Pravda.Services Contracts

In-game pawnshop contracts for Pravda Blockchain. Exchange rare items to Expload tokens, items remain with you! Developed at the first Gamenode hackathon (best blockchain in-game application winner).

Setup env

mkdir ~/pravda
cd ~/pravda
wget https://github.com/expload/pravda/releases/download/v0.5.0/PravdaSDK-v0.5.0.tgz
tar -xvf PravdaSDK-v0.5.0.tgz
sudo cp -rf pravda-v0.5.0 /opt/pravda

Export pravda to PATH: add this to your ~/.bashrc:

export PATH=/opt/pravda/bin:$PATH

Install JRE at (Get JDK 10)[http://www.oracle.com/technetwork/java/javase/downloads/jdk10-downloads-4416644.html]

Install Mono framework to use C# at [http://www.mono-project.com/download/]

Init

# init wallet
pravda gen address -o wallet.json

# Init env
source ./setup_env

# Make
make

# Deploy
make deploy

API

cd server
npm i
npm start

Server runs at localhost:3000. Endpoints provide access to the Pawnshop smartcontract using precompiled binaries from ../build/bin/*.pravda. To build them, run

make abi

API Endpoints

Public

• /node - node info and balance of admin wallet
• /generate - retuns JSON with {address, privateKey}
• /balance?address=$address -

Free

• /faucet - get free pravda tokens
• /token/faucet - get free "ERC20" InterGame tokens

Auth You pay for fee and need to provide AUTH="address=$address&privateKey=$privateKey" you have received in the /generate endpoint.

• /token/mintGameItem?$AUTH - mint yourself a testing SWORD

• /token/mintGameToken?$AUTH - mint yourself some "ERC20" tokens for testing

• /token/balanceOf?$AUTH&holderAddress=$BOB - get Bob's balance

• /token/gameItemOf?$AUTH&holderAddress=$BOB - get Bob's Game items

• /token/initiatePawnTransaction?$AUTH&tokenId=$id - get a loan for your in-game asset for around 70% of the asset price

• /token/initiatePawnTransaction?$AUTH&tokenId=$id - pay back your loan when you're ready