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Category: hyperledger-fabric

Getting Contract Logs from IBM Blockchain Platform

Getting Contract Logs from IBM Blockchain Platform

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The Problem: with IBM Blockchain Platform running in a Kubernetes cluster how do you get the logs to find out what happened with your contract? Setup This is command line stuff, so make sure that you have the kubectl command installed and it’s able to access the K8S Cluster. Or alternatively use the ‘web cli’.. your choice. Access either from the ‘Actions…’ menu on the cluster summary page. The steps What is the k8s namespace? Within K8S, each IBP instance…

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Early Access Coffee on the Blockchain

Early Access Coffee on the Blockchain

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Supply chains are one great usecase for Blockchain and DLT; tracing coffee beans to be able to assert the provence of their origin is just one example. It’s also a very bad pun to bridge to Java (the language). Being a long time Java Developer (Java 1.1.3 anybody?) I’m pleased to be able to write this short guide to using Java with the Fabric Smart Contract programming model. The updated programming model was first delivered within Hyperledger Fabric in Node.js…

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Getting setup for development (CentOS)

Getting setup for development (CentOS)

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At work we’ll often do ‘group testing’ sessions or ‘internal hackathons’. What struck me about the last one was that setting up your development environment can surprisingly tricky, especailly if it’s for a style of development or langage you don’t generally use. TL;DR: gist of commands What are we developing for? The setup we are going for here, is a Node.js and Java environment using VSCode – with a view to using the IBM Blockchain Platform extension for writing applications…

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