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
0
votes
1 answer
Deploying composer-rest-server api on ibm cloud -CARD NOT FOUND - {$PORT}
I'm trying to deploy a composer-rest-server on IBM cloud, unfortunately, I'm facing many errors and so far I couldn't find solutions online.
I used this tutorial for the deployment:…
Paris Mollo
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0 answers
Updating composer file -- (status: 500, message: could not find chaincode with name 'xxx')
I'm trying to update a .bna file, however, I'm facing this issue when I run the following command :
composer network upgrade -c PeerAdmin@hlfv1 -n xxx -V 0.0.2
it says the following :
Upgrading business network definition. This may take a…
Paris Mollo
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0
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1 answer
Error while extending the Hyperledger fabric fabcar example with additional peers
this is my first post, so I will try to be as detailed as possible and show the steps to reproduce those errors. I want to extend the given Fabcar example with additional peers but I am not able to query/invoke the extended system. If I try to query…
PhilR
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1 answer
Hyperledger composer unit testing using Cucumber. TypeError: Cannot read property 'getClassDeclaration' of null
I am using cucumber to run some unit tests on hyperledger composer.I am constantly getting this TypeError: Cannot read property 'getClassDeclaration' of null
ASSET CODE IS
asset Clicks identified by id {
o String id
o String ipAddress
o…
deenario
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- 4
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1 answer
Is it possible to generate dynamically transactionId for transaction in composer modelling language
Can I write like this -
transaction createAsset identified by transactionId {
o String transactionId
}
if not, then please suggest a better way.
S.Raj
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1 answer
Is anyone done Hyperledger fabric multi org in multi host using docker compose file
Is anyone done Hyperledger fabric multi org in multi host using docker compose file.
I just need to know the feasibility, if possible please share the reference material as well.
I am also tried with the docker compose commands as mentioned in this…
Kumar Mohanaraman
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0 answers
Setting up a Fabric network on multiple computers: Unable to instantiate chain code on peers of 2nd Org
I am trying to setup the balance-transfer network on multiple computers.
This is similar to the query at
unable to Instantiate any chaincodes on peers of newly Added org
However, there was no resolution to that question
My approach is described…
Surya Suresh
- 41
- 3
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Failed to deserialize creator identity, err The supplied identity is not valid, Verify() returned x509: certificate signed by unknown authority
I am trying to provide node SDK's for my existing blockchain application(modified balance transfer). i started my node server and while query or invoke the transaction using the restclient/postman, i am facing error as mentioned below in the node…
Kumar Mohanaraman
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4 answers
What are the purposes and use cases of Events in Hyperledger Fabric?
I am new to developing Dapps with Hyperledger Fabric using Composer. I would like to know the purposes and use cases of Events in Hyperledger Fabric. On the Hyperledger Composer website it states:
Events can be emitted by Hyperledger Composer and…
KoushikProgrammer
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Resource names changed in REST server
I've got my Hyperledger network running for about ~3 months. Since yesterday the REST API started to throw errors. The targeted resources could not be found (404).
Apparently the REST routes changed from:
/resource
to
/org.acme.network.resource
The…
Lars
- 437
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1 answer
how to set cert when calling createChannel in Fabric Node SDK
Help me please with channel creation.
In node sdk i have
// // extract the channel config bytes from the envelope to be signed
const envelope = fs.readFileSync(`${channelConfigPath+channelName}.tx`),
channelConfig =…
Bogdan Sizov
- 131
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1 answer
How to upload a file, attach and download in corda?
I have tried to upload and send a file with the help of following link
https://github.com/corda/corda/tree/release-M14
When I tried to used it in Cordaapp example it is showing many error. Is there any simple example to upload the file and attach?…
user4473151
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1 answer
Multiple channels on Hyperledger Fabric - IBM Bluemix starter plan
I'm using "composer-cli" and attempting to test below described scenario using the composer. I use IBM blockchain starter plan.
I have 3 members(Comapny A, Company B and CompanyC). My Requirement is to create two seperate channels ( 1) "pasnbank" …
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2 answers
Decorators in Hyperledger Composer Modeling Language
I am quite new to Hyperledger Composer and I really need your help guys!
I need an asset that would be defined dynamically with N amount of properties which aren't known at this moment and would be defined by the end user.
I assume that this could…
Taras
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1 answer
How to create a blockchain network on a LAN with other computers as nodes or participants?
I have been exploring blockchain technologies for a while now. I have worked in particular with hyperledger, ethereum and quorum. Through all of these i was able to set up a test blockchain with mock local accounts. How would I be able to set up a…
Rohan Khanna
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