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electricity-trade

Prerequisites

Before you begin, you need to check that you have all the prerequisites installed as follows:

  • OS: Linux (recommend: Ubuntu18.04 or CentOS7)
  • Docker (recommend: v17.06.2-ce or greater)
  • Docker-compose (recommend: v1.14.0 or greater)
  • node.js v12 (recommend: v12.20.2 or greater)
  • The ports 5034, 5040, 5051 are available (If they are already used, the following processes can be done by changing the port number setting)

Boot method

  1. Before booting, please modify the following information for your environment
    • applicationHostInfo.hostName (IP address of the host on the Location header) on /packages/config/default.json
  2. (Optional) Please modify the following information for your environment if necessary. This procedure should only be performed by users who cannot use port 5034.
    • applicationHostInfo.hostPort (The port number of Routing-interface http server, the default is 5034) on /packages/config/default.json
  3. Go to the following directory: 
    cd cactus/examples/electricity-trade/
  4. Start ledgers: 
    ./script-start-ledgers.sh
  5. Build validators, packages, and the cartrade app: 
    ./script-build-all.sh
  6. Start validators and the cartrade app
    • Please open three consoles and execute the following:.
    • Start the validator for Sawtooth on the first console: 
       ./script-start-validator-sawtooth.sh
    • Start the validator for Ethereum on the second console: 
       ./script-start-validator-ethereum.sh
    • Start the cartrade app on the third console: 
       ./script-start-electricity-trade.sh

How to use this application

Assumption

  • The parameters are used on this application
    • Source account on Ethereum: 06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97
    • The privkey of source account on Ethereum: cb5d48d371916a4ea1627189d8af4f642a5d72746a06b559780c3f5932658207
    • Destination account on Ethereum: 9d624f7995e8bd70251f8265f2f9f2b49f169c55
    • The key name of intkey on Sawtooth: MI000001

Setup the application

  1. Set the intkey script on Sawtooth docker: 
    ./script-set-sawtooth-intkey.sh
  2. Register on account information: 
    curl localhost:5034/api/v1/bl/electricity-trade/meter/register/ -XPOST -H "Content-Type: application/json" -d '{"businessLogicID":"h40Q9eMD","meterParams":["MI000001", "06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97", "cb5d48d371916a4ea1627189d8af4f642a5d72746a06b559780c3f5932658207", "9d624f7995e8bd70251f8265f2f9f2b49f169c55"]}'

Run the application

  1. (Optional) Check the balance on Ethereum accounts using the following script

    • Check the balance of the source account as the following:
    curl localhost:5034/api/v1/bl/balance/06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97

     - The result: `{"status":200,"amount":100000}`
    • Check the balance of the destination account:
    curl localhost:5034/api/v1/bl/balance/9d624f7995e8bd70251f8265f2f9f2b49f169c55

     - The result: `{"status":200,"amount":0}`

  2. Start the electricity-trade application

    curl localhost:5034/api/v1/bl/electricity-trade/ -XPOST -H "Content-Type: application/json" -d '{"businessLogicID":"h40Q9eMD"}'

     - The example response of tradeID: `{"tradeID":"20210220075755506-001"}`
    • (Then, the application starts to monitor the Sawtooth blockchain)

  3. Execute the intkey transaction on Sawtooth blockchain

    • Open the docker bash: 
       docker exec -it sawtooth-shell-default bash
    • Execute the intkey transaction: 
       intkey create_batch --key-name MI000001 --value-set 50 --value-inc 24
 sawtooth batch submit -f batches.intkey --url http://rest-api:8008
    • (In the above, the value of the key MI000001 is set as 50, and increased by 24)
    • After that, exit the docker bash: exit

  4. (Optional) Check the balance on Ethereum accounts using the following script

    • Check the balance of the source account as the following:
    curl localhost:5034/api/v1/bl/balance/06fc56347d91c6ad2dae0c3ba38eb12ab0d72e97

     - The result: `{"status":200,"amount":99976}`
    • Check the balance of the destination account:
    curl localhost:5034/api/v1/bl/balance/9d624f7995e8bd70251f8265f2f9f2b49f169c55

     - The result: `{"status":200,"amount":24}`
    • (The result shows that the asset was transferred between Ethereum addresses depending on the value of the change in Sawtooth intkey.)