CentOS 安装Cosmos开发环境

1、Go install.

wget https://go.dev/dl/go1.19.3.linux-amd64.tar.gz

rm -rf /usr/local/go && tar -C /usr/local -xzf go1.19.3.linux-amd64.tar.gz

export PATH=$PATH:/usr/local/go/bin

go version

 

2、Installing Rust in Linux　

curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh

Install the wasm32 target:

rustup default stable
cargo version
# If this is lower than 1.51.0, update
rustup update stable

rustup target list --installed
rustup target add wasm32-unknown-unknown

　　

3、wasmd

git clone https://github.com/CosmWasm/wasmd.git
cd wasmd
# replace the v0.16.0 with the most stable version on https://github.com/CosmWasm/wasmd/releases
# oysternet runs on wasmd v0.16.0
# replace the v0.27.0 with the most stable version on https://github.com/CosmWasm/wasmd/releases
git checkout v0.27.0
# git checkout v0.16.0
# build wasmd executable
make install

# verify the installation
wasmd version

　　

4、Setting up wasmd and Wallet

public testnet (Malaga-420) 

setup  env

source <(curl -sSL https://raw.githubusercontent.com/CosmWasm/testnets/master/malaga-420/defaults.env)

just the same as:

export CHAIN_ID="malaga-420"
export TESTNET_NAME="malaga-420"
export FEE_DENOM="umlg"
export STAKE_DENOM="uand"
export BECH32_HRP="wasm"
export WASMD_VERSION="v0.27.0"
export CONFIG_DIR=".wasmd"
export BINARY="wasmd"

export COSMJS_VERSION="v0.28.1"
export GENESIS_URL="https://raw.githubusercontent.com/CosmWasm/testnets/master/malaga-420/config/genesis.json"

export RPC="https://rpc.malaga-420.cosmwasm.com:443"
export API="https://api.malaga-420.cosmwasm.com"
export FAUCET="https://faucet.malaga-420.cosmwasm.com"

export NODE=(--node $RPC)
export TXFLAG=($NODE --chain-id $CHAIN_ID --gas-prices 0.25umlg --gas auto --gas-adjustment 1.3)

　　

generate wallet　

# add wallets for testing
wasmd keys add wallet

　requesting tokens form the faucet

JSON=$(jq -n --arg addr $(./wasmd keys show -a wallet) '{"denom":"umlg","address":$addr}') && curl -X POST --header "Content-Type: application/json" --data "$JSON" https://faucet.malaga-420.cosmwasm.com/credit

　centos 7 yum install jq

wget http://dl.fedoraproject.org/pub/epel/epel-release-latest-7.noarch.rpm

rpm -ivh epel-release-latest-7.noarch.rpm

yum repolist      ##检查是否已添加至源列表

yum install jq

　　 

./wasmd query bank total $NODE

./wasmd query bank balances $(./wasmd keys show -a wallet) $NODE