Skip to content
master
Switch branches/tags
Code

Latest commit

 

Git stats

Files

Permalink
Failed to load latest commit information.
Type
Name
Latest commit message
Commit time
 
 
 
 
 
 
lib
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

State Upgrades CorDapp

This CorDapp shows how to upgrade a state without upgrading the Contract. The Upgraded state will have an additional member variable of type Int.

Pre-requisites:

See https://docs.corda.net/getting-set-up.html.

Usage

Running the nodes:

See https://docs.corda.net/tutorial-cordapp.html#running-the-example-cordapp.

Upgrading the State:

Run the following command from the project's root folder:

  • Unix/Mac OSX: ./gradlew runUpgradeStateClient
  • Windows: gradlew runUpgradeStateClient

Afte upgrading the state, the client will fetch the new state from the vault and print the new upgraded state:

[StateAndRef(state=TransactionState(data=NewState(a=O=PartyB, L=New York, C=US, b=O=PartyA, L=London, C=GB, value=0),contract=com.upgrade.UpgradeState, notary=O=Notary Service, L=Zurich, C=CH,encumbrance=null,constraint=HashAttachmentConstraint(attachmentId=8710C495B07B0FF933A8FA41A92FC9AB9D86ADB54CB8382CC441427FCE3919D7)), ref=8989BFF3BEDE0E01A7A0A052D03F8352BBC8573C3BBA6B412D4A9B481A423B10(0))]I 21:29:23 1 UpgradeStateClient.main -TransactionState(data=NewState(a=O=PartyB, L=New York, C=US, b=O=PartyA, L=London, C=GB, value=0), contract=com.upgrade.UpgradeState, notary=O=Notary Service, L=Zurich, C=CH, encumbrance=null,constraint=HashAttachmentConstraint(attachmentId=8710C495B07B0FF933A8FA41A92FC9AB9D86ADB54CB8382CC441427FCE3919D7))

About

CorDapp to demonstrate State upgrades post deployment

Topics

Resources

License

Releases

No releases published

Packages

No packages published

Languages