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Running the Heart Disease Evaluation Demo

This demo performs a heart disease evaluation based on input parameters. Three clients are available: batch command line client, interactive command line client, and GUI client.

Using the Heart Disease Evaluation Batch Command Line Client

The command line client, Demo.py, runs a set of pre-built JSON requests. To run, follow the instructions in the "Testing" section of the build document. You may run the CLI demo in standalone mode or in a Docker container.

Using the Heart Disease Evaluation Interactive Command Line Client

The command line client generic_client.py allows you to submit requests on the command line.

  1. If needed, update the Ethereum account and direct registry contract information in docker/Dockerfile.tcf-dev and examples/common/python/connectors/tcf_connector.toml
  2. Follow instructions in the "Docker-based Build and Execution" section of the build document through step 5 (activating a virtual environment)
  3. Terminal 1 is running the Avalon Enclave Manager and Listener with docker-compose . Terminal 2 is running the Docker container shell
  4. In Terminal 2, set environment variable WALLET_PRIVATE_KEY if not set. This should match the value in file docker/Dockerfile.tcf-dev from step 3 above: 
    export WALLET_PRIVATE_KEY="B413189C95B48737AE2D9AF4CAE97EB03F4DE40599DF8E6C89DCE4C2E2CBA8DE"
  5. In Terminal 2 run cd $TCF_HOME/examples/apps/generic_client
  6. In Terminal 2, run 
    ./generic_client.py --workload_id "heart-disease-eval" \
    --in_data "Data: 25 10 1 67 102 125 1 95 5 10 1 11 36 1"
  7. The data will be submitted to the worker and the results will appear shortly: 
    [04:31:55 INFO    utility.utility] Decryption result at client -
You have a 46% risk of heart disease.
  8. Optionally submit another request. Use the --help option to see other available options
  9. In Terminal 1, press Ctrl-c to stop the Avalon Enclave Manager and Listener

Using the Heart Disease Evaluation GUI Client

The GUI client, heart_gui.py opens a X window on your display. You must run this on your graphical console or a terminal emulator that supports X Windows. The Avalon Enclave Manager and Avalon Listener run in a Docker container.

  1. If needed, in file docker/Dockerfile.tcf-dev change ENV DISPLAY to the X Windows $DISPLAY value. By default, it is the console, :0
  2. If needed, also update the Ethereum account and direct registry contract information in docker/Dockerfile.tcf-dev and examples/common/python/connectors/tcf_connector.toml
  3. Follow instructions in the "Docker-based Build and Execution" section of the build document through step 4 (activating a virtual environment)
  4. Terminal 1 is running the Avalon Enclave Manager and Listener with docker-compose . Terminal 2 is running the Docker container shell
  5. In Terminal 2 run cd $TCF_HOME/examples/apps/heart_disease_eval/client
  6. In Terminal 2 install Python3's TKInter GUI library with 
    export DEBIAN_FRONTEND=noninteractive; apt update; apt -y install python3-tk
  7. In Terminal 2 install the Solidity compiler as follows: 
    mkdir -p $HOME/.py-solc/solc-v0.4.25/bin \
&& curl -LsS https://github.com/ethereum/solidity/releases/download/v0.4.25/solc-static-linux \
        -o /root/.py-solc/solc-v0.4.25/bin/solc \
&& chmod 0755 /root/.py-solc/solc-v0.4.25/bin/solc &&
export SOLC_BINARY=/root/.py-solc/solc-v0.4.25/bin/solc
  8. In Terminal 2, set environment variable WALLET_PRIVATE_KEY if not set. This should match the value in file docker/Dockerfile.tcf-dev from step 3 above: 
    export WALLET_PRIVATE_KEY="B413189C95B48737AE2D9AF4CAE97EB03F4DE40599DF8E6C89DCE4C2E2CBA8DE"
  9. If your DISPLAY is not the local console, :0, you need to give access to your display from the GUI. Open a new terminal, Terminal 3, and run xhost +
  10. In Terminal 2, run ./heart_gui.py . Use the --help option to see other available options
  11. A new window will pop up with the GUI. See the screenshot below for an example.
  12. Input all the heart disease evaluation values. Alternatively, check the "Input variables as string" box to input the values as a string of 14 integers separated by spaces. For example, 25 10 1 67 102 125 1 95 5 10 1 11 36 1 or 32 1 1 156 132 125 1 95 1 0 1 1 3 1
  13. Click the "Evaluate" button and a new window will appear with the heart disease evaluation result. The "View Request", "View Result", and "View Receipt" buttons will pop up windows displaying the raw JSON RPC files
  14. Close the GUI windows when done
  15. If you ran xhost + above, close access to your display with xhost - in Terminal 3
  16. In Terminal 1, press Ctrl-c to stop the Avalon Enclave Manager and Listener

Screenshot of heart_gui.py
Screenshot of heart_gui.py