Hello; In terms of parsing the history really would need to be parsed to find specific values; depending on the size you could always put the data into a different data structure, so it becomes a clas

#fabric-chaincode #chaincode #database #fabric-questions

Hello, I use Level DB and I am using GetHistoryForKey to get the history of a key which return some records. Is there an efficient way to parse the returned records in order to find some specific valu

#fabric-chaincode #chaincode #database #fabric-questions

If two transactions sent by clients in parallel have the same case_no​ then you will see MVCC read conflicts. Endorsement for both will happen before the ledger is updated and they will both see that

#fabric-chaincode #fabric

Transactions that read or modify ledger keys that are modified by other transactions in parallel will suffer MVCC read conflicts. There are details on how this works in the documentation here: https:/

#fabric-chaincode #fabric

Dear Team, We are submitting 100 transactions in parallel . All transactions are to create new asset . In the chain code , first it is checked if asset already exists . If not then only create transac

#fabric-chaincode #fabric

You are checking the commit readness with a different endorsement policy. The checkcommitreadness needs to be crafted with the same policy signature parameter. Try adding signature-policy ${SIG_POLICY

#fabric-chaincode

Hi all, I am executing this command for approving: peer lifecycle chaincode approveformyorg -o ${ORDERER0_URL} --ordererTLSHostnameOverride $ORDERER_ORG --tls true --cafile ${CA_FILE} \ --channelID ${

#fabric-chaincode

It appears that you are trying to commit an not approved definition. Check the crafted --name parameter on both commands. The checkcommitreadness is using another name definition: --name material_prov

#fabric-chaincode

Hi all, We're trying to deploy our chaincode to the test-network with 4 orgs in it. Following the "Deploy a smart contract to channel" tutorial, we got each org to approve the chaincode definition as

#fabric-chaincode

Hi All, In my chaincodes, which stored in couchDB, I have a data structure like this: const order = { orderNumber, orderItems: JSON.stringify(OrderItemObj), orderStatus } Where OrderItemObj is , e.g.

#fabric-chaincode

If you want to display the results of ledger queries in the browser, you'll need to create a backend component that interacts with Fabric. I suggest studying the REST API sample (https://github.com/hy

#fabric-chaincode

Hi, How can I query data in blockchain and populate the data in a poplist? E.g. I already have a function allowed me to bind select element with JSON array below: function populateSelect() { // THE JS

#fabric-chaincode

orderer.trade.com DNS maybe misconfigured. Why you are overriding tls hostname using the same hostname? Em ter., 4 de jan. de 2022 06:58, <pham.qtpham@...> escreveu:

#fabric-chaincode

Hi, I have error when doing approving chaincode definition for orgs. The error in the log file is: approve Approving chaincode definition for orgs... + peer lifecycle chaincode approveformyorg --connT

#fabric-chaincode

The normal CouchDB query syntax is used in Fabric, please see the CouchDB query reference at https://docs.couchdb.org/en/3.1.1/api/database/find.html. Dave Enyeart pham.qtpham---12/19/2021 05:18:34 AM

#fabric-chaincode

Hi, I followed the doc (https://hyperledger-fabric.readthedocs.io/en/latest/couchdb_as_state_database.html ) to create index as below: { "index": { "fields": ["ownerName", "paymentAmountDue"] }, "ddoc

#fabric-chaincode

Thank you guys so much, it's really helpful!

#fabric-chaincode

Hi! The chaincode has a unique identifier in the network when it is running. If a chaincode calls itself (another function) using invokeChaincode method, an error will occur. You have to call the func

#fabric-chaincode

Thanks for your attention: https://github.com/hyperledger/fabric-chaincode-java/issues/218

#fabric-chaincode

Hello; Can I suggest that you raise an issue on the github hyperledger/fabric-chaincode-java repo? Though to check that you can call `helloworld()` directly from `invokeChaincode` without having to ca

#fabric-chaincode