...by Daniel Szego
quote
"Simplicity is the ultimate sophistication."
Leonardo da Vinci

Wednesday, November 28, 2018

Configure Oraclize with an Ethereum consortium or private network


Supposing you want to use Oraclize with a consortium Ethereum blockchain network, like in the simplest case with your Truffle development environment , you have to do the following steps: 

1. Install Ethereum Bridge to one of the node on your Ethereum consortium network: https://github.com/oraclize/ethereum-bridge

git clone https://github.com/oraclize/ethereum-bridge.git
cd ethereum-bridge
npm install

2. Start your Ethereum Bridge, with the network url and an account, like for Truffle:

./ethereum-bridge -H localhost:9545 -a 0 --dev

3. At deploying with truffle, copy the OraclizeAPI_05.sol locally. 

4. You can practically use the same code as on a live network, in the Ethereum Bridge window, you can check the sent and received transactions as well. 

A very simple implementation can be found under EthereumBridge in the following github repo