IBM Blockchain Platform provides a blockchain-as-a-service (BaaS) offering that allows blockchain components to be deployed in multiple cloud environments.
Questions tagged [ibm-blockchain]
249 questions
6
votes
1 answer
Can we deploy same ERC20-token on different blockchains?
I want to deploy my own ERC-20 token on different blockchains, so is there any possibility to deploy the same token contract on different blockchains. If we do that we can't give the same name and symbol for three blockchains. can anybody tell me…
Gopal Gurram
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6
votes
2 answers
Using HyperLedger Fabric with C++ Application
So I am considering HyperLedger Fabric to use with an application I have written in C++. From my understanding, the interactions i.e. posting retrieving data is all done in chaincode, in all of the examples I have seen this is invoked by using the…
Young_Torso
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6
votes
3 answers
Data storage within hyperledger
I have started learning hyperledger. Became familiarised with it by creating a sample app using the composer playground. My doubt is regarding the decentralized storage using hyperledger. I have read some few docs which mentions about :
Saving the…
Sooraj
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4
votes
2 answers
Composer network install: ERROR no valid responses from any peers
I'm working on the hyperledger blockchain on Ubuntu 18-04 LTS via this tuto hyperledger.github.io/composer/latest/tutorials/developer-tutorial . I have installed all the pre-requisites and in this step of running "composer network install", I faced…
Amine Kaabar
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4
votes
3 answers
Cross-ledger communication between Hyperledger Fabric and Hyperledger Indy
Is it possible to have a cross-ledger identity management between hyperledger fabric and indy?
Is it possible to communicate between Hyperledger Fabric and Hyperledger Indy?
Can I read the data from Fabric and store it in Indy and vice-versa?
My…
Abhinay B
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4
votes
0 answers
Hyperledger Fabric - Chaincode Invoke Version (for client version variations)
The peer chaincode invoke command does not accept a version flag:
$ peer chaincode invoke --help
Invoke the specified chaincode. It will try to commit the endorsed transaction to the network.
Usage:
peer chaincode invoke [flags]
Flags:
-C,…
sean
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4
votes
0 answers
HYPERLEDGER : Error While Starting Business Network
I am researching on Hyperledger. After going through the basic tutorials and documentation, I have started setting up a Blockchain Business Network With Hyperledger Fabric & Composer Running on Multiple Physical Machine as described on…
csLijo
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4
votes
2 answers
chaincode in hyperledger composer vs chaincode in hyperleger fabric?
does same functionality can be achieved by writing chaincode with javascript in hyperledger composer as writing chaincode with go in Hyperledger fabric?
and What are the limitations and benefits of writing chaincode in JS as compared to writing in…
himanshu_chawla
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4
votes
6 answers
Hyperledger Composer Incompatible versions error and the versions are the same
Executing:
composer network ping -n calma-network -p hlfv1 -i admin -s adminpw
I receive the following error:
Error: Error trying to ping. Error: Composer runtime (0.8.0) is not compatible with client (0.11.0)
Command failed
The versions look the…
J.F.
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3
votes
1 answer
Can putState() and putPrivateData() be used in the same chaincode?
I understand that using a putState() in a transaction would be logged in the ledger, where as putPrivateData() would result in a hash being stored on the ledger. What happens if both are used in one transaction? Would the private data be viewable on…
mattysimpson2
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votes
0 answers
Is there any way to access couchDB url used in IBM blockchain cloud?
I have deployed an instance of Blockchain database in IBM cloud. It uses hyperledger fabric 1.2.1 and couchDB as a database. Is there any way to access the couchDB web based administration console?
Ajaya Mandal
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3
votes
2 answers
Composer playground unable to load sample business networks
I am running composer playground locally and while I am connected to the Internet, it is unable to load the sample business networks when I attempt to deploy a new business network. I get following error message:
Error: could not get any sample…
Pranav Vyas
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3
votes
2 answers
Is hyperledger sawtooth under apache or intel corporation?
Hyperledger sawtooth is maintained by Apache or Inter corporation?
At the footer there is intel corporation, if we want to move the project to production which is built on Hyperledger sawtooth, do we need to pay to intel?
btc user
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2
votes
2 answers
What is the blockToLive property in implicit private data collection in Hyperledger Fabric?
In my chaincode I am writing data in multiple implicit private collections (e.g. _implicit_org_Org1MSP), but I couldn't find any information about the default blockToLive value used in the implicit collections.
My intent is to keep the data forever,…
Francesco Moca
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2
votes
1 answer
How to connect a Go client application to the IBM VS Code Fabric Extension?
I am working on some projects with Hyperledger Fabric, currently using the IBM VS Code Extension. The chaincode is written in Go, as is the client application which provides a RESTful API, using the Go Fabric SDK. However, I am having trouble…
Chris Sargent
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