@hyperledger/cactus-example-supply-chain-backend

Hyperledger Cactus Example - Supply Chain App

Usage

• Execute the following from:

  docker run \
    --rm \
    --privileged \
    -p 3000:3000 \
    -p 3100:3100 \
    -p 3200:3200 \
    -p 4000:4000 \
    -p 4100:4100 \
    -p 4200:4200 \
    ghcr.io/hyperledger/cactus-example-supply-chain-app:2024-03-08--pr-3059-1
  

• Observe the example application pulling up in the logs
  • the test ledger containers,
  • a test consortium with multiple members and their Cactus nodes
• Wait for the output to show the message INFO (api-server): Cactus Cockpit reachable http://127.0.0.1:3200
• Visit http://127.0.0.1:3200 in your web browser with Javascript enabled

Building and running the container locally

# Change directories to the project root

# Build the docker image and tag it as "scaeb" for supply chain app example backend
DOCKER_BUILDKIT=1 docker build --file \
  ./examples/cactus-example-supply-chain-backend/Dockerfile \
  . \
  --tag scaeb \
  --tag ghcr.io/hyperledger/cactus-example-supply-chain-app:$(git describe --contains --all HEAD)_$(git rev-parse --short HEAD)_$(date -u +"%Y-%m-%dT%H-%M-%SZ")

# Run the built image with ports mapped to the host machine as you see fit
# The --privileged flag is required because we use Docker-in-Docker for pulling
# up ledger containers from within the container in order to have the example
# be completely self-contained where you don't need to worry about running
# multiple different ledgers jus this one container.
docker run --rm -it --privileged -p 3000:3000 -p 3100:3100 -p 3200:3200 -p 4000:4000 -p 4100:4100 -p 4200:4200 scaeb

Building the image with a specific npm package version:

DOCKER_BUILDKIT=1 docker build \
  --build-arg NPM_PKG_VERSION=jwt-supply-chain \
  --file ./examples/cactus-example-supply-chain-backend/Dockerfile \
  --tag scaeb \
  ./

Running the Example Application Locally

Make sure you have all the dependencies set up as explained in BUILD.md

On the terminal, issue the following commands:

• npm run enable-corepack
• npm run configure
• yarn start:example-supply-chain

Debugging the Example Application Locally

On the terminal, issue the following commands (steps 1 to 6) and then perform the rest of the steps manually.

• npm run enable-corepack
• yarn run configure
• yarn build:dev
• cd ./examples/cactus-example-supply-chain-backend/
• yarn install
• cd ../../
• Locate the .vscode/template.launch.json file
• Within that file locate the entry named "Example: Supply Chain App"
• Copy the VSCode debug definition object from 2) to your .vscode/launch.json file
• At this point the VSCode Run and Debug panel on the left should have an option also titled "Example: Supply Chain App" which starts the application
• When the application finishes loading, the JWT token generated is displayed on the terminal
• Visit http://localhost:3200 in a web browser with Javascript enabled and insert the token when prompted

Live Reloading the GUI Application

• npm run enable-corepack
• npm run configure
• yarn build:dev
• Locate the .vscode/template.launch.json file
• Within that file locate the entry named "Example: Supply Chain App"
• Copy the VSCode debug definition object from 2) to your .vscode/launch.json file
• At this point the VSCode Run and Debug panel on the left should have an option also titled "Example: Supply Chain App" which starts the application
• cd ./examples/cactus-example-supply-chain-frontend/
• yarn serve:proxy
• When the application finishes loading, the JWT token generated is displayed on the terminal
• Visit http://localhost:8000 in a web browser with Javascript enabled and insert the token when prompted
• At this point if you modify the source code of the GUI application under the ./examples/cactus-example-supply-chain-frontend/ path it will automatically reload the browser window (you will need to paste in the JWT again when this happens)