March 2019
Intermediate to advanced
636 pages
27h 50m
English
book
Blockchain Development with Hyperledger
by Salman A. Baset, Luc Desrosiers, Nitin Gaur, Petr Novotny
Content preview from Blockchain Development with Hyperledger
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Upgrading chaincode and endorsement policy on the trade channel
Now we are ready to carry out the upgrade process, which will require two steps:
- The installation of the new version of chaincode on the network peers
- The upgrade of the chaincode and endorsement policy on the channel
The code to perform these steps can be found in middleware/upgrade-chaincode.js and simply involves calling functions we have already implemented (see Chapter 5, Exposing Network Assets and Transactions). The following code snippet shows what we need to do for installation:
var Constants = require('./constants.js'); var installCC = require('./install-chaincode.js'); Constants.networkConfig = './config_upgrade.json'; Constants.TRANSACTION_ENDORSEMENT_POLICY = Constants.ALL_FIVE_ORG_MEMBERS; ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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