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
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1 answer
How to resolve timeout error while executing transactions in hyperledger fabric?
I'm trying to insert bulk data in to blockchain. For 11,000 records records the insert is happening without any fault. But if I try to insert more, Im getting the following error.
error: [client-utils.js]: sendPeersProposal - Promise is rejected:…
sasi
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0 answers
Error while initializing node sdk in hyperledger fabric
I'm trying to connect to the node SDK in hyperledger Fabric using my networkConnection.yaml for 3 organizations with 2 peers each and a kafka orderer but I get the following error:
2019-02-04T12:34:45.710Z - error: [Network]:…
Alberto Carmona
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3 answers
ENDORSEMENT_POLICY_FAILURE error on on invocation of chaincode functions
On instantiating the chaincode without specifying the endorsement policy, invocation of functions in chaincode work fine and stored data can be seen on couchdb database. But on explicitly specifying endorsement policy as "AND…
Bukks
- 408
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1 answer
fabric-sdk-go error: No peers to connect to
We are using the IBM Managed Blockchain based on fabric 1.2, and using the Go SDK @5e291d3a34f59beb9a8ae2bcbba388515648dc73. When we try to invoke the chaincode we have installed on the peers, we get a "no peers to connect to" error:
[fabsdk/fab]…
e.nikolov
- 127
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- 11
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1 answer
Hyperledger fabric network on multiple machines/nodes
We are facing issues to deploy our network on multiple machines. We want to deploy our network on local machines and wants the communications between different peers and organizations. So it is possible to use SOLO for communications. If yes then…
Hasnat Ahmed
- 15
- 6
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0 answers
how to call smart contract method from web3.js using java script
A smart contract method has already been deployed and I want to call a method using javascript. How can I do that?
contractABI = ABI json;
contractAddress = ('my addess');`
Pradeep Maurya
- 384
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- 8
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2 answers
Fabric create channel, api to replace configtxgen in a program?
I see that to create channel, one needs to use configtxgen script to create channel artifacts, genesis block and channel config binary definition. What if I need to be able to programmatically and dynamically create new channels as needed? is there…
Tara
- 549
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1 answer
Hyperledger Fabric - Copy private data from one's collection to another organization's collection
Is there any way to copy private data from one collection to another? For e.g. consider a case when you have private data and you are selling it to someone, so it goes into their collection.
The documentation says:
"Collection members may decide to…
Rahul Bairathi
- 57
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- 8
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1 answer
Failed to distribute private collection in Hyperledger Fabric
I am setting up a custom Hyperledger Fabric v1.2 blockchain network with 3 peers and 3 orgs using a private data collection. The side database is CouchDB. I use fabric-node-sdk to connect to the blockchain. The chaincode is instantiated without any…
B. Chain
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IBM Blockchain api - status endpoint
I have been working on deployment scripts for a business network via composer to IBM blockchain cloud, every example i have seen includes a request to the endpoint.
/api/v1/networks/${BLOCKCHAIN_NETWORK_ID}/sample/${BLOCKCHAIN_SAMPLE_ID}
From…
Richard Friend
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2 answers
How to initialize a Party type in Corda?
Recently I started with Corda and am a bit confused about this point.
I have a state which needs to initialize a party with some default values.
How can I do that?
Kshitiz Sharma
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0 answers
Hardware sizing for Hyperledger Fabric network/application
I am new to Hyperledger Fabric and exploring it everyday.
Have few queries regarding the transaction size, block size and ideal hardware sizing for the application deployed on the fabric network:
1) As per my understanding, transactions are stored…
Blockies
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0 answers
Error starting my business network within IBM Blockchain
I am creating a business network with IBM Blockchain.
As I try to deploy the business within its directory, it fails with the message :
Starting business network definition. This may take a minute...
Error: Error trying to start business…
marche
- 11
- 2
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0 answers
composer-rest-server - Not Found: @kyleshockey/js-yaml@^1.0.1
While trying to install composer-rest-server, I keep getting error
npm ERR! 404 Not Found: @kyleshockey/js-yaml@^1.0.1
I am trying to install latest version of composer-rest-server.
I tried to fix by first manually installing js-yaml
npm install -g…
Dushyant Kumar
- 11
- 2
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0 answers
ReferenceError: Offer is not defined - Hyperledger Composer IBM Blockchain
I'm following a tutorial for Hyperledger Composer on IBM Blockchain
I'm stuck in that error
This is the transaction:
{
"$class": "org.acme.vehicle.auction.Offer",
"bidPrice": 6000,
"listing":…
user4154276