Questions tagged [hyperledger-chaincode]
448 questions
0
votes
2 answers
Is there any way that a Chaincode can interact with outside entity?
I'm writing a Hyperledger-fabric chaincode. And I wish it can get some strings from outside program and send some messages to it. I want to know if the chaincode can do this?
mageover
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- 4
0
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0 answers
Hyperledger Fabric: Error while installing the chaincode on a peer
I am trying to demonstrate the usage of Private Data in Hyperlderger Fabric as part of a PoC. I have been following the steps given in:
https://hyperledger-fabric.readthedocs.io/en/release-1.4/private_data_tutorial.html
I have been able to start the…
Akhil Kintali
- 496
- 2
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0
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1 answer
Error when invoking chaincode in hyperledger fabric
I have made my custom chaincode "mycc.js" It is successfully installed on peer. But when i Instantiate this chaincode using
peer chaincode instantiate -l node -n mycc -v v0 -C mychannel -c '{"args":["init","A","100","B","100"]}' -o…
Rohit Kumar
- 438
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0
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0 answers
Issue in creating Private data in Hyperledger Fabric
I am trying to create private data on Fabric version 1.2.0.
I have created the collections configuration file for storing private data.
[
{
"name": "collectionData",
"policy": "OR('Org1MSP.member','Org2MSP.member')",
…
HF_developer
- 3
- 3
0
votes
1 answer
Hyperledger Fabric - cannot instantiate contract as per the MagnetoCorp example
Whenever I try to instantiate a contract according to the MagnetoCorp example, I receive the following errors.
In the terminal:
2019-03-06 14:18:49.695 UTC [chaincodeCmd] InitCmdFactory -> INFO 001 Retrieved channel (mychannel) orderer endpoint:…
jonna_983
- 79
- 1
- 6
0
votes
1 answer
Unexpected end of JSON input - Hyperledger Fabric while using putState()
async changeCarOwner(ctx, carNumber, newOwner) {
const carAsBytes = await ctx.stub.getState(carNumber);
if (!carAsBytes || carAsBytes.length === 0) {
throw new Error(`${carNumber} does not exist`);
}
…
Yash Damani
- 105
- 3
- 12
0
votes
1 answer
Hyperledger Fabric - Error while Instantiating chaincode (error trying to connect to local peer: context deadline exceeded)
I am using Hyperledger Fabric v 1.3.0 and trying to deploy using swarm network on multiple hosts. I am facing an issue when trying to instantiate the chaincode. The error i get is below in the image
Chaincode Instantiate Error :
I keep getting…
Sanket
- 49
- 2
0
votes
1 answer
How to fetch Models with a property query based in Hyperledger Fabric Java chaincode
I am developing a simple Hyperledger Fabric Wallet type application in Java chaincode with basically 2 models: Wallet and MoneyTransfer. MoneyTransfer has the data, amount and ids for "fromWallet" and "targetWallet".
I have not found examples of how…
icordoba
- 1,834
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0
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2 answers
Fabric chaincode instantiation fails
Trying out the getting started guide from the HyperLedger tutorials. It is pretty basic. Starting the network is the first step. Even the first step is not working.
Looked into script "startFabric.sh". Everything goes well, until "chaincode…
Nambi
- 2,688
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- 37
-1
votes
0 answers
Fabric Chaincode Go fails to Deploy due to deserialize error
I am trying to deploy a this custom go chaincode on a fabric sample test-network it fails at getMSPID and gives
undefined: msp.DeserializeIdentity
while running the command
./network.sh deployCC -ccn basic -ccp ../asset-transfer-basic/chaincode-go/…
Vishnu Ezhuthachan
- 79
- 9
-1
votes
0 answers
Error - configure MSP failed: sanitizeCert failed the supplied identity is not valid: x509: certificate signed by unknown authority
I was following minifab documentation and did the following steps:
minifab netup -e 7100 -i 2.4 -l go
minifab create,join
minifab install,approve,commit,initialize,discover,profilegen
minifab apprun -l go
Although, I get this output in the…
Pushp Vashisht
- 874
- 3
- 9
- 17
-1
votes
0 answers
Error: chaincode install failed with status: 500 - Cannot Install Chain code on my network
I've been trying to setup hyperledger fabric for weeks and this step is blocking me from using it:
I start the network and create a channel and when I deploy the chain code it give the error below:
Error: chaincode install failed with status: 500 -…
Liftedsafe01
- 99
-1
votes
1 answer
How to store Log File data on Hyperledger Blockchain?
I want to store Log file data on the private blockchain Hyperledger fabric.
Please tell me is it possible?
If yes, the what steps I need to follow? and what are the steps?
To store Log data Line by line on Hyperledger fabric
Aviral
- 1
- 1
-1
votes
1 answer
No peers defined in the channel that have the ledger query role. Failed to execute the transaction
No peers defined in the channel that have the ledger query role. Failed to execute the transaction: Error: No peers defined in the channel that have the ledger query role.
When I remove particular chaincode in the start.sh file, It is working fine.…
-1
votes
1 answer
Can a chaincode in hyperladger have its own certificate for signing transactions? If it can, then how
The task is to transfer assets from fabric to another blockchain. For the unlock/lock token contract, it is necessary to come up with a place to store tokens for the time of their blocking. I decided to store them on the client's account. The bottom…
Hacer
- 1