Installing the development environment

The following are the installation commands for developing the environment:

Installing the CLI tools:

      npm install -g composer-cli@0.20

Installing composer-rest-server:

      npm install -g composer-rest-server@0.20

Installing Hyperledger Composer generator:

      npm install -g generator-hyperledger-composer@0.20

Installing Yeoman:

      npm install -g yo

Installing playground:

      npm install -g composer-playground

Installing fabric runtime:

Download and install fabric runtime for the composer as follows:

      mkdir ~/fabric-devserver && cd ~/fabric-devserver
      curl -O https://raw.githubusercontent.com/hyperledger/composer-
      tools/master/packages/fabric-dev-servers/fabric-dev-servers.zip
      unzip fabric-dev-servers.zip
      export FABRIC_VERSION=hlfv12
      ./downloadFabric.sh

At this step, you have installed everything required for the typical composer development environment.