A hash is a one way operation, so if you are trying to convert the hash back into the pre-image, it cannot be done (that's the whole point!). But you can verify that the on-chain hash matches some

Byte slices in Go can be cast directly to strings `string(bytes)` Brett Logan Software Engineer, IBM Blockchain Phone: 1-984-242-6890 E-mail: brett.t.logan@...

Hi all, I am looking for a way to check the hash on the ledger, produced by the private data collection, I use the GetPrivateDataHash function in the chaincode, which returns the hash in bytes. How

I invoke a chaincode named "A" and chaincode A invokes another chaincode named "B" by using invokeChaincode. How can I get the name(namespace) of chaincode "A" in the called chaincode "B"。Just

Hi, In version 2.0 of the node sdk for fabric it appears channel.queryBlock, channel.queryBlockByHash, channel.queryInfo and similar have been removed from fabric-network. How does one now query

Look at the Fabcar sample app in Fabric Tutorials It has CLI calls to add a car, run a query. https://hyperledger-fabric.readthedocs.io/en/release-2.0/write_first_app.html Jim

How can I call CLI commands externally... How can I make that happen?

Dear Tong, I appreciate your response. Following your recommendatios i enabled the operation for the variables in each node and right now it works fine (see first image). Other points to consider: To

Node chaincode by default is run in the hyperledger/fabric-nodeenv:<fabric version> docker image. And this image is specified in core.yaml at CORE_CHAINCODE_NODE_RUNTIME, you can modify this value to

the title says it all. Using Fabric, 2.0 Is there any way to control what version of Node will be used by the chaincode container? is there any page which lists Fabric Version | Node Version deployed

Hello I am new to Hyperledger fabric V2.0 and I am working on my first application. I generated the crypto-config folder and the channel-artifcats, but when I run the peer and orderer nodes the

Fabric does not use the REST protocol. Under the covers the CLI and other Fabric components use gRPC and protocol buffers. Postman does not support this out of the box. While you can make a tool to

hello i have made my hyperledger network and now , I want to call the CLI command with the help of REST API so that i can trigger them through POSTMAN Kindly help!!

can we use 2.1.2 of Node SDK with 2.0 of the peer and orderer or do the versions have to match?

Thanks Matthew.

Hi Rui, Fabric chaincode can be developed in go language, Java, and java script. currently python not supported. -- Thanks & Regards, Kamlesh Nagware VP Blockchain Snapper Future Tech Mobile :

Hyperledger Fabric Documentation Workgroup call - Western hemisphere When: Friday, 22 May 2020 4:00pm to 5:00pm (GMT+01:00)

Santiago, You basically just need to enable the operation port for both peer and orderer node like this For orderer node: ORDERER_OPERATIONS_LISTENADDRESS=<<Nodename or Node IP>>:<<portNumber>>

Reminder: Hyperledger Fabric Documentation Workgroup call - Western hemisphere When: Friday, 22 May 2020, 4:00pm to 5:00pm, (GMT+01:00) Europe/London Where:https://zoom.us/j/6223336701 View

Hi fabric experts, I have deployed an HFB network and then I ran the dockprom, a monitoring solution for Docker hosts and containers with Prometheus and Grafana. Right now i can mononitoring the