BC-interop-daml

A Portable DAML application on Fabricnet work & Sawtooth network

FabcCar app implementation of DAML ledger that stores data transactions using Hyperledger Fabric & Hyperledger Sawtooth.

Quick Start Guide

Prerequisites

These are the minimal requirements that this flow was tested with. It's good to use greater versions or sometimes even lower, but not advised.

• Ubuntu version 18.04
• Python version > 3.6
• Dazl version > 7.5
• Pipenv
• DAML SDK version > 0.13.40

Deploy DAML FabCar smart contract on Hyperledger Fabric

Step 1. Setup & Start Hyperledger Fabric Network

repo: https://github.com/digital-asset/daml-on-fabric

Step 2. Install DAML Smart Contract on HLF network

Path for DAML FabCar SC: HLF_FabCar_SC_DAML/daml/FabCar.daml

Step 3. Interact with python app

$ cd HLF_FabCar_SC_DAML/Fabric/Python

$ pipenv run python3 InitLedger.py --url http://localhost:6865

$ pipenv run python3 ChangeOwner.py --url http://localhost:6865

$ pipenv run python3 CreateCar.py --url http://localhost:6865

$ pipenv run python3 QueryAllCars.py 

$ pipenv run python3 QueryCarbyKey.py --key <int value>

Step 4. Conclusion

Now you can explore your freshly setup DAML ledger.

You should have the following services running:

• DAML Navigator at http://localhost:7500/
• Hyperledger Fabric block explorer at http://localhost:8080/blocks
• Hyperledger Fabric block explorer at http://localhost:8080/transactions
• DAML Ledger API endpoint at localhost:6865

Deploy DAML FabCar smart contract on Hyperledger Sawtooth

1. Setup & Start Hyperlegder Sawtooth network

repo: https://github.com/blockchaintp/daml-on-sawtooth

Step 2. Install DAML Smart Contract on HLF network

Path for DAML FabCar SC: HLF_FabCar_SC_DAML/daml/FabCar.daml

Step 3. Interact with python app

$ cd HLF_FabCar_SC_DAML/Sawtooth/Python

$ pipenv run python3 InitLedger.py --url http://localhost:9000

$ pipenv run python3 ChangeOwner.py --url http://localhost:9000

$ pipenv run python3 CreateCar.py --url http://localhost:9000

$ pipenv run python3 QueryAllCars.py 

$ pipenv run python3 QueryCarbyKey.py --key <int value>

Step 4. Conclusion

Now you can explore your freshly setup DAML ledger.

You should have the following services running:

• DAML Navigator at http://localhost:4000/
• Hyperledger Fabric block explorer at http://localhost:80/
• DAML Ledger API endpoint at localhost:9000

An interoperable approach for DAML app on Fabric network & Sawtooth network

FabcCar app implementation of DAML ledger that stores data transactions using Hyperledger Fabric & Hyperledger Sawtooth

Quick Start Guide

Deploy DAML FabCar smart contract on Hyperledger Fabric

Step 1. Setup & Start Hyperledger Fabric Network

repo: https://github.com/digital-asset/daml-on-fabric

Step 2. Install DAML Smart Contract on HLF network

Path for DAML FabCar SC: DAML-Relays/SMFabric/daml/FabCar.daml

Step 3. Interact with python libraries

$ cd /DAML-Relays/Fabric/Python

$ pipenv run python3 InitLedger.py --url http://localhost:6865

$ pipenv run python3 ChangeOwner.py --url http://localhost:6865

$ pipenv run python3 CreateCar.py --url http://localhost:6865

$ pipenv run python3 QueryAllCars.py 

$ pipenv run python3 QueryCarbyKey.py --key <int value>

Step 4. Conclusion

Now you can explore your freshly setup DAML ledger.

You should have the following services running:

• DAML Navigator at http://localhost:7500/
• Hyperledger Fabric block explorer at http://localhost:8080/blocks
• Hyperledger Fabric block explorer at http://localhost:8080/transactions
• DAML Ledger API endpoint at localhost:6865

Deploy DAML FabCar smart contract on Hyperledger Sawtooth

1. Setup & Start Hyperlegder Sawtooth network

repo: https://github.com/blockchaintp/daml-on-sawtooth

Step 2. Install DAML Smart Contract on HLF network

Path for DAML FabCar SC: DAML-Relays/SMSAwtooth/daml/FabCar.daml

Step 3. Interact with python app

$ cd /DAML-Relays/Sawtooth/Python

$ pipenv run python3 QueryAllCars.py 

$ pipenv run python3 QueryCarbyKey.py --key <int value>

Step 4. Conclusion

Now you can explore your freshly setup DAML ledger.

You should have the following services running:

• DAML Navigator at http://localhost:4000/
• Hyperledger Fabric block explorer at http://localhost:80/
• DAML Ledger API endpoint at localhost:9000

Reverse Engineering - Convertion of a HLF node.js chaincode to DAML smart contract

Prerequisites

• Python version > 3.6

Python libralies:

• re
• json
• argparse
• os
• datetime

Convert a HLF node.js to DAML. The format and the struct of the chaincode should be based on the example

Quick Start Guide

Step 1. Navigate to the CovertJStoDaml folder and add a new SC or test the marbles.js chaincode

$ cd ../CovertJStoDaml

Step 2. Concert the chaincode to DAML smart contract

$ python3 ParseFabricSM.py --fabric marbles.js

License

Code is available under the GPL 3.0 license

https://www.gnu.org/licenses/gpl-3.0.html