Installing and Instantiating a Chaincode

Updated on 2023-01-16 GMT+08:00

View PDF

A chaincode must be installed on all peers in a channel and instantiated on any one peer. To use the same chaincode, channel members must specify the same name and version for the chaincode during chaincode installation.

NOTICE:

The chaincode must be installed by the inviting party and all invitees (in this demo, invitees A and B).
The chaincode name and version specified by all parties must be consistent.
The chaincode can be instantiated by any member in the consortium.

Installing a Chaincode

Log in to the BCS console.
In the navigation pane on the left, click Instance Management.
On a target instance card, click Manage Blockchain.
On the login page, enter the username and password, and click Log In.
NOTE:
- The username is admin, and the password is the Blockchain Mgmt. Initial Password set when you created the BCS instance. If you have not set this password, use the resource access initial password. For security purposes, change the password periodically.
- If you use the Internet Explorer, you may fail to open the Blockchain Management login page and see a message indicating that the certificate is untrusted. In this case, you can click here to resolve the problem.
Click Install Chaincode in the upper left corner of the page.

Enter the chaincode name and version number, select the peers where the chaincode is to be installed, specify the programming language of the chaincode, and add the chaincode file, as described in Table 1.

**Table 1** Parameters
Parameter	Setting
Chaincode Name	Enter fabbank.
Chaincode Version	Enter 1.0.
Ledger Storage	File database (GoLevelDB)
Select All Peers	Select the checkbox.
Organization & Peer	All peers have been selected automatically.
Language	Select Golang.
Chaincode File	Log in to the BCS console and choose Use Cases. Download Bank_Demo in the SDK Demo for a Bank Consortium Blockchain area.
Chaincode Description	Enter a description of the chaincode.
Code Security Check	This option is displayed only when the chaincode language is Golang. Enable this option to check chaincode security.

Click Install to install the chaincode.

Instantiating a Chaincode

After installing the chaincode, click Instantiate in the Operation column of the chaincode list.

Specify the channel for instantiation, chaincode version, endorsement policy, endorsing organizations, and chaincode parameters, as described in Table 2.

**Table 2** Parameters
Parameter	Setting
Chaincode Name	Enter fabbank.
Channel	Select testchannel.
Chaincode Version	Select 1.0.
Initialization Function	Enter init.
Chaincode Parameters	-
Endorsement Policy	Select Endorsement from any of the following organizations.
Endorsing Organizations	Select all the three organizations.
Privacy Protection	Select No.

Click Instantiate.

Wait for 2 to 3 minutes and refresh the page. Click View more to check the instantiation status.

Parent topic: Building a Bank Consortium Blockchain Using Enhanced Hyperledger Fabric

Previous topic: Joining a Consortium

Next topic: Configuring the Application

Feedback

Was this page helpful?

Helpful Not helpful

Provide feedback

Thank you very much for your feedback. We will continue working to improve the documentation.See the reply and handling status in My Cloud VOC.

The system is busy. Please try again later.

Which of the following issues have you encountered?

Content is inconsistent with the product UI

Unclear descriptions

Lack of examples or code

Incorrect steps

Can't find what I need

Lack of best practices

Feedback (optional)

0/500

Select at least one type of issue, and enter your comments or suggestions.

Enter a maximum of 500 characters.

Submit Cancel

For any further questions, feel free to contact us through the chatbot.

Chatbot