", password: "test", permissions: ["ALL"]]]
    }
    node {
        name "O=PartyB,L=New York,C=US"
        p2pPort 10006
        rpcSettings {
            address("localhost:10007")
            adminAddress("localhost:10008")
        }
        rpcUsers = [[user: "user1", password: "test", permissions: ["ALL"]]]
    }
    node {
        name "O=PartyC,L=Lagos,C=NG"
        p2pPort 10009
        rpcSettings {
            address("localhost:10010")
            adminAddress("localhost:10011")
        }
        rpcUsers = [[user: "user1", password: "test", permissions: ["ALL"]]]
    }
}

2, the specific embodiment

Things to do:

1. First, set up a test network node
2. Start node
3. Bonds issued by partyA node to patyB
4. View three nodes of the database, see if you can see the state

2.1 & test node deployment

windows under test node deployment & command as follows:

gradle.bat deployNodes
build\nodes\runnodes.bat

Command Linux / macOS under test & deploy nodes as follows:

./gradlew deployNodes
build/nodes/runnodes

Please be patient, I create four nodes took about 58s

If the second command execution time, there has been an error, probably not xterm installed, executed in ubuntu18.04:

sudo apt install xterm

2.2 Bonds issued

Run the following command is issued to PartyB in PartyA number of 99 bonds:

flow start IOUIssueFlow owner: PartyB, amount: 99

Here there has been such an error:

Need IOUState.class added something in a comment:

@BelongsToContract(IOUContract.class)
public class IOUState implements ContractState {

2.3 View Library

Executed in PartyA or PartyB:

run valutQuery contractStateType: bootcamp.IOUState

They will have IOUState, however, PartyC did not have any details regarding IOUState, this is the "only need to know" (tell the truth, I think this is a big drawback)

Only then saved notrary hash, it will not know the specific details of the deal, just to ensure double flowers.

So far, bootcamp completely over, ending Sahua ~

3, summary

Corda is a proprietary distributed system books:

• Node with identification
• Providing distributed data storage model
• Provide privacy p2p communication, because all communications will be encrypted

4, Contact

• Technical Documents
  • docs.corda.net
  • docs.cncorda.com (Chinese)
• Community Forums:
  • Stack Overflow: stackoverflow.com/questions/tagged/corda
• Slack exchange group:
  • cordaledger: slack.corda.net

So far, corda Sahua end! ! ! ~~~~~