System chaincodes are special chaincodes running as part of peer process itself instead of user chaincodes(which usually run as separate docker containers). These chaincodes are registered and deployed by the peer when peer starts up. …

DAML (Digital Asset Modelling Language) is an open-source smart contract language that allows the implementation of business logic without worrying about which DLT platform or database suits the use case. Official documentation can be found here https://docs.daml.com. Install DAML SDK by referring steps in https://docs.daml.com/getting-started/installation.html DAML Features Privacy and Fine-grained…

This article explains how to setup postgres database as the DAML ledger using community edition DAML driver for PostgreSQL provided by the Digital Asset Team. Steps: 1. Setup Postgres instance. 2. Create database user for DAML driver. In this article, `daml` is kept as username and password. 3. Setup an…

In blockchain world, currently there are number of platforms available both in public and permissioned types. Thus while developing any blockchain solutions, it requires lot of knowledge on what is possible in which platforms, thereby selecting a better platform for the given usecase. In this article, we will compare 2…

Have you tried setting up Hyperledger Fabric Network locally or in the cloud or as managed service? If yes, you may have faced several issues which might be due to infra/network/configuration issues. There are multiple channels/supports available to from fabric community to solve these issues. Here I am listing down…

Data replication is a necessity when data is very critical. Also, when there is a need to query data a lot of times, it is good to have separate replicated data storage to avoid any performance impact where there is a lot of write operations. In this article, we will…