ICA demo

This is the script that needs to be run on both servers, except the chain id needs to be changed on the second server

Introduction

• Alice is on chain test-1 and has 100 tokens
• bob is on chain test-2 does not have any token.
• alice knows an faucet user on chain test-2, so she can sometimes ask faucet user to send her some tokens.

1. now, alice wants to send some native token of chain test-2 to bob.

2. alice want to transfer some of her asset on chain test-2 to chain test-1.

3. alice want to delegate the rest of her tokens on chain test-2 to a validator on test-2.

setup:

• run the scrip to build two chains on digital ocean.
• set up two homes for chain test-1 and test-2, called .gaia, and .gaia2.
• I also have created a channel channel-1 for ibc transfer.

Now you can locally compile the binary and run commands from your computer that point to the two ip addresses of the two nodes:

# gaia home for chain test-1
gaiad config chain-id test-1
gaiad config node http://165.22.23.73:26657
gaiad config keyring-backend test

# gaia home for chain test-2
gaiad config chain-id test-2 --home ~/.gaia2
gaiad config node http://164.90.226.126:26657 --home ~/.gaia2
gaiad config keyring-backend test --home ~/.gaia2

hermes query connections test-1
hermes query channels test-1

Prepare faucet account, and user keys, and ica addr

• Billy has one faucet acct on chain test-1 and one on test-2
  Now add the same faucet account from the server to your local machine so you have an faucet account with some tokens in it for both chains

echo "history early rice thank umbrella barely pulse issue primary obvious situate wild help fish okay door floor strong comfort rib gesture donate flock until" | gaiad keys add faucet --recover

echo "history early rice thank umbrella barely pulse issue primary obvious situate wild help fish okay door floor strong comfort rib gesture donate flock until" | gaiad keys add faucet --recover --home ~/.gaia2

• alice key's mnemonic: (alice on test-1)

future inherit oval mosquito beach imitate material volume angry soul blue hungry outdoor census mention mimic curtain acoustic promote mushroom infant obey mask only

• bob key's mnemonic (bob on test-2)

cable eight shed online tobacco barrel barely garment bracket dial guard holiday jelly soda gallery empty chimney room pizza bird ribbon shaft tiny swallow

• export keys as env var

export FAUCET=$(gaiad keys show faucet -a)
export ALICE=$(gaiad keys show alice -a)
export BOB=$(gaiad keys show bob -a --home .gaia2)

• transfer some token of chain test-1 to alice

gaiad tx bank send $FAUCET $ALICE 100stake --from faucet

---

From here start demo:

show the setup

gaiad config 
gaiad config --home .gaia2
gaiad q bank balances $ALICE
gaiad q bank balances $BOB --home .gaia2

task prepare: get ica ready: register and send some token to ica

• get alice ica addr

gaiad tx icamsgauth register --from alice --connection-id connection-0 --counterparty-connection-id connection-0 --gas 150000 

query ica acct

gaiad q icamsgauth interchainaccounts $ALICE connection-0 connection-0 

export ica acct

export ICA=$(gaiad query icamsgauth interchainaccounts $(gaiad keys show alice -a) connection-0 connection-0 -o json | jq -r '.interchain_account_address')

query the connection:

hermes query connections test-1

query the channel: you can see one channel for alice ica

hermes query channels test-1

ica register cmd sends a new MsgChannelOpenInit internally in the interchain accounts code here and emits the events which hermes listens to and detects, and then hermes finishes the channel handshake by sending the ChannelOpenTry to the counterparty chain (test-2).

faucet send some token to ica

gaiad tx bank send $FAUCET $ICA 100stake --from faucet --home .gaia2

---

task 0(skip): ica sends some token to bob through ica

bob now does not have any tokens
Step 1: generate the transaction json

gaiad tx bank send $ICA $BOB 50stake --chain-id test-2 --generate-only | jq '.body.messages[0]' > ./send-raw.json

cat send-raw.json

step 2: send the generated tx json:

gaiad tx icamsgauth submit-tx ./send-raw.json --connection-id connection-0 --counterparty-connection-id connection-0 --from alice --chain-id test-1 --gas 150000

task1: ica send some tokens to alice through ibc transfer and ica

step1: create ibc channel (maybe ahead before demo)

hermes create channel  -c connection-0 --port-a transfer --port-b transfer test-1

step2:

gaiad tx ibc-transfer transfer transfer channel-1 $ALICE 10stake --from $ICA --home .gaia2 --generate-only | jq '.body.messages[0]' > send-raw.json


cat send-raw.json
{
  "@type": "/ibc.applications.transfer.v1.MsgTransfer",
  "source_port": "transfer",
  "source_channel": "channel-2",
  "token": {
    "denom": "stake",
    "amount": "10"
  },
  "sender": "cosmos1gzc3junl60s5t7vl9sdlvrc7npt2rm3erkyqdlxq7gcan0m094fqskrtfk",
  "receiver": "cosmos174zg2evx453gn8ztym9xsaa7rjqj7j5v80tgwn",
  "timeout_height": {
    "revision_number": "1",
    "revision_height": "7509"
  },
  "timeout_timestamp": "1642698787145236000"
}

step3: ibc tx by ica

gaiad tx icamsgauth submit-tx send-raw.json --connection-id connection-0 --counterparty-connection-id connection-0 --from alice --gas 150000

task2: ica delegate to val on chain test-2

query validator

gaiad q staking validators --home .gaia2 -o json | jq

val has 7000000000stake
val oper addr cosmosvaloper1hckrjqvuhdqncuuy73eu0engkgxn9gjds2jl5m

 gaiad tx staking delegate cosmosvaloper1hckrjqvuhdqncuuy73eu0engkgxn9gjds2jl5m 20stake --from $ICA --generate-only | jq '.body.messages[0]' > ./send-raw.json

cat send-raw.json
{
  "@type": "/cosmos.staking.v1beta1.MsgDelegate",
  "delegator_address": "cosmos1gzc3junl60s5t7vl9sdlvrc7npt2rm3erkyqdlxq7gcan0m094fqskrtfk",
  "validator_address": "cosmosvaloper1hckrjqvuhdqncuuy73eu0engkgxn9gjds2jl5m",
  "amount": {
    "denom": "stake",
    "amount": "20"
  }
}

query ica delegation

gaiad q staking delegations $ICA --home .gaia2 -o json | jq

propose upgrade by ica

gaiad tx gov submit-proposal software-upgrade theta \
--title theta \
--deposit 2stake \
--upgrade-height 73000 \
--upgrade-info "upgrade to theta" \
--description "upgrade to theta" \
--gas 400000 \
--from $ICA \
--home .gaia2 \
--yes \
--generate-only | jq '.body.messages[0]' > send-raw.json

gaiad tx icamsgauth submit-tx send-raw.json --connection-id connection-0 --counterparty-connection-id connection-0 --from alice --gas 150000

gaiad q gov proposals --home .gaia2

gaiad tx gov vote 1 yes \
> --from $ICA \
> --home .gaia2 \
> --yes --generate-only | jq '.body.messages[0]' > send-raw.json

Note

when creating a new channel, when do tc by this new channel, hermes log: account sequence mismatch problem (this err only appear in hermes v0.9)

the fix was solved in v0.10, but v0.10 currently doesn't work with ICA

---

notes from Billy

# account on `test-1` (aka a)
```bash
gaiad keys show demo | jq

{
  "name": "demo",
  "type": "local",
  "address": "cosmos16u7wauye3f6er5kf98k776c3syrrsgwsecm4yq",
  "pubkey": "{\"@type\":\"/cosmos.crypto.secp256k1.PubKey\",\"key\":\"Aie4oCBueIqSwmi+PiiM6QSN4Ih6cmAokSSX2x5RicJ+\"}"
}

Show balance of the account

gaiad q bank balances $(gaiad keys show demo -a) | jq

{
  "balances": [
    {
      "denom": "stake",
      "amount": "100000000000"
    }
  ],
  "pagination": {
    "next_key": null,
    "total": "0"
  }
}

Create ICA account on test-2 via test-1

gaiad tx icamsgauth register --from demo --connection-id connection-0 --counterparty-connection-id connection-0 --gas 150000

Show the account on test-2 (AKA a')

gaiad q icamsgauth interchainaccounts $(gaiad keys show demo -a) connection-0 connection-0 | jq

{
  "interchain_account_address": "cosmos1zg52ngxx95tznc4mqn6spvue25q2msgpatzw2925d0ar9vgk6u3s6qszr6"
}

Send tokens to the interchain account on test-2

gaiad tx bank send $(gaiad keys show demo -a --home ~/.gaia2) cosmos1zg52ngxx95tznc4mqn6spvue25q2msgpatzw2925d0ar9vgk6u3s6qszr6  99stake --from demo --home ~/.gaia2 -y | jq

show the balance of the interchain account

gaiad q bank balances cosmos1zg52ngxx95tznc4mqn6spvue25q2msgpatzw2925d0ar9vgk6u3s6qszr6 --home ~/.gaia2| jq

{
  "balances": [
    {
      "denom": "stake",
      "amount": "99"
    }
  ],
  "pagination": {
    "next_key": null,
    "total": "0"
  }
}

Send tokens back to the original account via interchain accounts