Tools, FAQ, Tutorials:
Verify Blockchain on the Channel
How to Verify Blockchain on the Channel?
✍: FYIcenter.com
Since all transactions (changes of assets managed by chaincodes)
are stored in the blockchain shared by all peers of the channel,
you can use the "peer channel" CLI command to look at them.
1. Connect to CLI container:
$ docker exec -it cli bash root@262918fdcbc0:/opt/gopath/src/github.com/hyperledger/fabric/peer# cd root@262918fdcbc0:~#
2. Get blockchain information of the channel:
root@262918fdcbc0:~# peer channel getinfo -c mychannel [channelCmd] InitCmdFactory -> INFO 001 Endorser and orderer connections initialized Blockchain info: {"height":5,"currentBlockHash":"LEA0YQbIFIL/MdR+ii2Z4SrYSqaYs6lYpRDDSzjhe7U=", "previousBlockHash":"SiJr3cuCgeCySsnEIEuwdPQgUw9esibfWjooit+Oo58="}
We have 6 blocks in the blockchain.
3. Fetch the last block:
root@262918fdcbc0:~# peer channel fetch newest ./newest.block -c mychannel root@262918fdcbc0:~# ls -l -rw-r--r-- 1 root root 5815 Apr 1 16:43 newest.block
See next tutorial on how to parse the content of a block file.
⇒ Read Block Data in Blockchain
⇐ Verify World State in CouchDB
2020-02-20, 1062🔥, 0💬
Popular Posts:
How to add images to my EPUB books Images can be added into book content using the XHTML "img" eleme...
How to Instantiate Chaincode on BYFN Channel? You can follow this tutorial to Instantiate Chaincode ...
What is the Azure AD v1.0 OpenID Metadata Document? Azure AD v1.0 OpenID Metadata Document is an onl...
What Azure AD App Registration Manifest? Azure AD App Registration Manifest is JSON file that contai...
Where to find tutorials on Python programming language? I want to learn Python. Here is a large coll...