Tutorial: Using applications in Azure Blockchain Workbench
You can use Blockchain Workbench to create and take actions on contracts. You can also view contract details such as status and transaction history.
You'll learn how to:
- Create a new contract
- Take an action on a contract
If you don't have an Azure subscription, create a free account before you begin.
Prerequisites
- A Blockchain Workbench deployment. For more information, see Azure Blockchain Workbench deployment for details on deployment
- A deployed blockchain application in Blockchain Workbench. See Create a blockchain application in Azure Blockchain Workbench
Open the Blockchain Workbench in your browser.
You need to sign in as a member of the Blockchain Workbench. If there are no applications listed, you are a member of Blockchain Workbench but not a member of any applications. The Blockchain Workbench administrator can assign members to applications.
Create new contract
To create a new contract, you need to be a member specified as a contract initiator. For information defining application roles and initiators for the contract, see workflows in the configuration overview. For information on assigning members to application roles, see add a member to application.
In Blockchain Workbench application section, select the application tile that contains the contract you want to create. A list of active contracts is displayed.
To create a new contract, select New contract.
The New contract pane is displayed. Specify the initial parameters values. Select Create.
The newly created contract is displayed in the list with the other active contracts.
Take action on contract
Depending on the state the contract is in, members can take actions to transition to the next state of the contract. Actions are defined as transitions within a state. Members belonging to an allowed application or instance role for the transition can take the action.
In Blockchain Workbench application section, select the application tile that contains the contract to take the action.
Select the contract in the list. Details about the contract are displayed in different sections.
Section Description Status Lists the current progress within the contract stages Details The current values of the contract Action Details about the last action Activity Transaction history of the contract In the Action section, select Take action.
The details about the current state of the contract are displayed in a pane. Choose the action you want to take in the drop-down.
Select Take action to initiate the action.
If parameters are required for the action, specify the values for the action.
Select Take action to execute the action.