uwavm

README

Universal WebAssembly Virtual Machine

UWAVM is a WebAssembly VM in Go. UWAVM provide tools to decode wasm binary files that compiled by golang, javascript, c/c++, rust.

Quick start

Requirements

• Go 1.12.x or later

Build

1. Clone the repository

git clone https://github.com/BeDreamCoder/uwavm.git

1. Build uwavm executable program

make build

Run

cd output

1. Golang contract

Deploy contract

./uwavm contract deploy -n erc20 -l go -a '{"totalSupply":"1000000"}' -p ../testdata/erc20_go.wasm -c alice

Query contract

./uwavm contract query -n erc20 -l go -m query -a '{"action":"balanceOf","address":"alice"}' -c alice

Invoke contract

./uwavm contract invoke -n erc20 -l go -m invoke -a '{"action":"transfer","to":"bob","amount":"100"}' -c alice

1. C++ contract

Deploy contract

./uwavm contract deploy -n erc20 -l c -a '{"totalSupply":"1000000"}' -p ../testdata/erc20_c.wasm -c alice

Query contract

./uwavm contract query -n erc20 -l c -m balance -a '{"caller":"alice"}' -c alice

Invoke contract

./uwavm contract invoke -n erc20 -l c -m transfer -a '{"from":"alice","to":"bob","amount":"100"}' -c alice