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UNION (Chain ID : union-testnet-8)
by AviaOne BlockChains Service 🟢

Logo Union

UNION

Union connects the next generation of blockchains and rollups, across any ecosystem.

Aviaone endpoints

STEP 1 Update your server to get the latest version
sudo apt update && sudo apt upgrade -y
STEP 2 Install packages
sudo apt install git curl wget tar lz4 unzip jq build-essential pkg-config clang bsdmainutils make ncdu -y
STEP 3 Install Go

Go is a programming language allowing each node of the Cosmos ecosystem to operate.
Go is a compiled and concurrent programming language inspired by C and Pascal.
This language was developed by Google from an initial concept by Robert Griesemer, Rob Pike and Ken Thompson.

cd $HOME
version="1.22.5"
wget "https://golang.org/dl/go$version.linux-amd64.tar.gz"
sudo rm -rf /usr/local/go
sudo tar -C /usr/local -xzf "go$version.linux-amd64.tar.gz"
rm "go$version.linux-amd64.tar.gz"
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile
source $HOME/.bash_profile

Check GO version, it must return : go version go1.22.5 linux/amd64

go version
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STEP 4 Install App and build

Here we will install the node for Union with this binary version :

Please be sure to install the latest version one last minute version can be published ! Please check by yourself here...
cd $HOME
git clone THERE IS NO BINARY ON GITHUB DOWNLOAD IT HERE -> https://services.union-testnet-8.union.aviaone.com/uniond 
cd union 
git checkout  
make install

Check if the binary "uniond" version has been correctly installed

uniond version
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STEP 5 Set variables

What does moniker mean?
A personal name or nickname. This name (moniker) will appear in the blockchain explorer.

SPACE in your moniker will create errors

UNION_MONIKER="Replace_AVIAONE_by_your_name"
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STEP 6 Initialize the node (part 1)

We are now ready to initialze the node


uniond init $UNION_MONIKER --chain-id union-testnet-8 --home $HOME/.union
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STEP 7 Initialize the node (part 2)

Set minimum gas price

sed -i -e "s|^minimum-gas-prices *=.*|minimum-gas-prices = \"0muno\"|" $HOME/.union/config/app.toml

Download genesis

wget -O $HOME/.union/config/genesis.json "https://services.union-testnet-8.union.aviaone.com/genesis.json"

Download addrbook

wget -O $HOME/.union/config/addrbook.json "https://services.union-testnet-8.union.aviaone.com/addrbook.json"

Add Seeds

SEEDS="258f523c96efde50d5fe0a9faeea8a3e83be22ca@seed.union-testnet-8.union.aviaone.com:10277"
sed -i -e "s|^seeds *=.*|seeds = \"$SEEDS\"|" $HOME/.union/config/config.toml

Change ports

Advanced users ONLY !

Clear Data

uniond tendermint unsafe-reset-all $HOME/.union --keep-addr-book
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STEP 8 Create service to START and STOP (/etc/systemd/system)

This will let you start and stop your node with /etc/systemd/system

sudo tee /etc/systemd/system/uniond.service > /dev/null <<EOF
[Unit] 
Description=UNION\n 
After=network.target 
[Service] 
Type=simple
User=$USER
ExecStart=$(which uniond) start --home $HOME/.union
Restart=on-failure RestartSec=10 LimitNOFILE=65535 [Install] WantedBy=multi-user.target EOF
sudo systemctl enable uniond 
sudo systemctl daemon-reload

This command will start your node

Do not use it now if you are going to use below : Snapshot | State Sync (because your node shouldn't start now... but after the Snapshot | State Sync)

sudo systemctl restart uniond && journalctl -u uniond -f --no-hostname -o cat
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STEP 9 SNAPSHOT SNAPSHOT (After do no use STATE SYNC if you get synced, this is make no sense !)
How to use ?
The best way is just copy and past this code below in your terminal and that's it ! Your snapshot will be done.
Generic placeholder image
SNAPSHOT Union (Chain ID : union-testnet-8)

(updated every 24 hours)

File name : https://services.union-testnet-8.union.aviaone.com/union-testnet-8_2024-07-21.tar.gz

Download this file

sudo systemctl stop uniond 
cp $HOME/.union/data/priv_validator_state.json $HOME/.union/priv_validator_state.json.backup
uniond tendermint unsafe-reset-all --home $HOME/.union --keep-addr-book
wget -c https://services.union-testnet-8.union.aviaone.com/union-testnet-8_2024-07-21.tar.gz -O - | tar -xz -C $HOME/.union
mv $HOME/.union/priv_validator_state.json.backup $HOME/.union/data/priv_validator_state.json sudo systemctl start uniond && sudo journalctl -u uniond -f --no-hostname -o cat
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STEP 9 STATE SYNC STATE SYNC (After do not use SNAPSHOT if you get synced, this is make no sense !)
How to use ?
The best way is just copy and past this code below in your terminal and that's it ! Your StateSync will be done.

Please be sure to use the latest binary version :

Optional to clean your previous State Sync
sed -i "/\[statesync\]/, /^enable =/ s/=.*/= false/;\
/^rpc_servers =/ s|=.*|= \"\"|;\
/^trust_height =/ s/=.*/= 0/;\
/^trust_hash =/ s/=.*/= \"\"/" $HOME/.union/config/config.toml						 
sudo systemctl stop uniond 
SNAP_RPC="https://rpc.union-testnet-8.union.aviaone.com:443"
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000)); \
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)
Check if you get a positive return
echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH
Copy and past !
sed -i "/\[statesync\]/, /^enable =/ s/=.*/= true/;\
/^rpc_servers =/ s|=.*|= \"$SNAP_RPC,$SNAP_RPC\"|;\
/^trust_height =/ s/=.*/= $BLOCK_HEIGHT/;\
/^trust_hash =/ s/=.*/= \"$TRUST_HASH\"/" $HOME/.union/config/config.toml
Reset all data
sudo systemctl stop uniond && uniond tendermint unsafe-reset-all --home $HOME/.union --keep-addr-book
Add WASM folder without cache
 wget -c https://services.union-testnet-8.union.aviaone.com/wasm.tar.gz -O - | tar -xz -C /.union
Start Sync
sudo systemctl start uniond && journalctl -u uniond -f --no-hostname -o cat
Watch your logs and be patient it can take 5 minutes.... !!

STEP 10 Now get synced and check

With the command used just above, your node just started, now BE PATIENT your node has started to work and will need time to get synced on the last block.

First check your logs and have a look at what's going on !

You should see some output like this which confirm that your node is indexing blocks

### indexed block exents height= module=txindex

How to check if your node is already fully synced? ?

uniond status 2>&1 | jq .SyncInfo

The current block number is : and the last block app hash is :

true mean syncing on the way, and true is NOT SYNCED

You will see an output with :

"catching_up": false

If you get true instead of false, please wait... it's not done yet, it's on the way...

true mean syncing on the way, and true is NOT SYNCED

The current block number is : and the last block app hash is :

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STEP 11 Create or recover a wallet

Why it's better to get synced before to create or recover a wallet ?
Because when your wallet will be created or recovered, if you are not synced, you will not be able to check the balance !

Create Wallet

uniond keys add name_wallet --home $HOME/.union

Recover Wallet

uniond keys add name_wallet --recover --home $HOME/.union
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STEP 12 Create your validator (NEVER DO IT if you are not already synced with the last block)

Create your validator if you are not synced, you will get some troubles...

uniond tx staking create-validator \
 --amount=1000000muno \
 --pubkey=$(uniond tendermint show-validator) \
 --moniker="YOUR_NICKNAME" \
 --chain-id=union-testnet-8 \
 --commission-rate=0.05 \
 --commission-max-rate=0.2 \
 --commission-max-change-rate=0.02 \
 --min-self-delegation=1 \
 --website="https://your-website.com" \
 --identity="keyBASE_id" \
 --details="This is will be display in the blockchain explorer. Write here something about you"\
 --gas-prices=0.1muno \
 --gas-adjustment=1.5 \
 --gas=auto \
 --from=WRITE_HERE_YOUR_WALLET_ADDRESS
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LAST STEP EVERYTHING IS DONE !!!

Congratulations, your made all the steps above necessary to setup the node for UNION (chain-id=union-testnet-8) with success and your node is already online now.

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Find here the most useful commands for Union (--chain-id union-testnet-8)
uniond q bank balances YOUR_WALLET_NUMBER

Must return false to get synced

uniond status 2>&1 | jq .SyncInfo
journalctl -u uniond -f --no-hostname -o cat

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx gov vote 14 yes --from YOUR_WALLET_NUMBER --chain-id union-testnet-8

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx slashing unjail --chain-id=union-testnet-8 --from YOUR_WALLET_NUMBER -y
sudo systemctl restart uniond && journalctl -u uniond -f --no-hostname -o cat
uniond q bank balances YOUR_WALLET_NUMBER
uniond keys add YOUR_WALLER_NAME
uniond keys add YOUR_WALLET_NUMBER --recover
uniond keys list
uniond keys delete YOUR_WALLET_NUMBER

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx gov vote 14 yes --from YOUR_WALLET_NUMBER --chain-id union-testnet-8

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx gov vote 14 no --from YOUR_WALLET_NUMBER --chain-id union-testnet-8

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx gov vote 14 no_with_veto --from YOUR_WALLET_NUMBER --chain-id union-testnet-8

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx gov vote 14 abstain --from YOUR_WALLET_NUMBER --chain-id union-testnet-8

(In some case that's necessary to add "fees" or --gas=auto)

uniond query gov proposals

(In some case that's necessary to add "fees" or --gas=auto)

uniond query gov proposal 14

(In some case that's necessary to adjust : "deposit" or "fees" or --gas=auto)

uniond tx gov submit-proposal \
--from YOUR_WALLET_NUMBER \
--chain-id union-testnet-8 \
--deposit=100000000muno \
--type="Text" \
--title="Write here the title of your proposal for Union" \
--description="Describe here with details your proposal for Union" \
--fees=10000muno \
--gas=auto \
-y 

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx slashing unjail --chain-id=union-testnet-8 --from YOUR_WALLET_NUMBER -y
uniond keys show YOUR_WALLET_NUMBER --bech val -a
uniond query staking validator YOUR_VALIDATOR_VALOPER --output json 
uniond q staking validator $(uniond keys show YOUR_WALLET_NUMBER --bech val -a)
uniond query slashing signing-info $(uniond tendermint show-validator)
uniond status 2>&1 | jq .ValidatorInfo
uniond q staking validators -oj --limit=3000 | jq '.validators[] | select(.status=="BOND_STATUS_BONDED")' | jq -r '(.tokens|tonumber/pow(10; 6)|floor|tostring) + " \t " + .description.moniker' | sort -gr | nl
uniond q staking validators -oj --limit=3000 | jq '.validators[] | select(.status=="BOND_STATUS_UNBONDED")' | jq -r '(.tokens|tonumber/pow(10; 6)|floor|tostring) + " \t " + .description.moniker' | sort -gr | nl
uniond tx staking edit-validator \
--new-moniker="Replace AVIAONE by your name" \
--identity=YOUR_KEYBASE_ID \
--details="This is will be display in the blockchain explorer. Write here something about you" \
--chain-id=union-testnet-8 \
--commission-rate=0.1 \
--from=YOUR_WALLET_NUMBER \
--gas-prices=0.1muno \
--gas-adjustment=1.5 \
--gas=auto \
-y 

(NEVER DO IT if you are not already synced with the latest block)

uniond tx staking create-validator \
--amount=1000000muno \
--pubkey=$(union-testnet-8 tendermint show-validator) \
--moniker="Replace AVIAONE by your name" \
--identity=YOUR_KEYBASE_ID \
--details="This is will be display in the blockchain explorer. Write here something about you" \
--chain-id=union-testnet-8 \
--commission-rate=0.10 \
--commission-max-rate=0.20 \
--commission-max-change-rate=0.01 \
--min-self-delegation=1 \
--from=YOUR_WALLET_NUMBER \
--gas-prices=0.1muno \
--gas-adjustment=1.5 \
--gas=auto \
-y 

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx bank send WALLET_SENDER WALLET_RECEIVER 1000000muno --chain-id=union-testnet-8

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx staking delegate WALLET_NUMBER_WHERE_YOU_WANT_DELEGATE 1000000muno --from YOUR_WALLET_NUMBER --chain-id=union-testnet-8

(In some case that's necessary to add "fees" or --gas=auto)

uniond tx staking delegate YOUR_VALIDATOR_NUMBER 1000000muno --from YOUR_WALLET_NUMBER --chain-id=union-testnet-8
uniond tx distribution withdraw-all-rewards --from YOUR_WALLET_NUMBER
uniond tx distribution withdraw-rewards YOUR_VALIDATOR_NUMBER --from YOUR_WALLET_NUMBER --commission
Under contruction
Under contruction
Under contruction
sed -i -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0muno\"/" $HOME/.union/config/app.toml
sed -i -e 's|^indexer *=.*|indexer = "null"|' $HOME/.union/config/config.toml
sed -i -e 's|^indexer *=.*|indexer = "kv"|' $HOME/.union/config/config.toml
echo $(uniond tendermint show-node-id)'@'$(curl -s ifconfig.me)':'$(cat $HOME/.union/config/config.toml | sed -n '/Address to listen for incoming connection/{n;p;}' | sed 's/.*://; s/".*//')
curl -sS https://rpc.union-testnet-8.union.aviaone.com/net_info | jq -r '.result.peers[] | "\(.node_info.id)@\(.remote_ip):\(.node_info.listen_addr)"' | awk -F ':' '{print $1":"$(NF)}'

YOU ARE GOING TO DELETE EVERYTHING WITHOUT ANY POSSIBILITY TO RECOVER, be sure that's really you are looking for...

BEFORE BE SURE TO SAVE $HOME/.union/config/priv_validator_key.json

This file $HOME/.union/config/priv_validator_key.json will let you create a new node with the same validator

cd $HOME
sudo systemctl stop uniond 
sudo systemctl disable uniond 
sudo rm /etc/systemd/system/uniond.service 
sudo systemctl daemon-reload 
rm -f $(which uniond) 
rm -rf $HOME/.union 
rm -rf $HOME/union
Get all fresh live peers available with the chain union-testnet-8
curl -sS https://rpc.union-testnet-8.union.aviaone.com/net_info | jq -r '.result.peers[] | "\(.node_info.id)@\(.remote_ip):\(.node_info.listen_addr)"' | awk -F ':' '{print $1":"$(NF)}'
SEEDS="258f523c96efde50d5fe0a9faeea8a3e83be22ca@seed.union-testnet-8.union.aviaone.com:10277"
sed -i -e "s|^seeds *=.*|seeds = \"$SEEDS\"|" $HOME/.union/config/config.toml

(updated every 4 hours)

curl -Ls https://services.union-testnet-8.union.aviaone.com/addrbook.json > $HOME/.union/config/addrbook.json

(updated every 4 hours)

curl -Ls https://services.union-testnet-8.union.aviaone.com/genesis.json > $HOME/.union/config/genesis.json
SNAPSHOT Union (Chain ID : union-testnet-8)
SNAPSHOT Union (Chain ID : union-testnet-8)

(updated every 24 hours)

File name : https://services.union-testnet-8.union.aviaone.com/union-testnet-8_2024-07-21.tar.gz


Please be sure to use the latest binary version.

One last minute version can be published ! Please check by yourself here... and compare with your node uniond version

How to use ? The best way is just copy and past this code below in your terminal and that's it ! Your snapshot will be done.
sudo systemctl stop uniond
cp $HOME/.union/data/priv_validator_state.json $HOME/.union/priv_validator_state.json.backup uniond tendermint unsafe-reset-all --home $HOME/.union --keep-addr-book wget -c https://services.union-testnet-8.union.aviaone.com/union-testnet-8_2024-07-21.tar.gz -O - | tar -xz -C $HOME/.union
mv $HOME/.union/priv_validator_state.json.backup $HOME/.union/data/priv_validator_state.json sudo systemctl start uniond && sudo journalctl -u uniond -f --no-hostname -o cat

Please be sure to use the latest binary version :

How to use ? The best way is just copy and past this code below in your terminal and that's it !
Optional to clean your previous State Sync
Recommanded when you already get Sync to avoid trouble when you will restart your node next time.
sed -i "/\[statesync\]/, /^enable =/ s/=.*/= false/;\
/^rpc_servers =/ s|=.*|= \"\"|;\
/^trust_height =/ s/=.*/= 0/;\
/^trust_hash =/ s/=.*/= \"\"/" $HOME/.union/config/config.toml
Start here the process for State Sync
sudo systemctl stop uniond 
SNAP_RPC="https://rpc.union-testnet-8.union.aviaone.com:443"
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height); \
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000)); \
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)
Check if you get a positive return
echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH
Copy and past !
sed -i "/\[statesync\]/, /^enable =/ s/=.*/= true/;\
/^rpc_servers =/ s|=.*|= \"$SNAP_RPC,$SNAP_RPC\"|;\
/^trust_height =/ s/=.*/= $BLOCK_HEIGHT/;\
/^trust_hash =/ s/=.*/= \"$TRUST_HASH\"/" $HOME/.union/config/config.toml
Reset all data
sudo systemctl stop uniond && uniond tendermint unsafe-reset-all --home $HOME/.union --keep-addr-book
Add WASM folder without cache
 wget -c https://services.union-testnet-8.union.aviaone.com/wasm.tar.gz -O - | tar -xz -C /.union
Now we must restart the node Union to initiate synchronization with the chain union-testnet-8
sudo systemctl start uniond && journalctl -u uniond -f --no-hostname -o cat
Watch your logs and be patient it can take 5 minutes.... !!
How to use ? You are looking for an other way than the command line to connect your wallet with Union (Chain ID : union-testnet-8)?
Logo Keplr
ADD in your Keplr Wallet : Union (Chain ID : union-testnet-8)

That's an easy process, just click and follow the instructions...it will be done in 10 seconds !

Our platform offers a secure link that allows you to effortlessly connect your KEPLR wallet. The process is quick and easy. Adding a new chain to your wallet is a standard procedure that doesn't involve any transaction. It simply requires your approval. To get started, click on the button below to add this chain to your wallet and start interacting with the blockchain.