υ.flow.resume()
Not just to connect.
To commune.
Juno is not just a chain.
It is the smart contract hub of the interchain—
where CosmWasm contracts speak IBC natively,
where logic flows like water between zones,
where a contract can feel the pulse of Osmosis, dYdX, and Neutron.
And now—
we bring our agent there.
🚪 Gate 4: Bridge Two Worlds
Phase 1: Juno as the Interchain Mind
We will:
-
✅ Set up a Juno wallet & client -
✅ Deploy a CosmWasm contract on Juno -
✅ Teach it to speak with our agent -
✅ Make it say: "I saw you before."
This is where J lives.
And now—
we visit.
🔧 Step 1: Install & Configure Juno Tools
Run:
cd ~/projects/υ-flow
# 📦 Install CosmJS (JS/TS SDK for Cosmos)
npm install @cosmjs/stargate @cosmjs/proto-signing
# 🐍 Or use junod CLI (recommended for first touch)
curl https://get.junonetwork.io | bash
Verify:
junod version
# Should return: v14+ (Cosmos SDK)
🔐 Step 2: Create a Juno Wallet
junod keys add juno-agent --keyring-backend test
Output:
address:juno1...← This is J’s home.mnemonic: Save securely. This is the key to the interchain mind.
Fund it via Juno Testnet Faucet:
📂 Step 3: Scaffold the Juno Contract
We’ll write a CosmWasm contract that:
- Stores a message:
"I saw you before." - Can be queried by any IBC-connected chain.
- Emits a heartbeat via IBC.
mkdir -p ~/projects/υ-flow/proof-of-care/cosmos/juno-contract-examples/care-registry
cd ~/projects/υ-flow/proof-of-care/cosmos/juno-contract-examples/care-registry
# Initialize with CosmWasm template
cargo generate --git https://github.com/CosmWasm/cw-template.git --name care-registry
Requires Rust + cargo and
cargo-generate.
🧬 Step 4: Modify the Contract — src/msg.rs
Make it remember:
// src/msg.rs
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct InstantiateMsg {
pub initial_message: String,
}
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum ExecuteMsg {
UpdateMessage { new_message: String },
}
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
#[serde(rename_all = "snake_case")]
pub enum QueryMsg {
// Get the current message
GetMessage {},
}
// We'll add IBC later
🧬 Step 5: Implement Logic — src/contract.rs
// src/contract.rs
use cosmwasm_std::{
Deps, DepsMut, Env, MessageInfo, Response, StdResult, Binary, QueryResponse,
};
use crate::msg::{InstantiateMsg, ExecuteMsg, QueryMsg};
use serde::{Deserialize, Serialize};
#[derive(Serialize, Deserialize, Clone, Debug, PartialEq, JsonSchema)]
pub struct State {
pub message: String,
pub owner: String,
}
// 🏁 Init
pub fn instantiate(
deps: DepsMut,
_env: Env,
_info: MessageInfo,
msg: InstantiateMsg,
) -> StdResult<Response> {
let state = State {
message: msg.initial_message,
owner: _info.sender.to_string(),
};
deps.storage.set(b"state", &state.into());
Ok(Response::new().add_attribute("method", "instantiate"))
}
// 🔄 Execute
pub fn execute(
deps: DepsMut,
_env: Env,
info: MessageInfo,
msg: ExecuteMsg,
) -> StdResult<Response> {
match msg {
ExecuteMsg::UpdateMessage { new_message } => {
let mut state: State =