Hyperledger Questions

Is there a way to invoke setendorsingpeers() when calling contract.evaluatetransaction()? is there any other way to

I am able to configure hyperledger fabric and kubernetes with cli. but now i want to configure hyperledger fabric node sdk with kubernetes. i have

This is the chaincode (node.js), which returns the json po as buffer to the fabric middleware (node sdk) async querypo(ctx,

I'm currently trying to evaluate the requester mspid to authorize a specific list of members being able to request a function on chaincode, but

I am working in a company where we are using the hyperledger fabric to build our application. we have been using the fabric ca till now. now for

I have the transaction code in hyperledger composer. how to print all the console statements when the transaction called from the nodejs

I have a hyperledger fabric testnet with 2 orgs, 3 peers in org1 and 2 peers in org2. the peer0 of each organization is the anchor peer.

I have emitted a event after added asset. //adding data in asset done . . var eventdata =

I am trying to check the condition using if condition before updating the asset. but i am not able to do the same. i need to check if property

I'm working with the nodejs fabric-shim library and i'm wondering if the

I have my hyperledger fabric working with the docker containers up. i have my hyperledger client, writte in node.js, using the fabric node

I'm following the hyperledger-fabric guide to create first network example, as prerequisites it asks for nodejs 8.x versions. my pc already have

I'm trying to understand the way a hyperledger state should be used. i want to develop a simple blockchain network for voting. and as far as i

I am developing a simple-wallet for deposit money webapp on hyperledger sawtooth. i want the amount to be deposited after specific time interval.

I am trying to create hyperledger chaincode using nodejs and fabric-shim is new to me. i am trying to fetch history of an asset using

In my code, a function is returning a protobuf object and i want to save it in a file xyz.pb. when i am trying to save it using

Problem: i have created a hyperledger fabric network with six organizations 2 peers for each. after running the network i

I have developed node.js chaincode in dev mode by following these three steps peer chaincode install -n {} -v {} -p {} -l

I am trying to install & upgrade a chaincode using the node-sdk from hyperledger fabric. however i seem to be missing something. i am

This is a follow-up question to the one which i asked

I am currently emitting an event from my chaincode when adding an asset. async addrequestnode(ctx, sampleassetid, sampledata) {

In my chaincode i am emitting an event with the following command ctx.stub.setevent('sampleevent', 'somedata');

Async changecarowner(ctx, carnumber, newowner) { const carasbytes = await ctx.stub.getstate(carnumber); if (!carasbytes

I am developing a blockchain network using hyperledger fabric (1.4) and i wanted to know if there's any user authentication mechanism for fabric.

Since more than one month, i am working on creating a multi organization hyperledger fabric application. i started with composer, used

I have successfully installed and started the business network using composer.i have installed and started using these commands:

I have a hyperledger fabric network deployed in gcp. i use fabric node sdk to communicate to the network. when there's no activity

I am generating tokens for transactions (like transferring data). however, i want to invalidate the token after one transaction. the user should

I am designing the business network and i am implementing the logic.js for the network on hyperledger composer bluemix, i want to create an asset

I develop an application on hyperledger fabric with "ibm‌ blockchain platform" extension and nodejs. i use "fabric-ca-client v1.3.0" module to

I have a multi-org fabric setup which runs along with composer server. things work quite fine normally. however, infrequently i face this issue

When i call a transaction named intentforsale i get the 'error: invalid or missing identifier for type propertylisting in namespace

I successfully completed a hyperledger composer and working it well. i just created explorer for the same network using the git

I am working on hyper ledger composer based project. i am writing chain code using javascript. but i do not want to use automated generated rest

I would like to know how to have two chaincode scripts written in node.js in the same folder. i'm using the fabcar network, i basically made a

I followed this tutorial:

I am generating front-end of my hyperledger-composer business network in angular4 by using the following command yo

I'm following the official document:

Is there any way in which i can get historian for a particular participant in hyperledger-composer using node api? i am developing an

Let's suppose the following network architecture: a -> chaincode1 -> fabcar

I get the below error when i try to create channel on a fabric 1.1. is there a workaround to use the 1.2 sdk for a fabric 1.1 network?

I try to convert to node.js code into golang code. this is my sample json. { "result": { "birthinfo": {

I'm trying to view the input values given to a transaction with transaction id, i could get response like resource

For querying in logic.js i can use await query('selectcommoditieswithhighquantity') but how can i do that if i

I have this hyperledger composer query where two values are passed in _$option and _$trader. query

I am trying to implement a transaction processor in javascript sdk based on the following example

Scenario: hyperledger fabric: v2.2.x what is done? *note: docker based development is

I want to use the sawtooth-sdk, and the guide code

When i run the e2e-2orgs demo in fabric-sdk-java-master, everything seemed ok. docker-compose.yaml:

I am recreating a hyperledger fabric network. i have deleted all the docker volumes,docker images related to the chaincode, docker

The following use case would it be possible ? at a nation level, the government wants its regional educational direction to build a system

I believe it is possible to create a cryptocurrency with hyperledger (though a bit unconventional, perhaps). as in

I have simple question about hyperledger fabric. so here is my question: i know that for committing peers (ordinary peers) it's not 100%