docs: add details for IBC Testing with Emerynet and Local Chain

README.md

@@ -53,24 +53,132 @@ $ docker-compose -f docker-compose-testnet.yaml up -d
 ## Transfer IBC tokens
 
 Get the new channel ID got created from the relayer logs.
+
 ```
 docker logs relayer
 ```
+
 Use the new channel ID in the following command to transfer tokens from Emerynet to Devnet using IBC relayer.
 
 ```
 $ docker exec relayer hermes --config /workspace/relayer/config-testnet.toml tx ft-transfer --src-chain agoric-emerynet-8 --src-channel <Channel-ID> \
  --dst-chain agoricdev-23 --src-port transfer --amount 100 --denom 'ubld' --timeout-seconds 1000
 ```
 
-Verify the account balances to confirm the transfer for both Emerynet and Devnet. 
+Verify the account balances to confirm the transfer for both Emerynet and Devnet.
 
 On devnet
+
 ```
 agd query bank balances agoric1khw65emzav9t0cdhj3aw9x2v7m60jekjdf4whl
 ```
 
 On emerynet
+
 ```
 agd query bank balances agoric10emrzln03exuc9uv98mjwmp95735mjm6k2n9xm
 ```
+
+# IBC Testing with Emerynet and Local Chain
+
+## Start the local chain
+
+First, start your local chain using this command:
+
+```
+docker-compose -f docker-compose-testnet.yaml up -d agoric-local
+```
+
+## Check Local Chain Logs
+
+To confirm that the local chain is running, monitor its logs:
+
+```
+docker logs agoric-local -f
+```
+
+Once you see messages showing blocks with a status of commit you can rest assured the chain is running properly:
+
+```
+2023-12-27T04:08:06.384Z block-manager: block 1003 begin
+2023-12-27T04:08:06.386Z block-manager: block 1003 commit
+2023-12-27T04:08:07.396Z block-manager: block 1004 begin
+2023-12-27T04:08:07.398Z block-manager: block 1004 commit
+2023-12-27T04:08:08.405Z block-manager: block 1005 begin
+2023-12-27T04:08:08.407Z block-manager: block 1005 commit
+```
+
+## Start the Relayer
+
+Next, start the Hermes relayer using this command:
+
+```
+docker-compose -f docker-compose-testnet.yaml up -d relayer
+```
+
+## Check Relayer Logs
+
+Check the relayer's logs using this command:
+
+```
+docker logs relayer -f
+```
+
+### What to Look For
+
+1. `Channel Initialization (OpenInitChannel)`: Watch for log entries indicating the start of a channel setup, such as:
+
+```
+2024-07-18T10:15:15.194536Z  INFO ThreadId(01) 🎊  agoric-emerynet-8 => OpenInitChannel(OpenInit { port_id: transfer, channel_id: channel-51, connection_id: None, counterparty_port_id: transfer, counterparty_channel_id: None }) at height 8-6169496
+```
+
+Note the channel_id (e.g., `channel-51`) from these entries, as it will be used in the follow-up steps.
+
+2. `Channel Confirmation (OpenConfirmChannel)`: Ensure that the channel setup has been confirmed with a log entry like:
+
+```
+2024-07-18T10:17:09.873013Z  INFO ThreadId(01) 🎊  agoricdev-23 => OpenConfirmChannel(OpenConfirm { port_id: transfer, channel_id: channel-42, connection_id: connection-45, counterparty_port_id: transfer, counterparty_channel_id: channel-51 })
+```
+
+This confirmation is critical before attempting any transactions.
+
+## Transfer IBC tokens
+
+### Step 1: Retrieve the Channel ID
+
+First, ensure you have the new channel ID from the relayer logs (from the previous steps), such as `channel-51`.
+
+### Step 2: Execute the Transfer Command
+
+Use the channel ID to execute the following command. Replace <Channel-ID> with the actual channel ID you noted earlier:
+
+```
+$ docker exec relayer hermes --config /workspace/relayer/config-testnet.toml tx ft-transfer --src-chain agoric-emerynet-8 --src-channel <Channel-ID> \
+ --dst-chain agoric-local --src-port transfer --amount 100 --denom 'ubld' --timeout-seconds 1000
+```
+
+This command transfers 100 units of the `ubld` token from Emerynet to Local Chain.
+
+If you need to transfer tokens from the Local Chain to Emerynet, you can use the `counterparty_channel_id` found in the logs. For reversing transfers, the command would typically use `channel-0` as follows:
+
+```
+docker exec relayer hermes --config /workspace/relayer/config-testnet.toml tx ft-transfer --src-chain agoric-local --src-channel channel-0 \
+ --dst-chain agoric-emerynet-8 --src-port transfer --amount 100 --denom 'ubld' --timeout-seconds 1000
+
+```
+
+### Step 3: Verify the Transfer
+
+Confirm that the transfer was successful by checking the account balances on both chains.
+
+- **On local**:
+
+```
+curl http://localhost:1317/cosmos/bank/v1beta1/balances/agoric1myfpdaxyj34lqexe9cypu6vrf34xemtfq2a0nt
+```
+
+- **On emerynet**
+
+```
+curl https://emerynet.api.agoric.net/cosmos/bank/v1beta1/balances/agoric10emrzln03exuc9uv98mjwmp95735mjm6k2n9xm
+```