expose ws port for testnet (#428)

* expose ws port

* include jsonrpc and ws docs

* Apply suggestions from code review

Co-authored-by: Federico Kunze <31522760+fedekunze@users.noreply.github.com>

docker-compose.yml

@@ -8,6 +8,7 @@ services:
       - "26656-26657:26656-26657"
       - "1317:1317"
       - "8545:8545"
+      - "8546:8546"
     environment:
       - ID=0
       - LOG=${LOG:-emintd.log}
@@ -25,6 +26,7 @@ services:
       - "26659-26660:26656-26657"
       - "1318:1317"
       - "8546:8545"
+      - "8546:8546"
     environment:
       - ID=1
       - LOG=${LOG:-emintd.log}
@@ -45,6 +47,7 @@ services:
       - "26661-26662:26656-26657"
       - "1319:1317"
       - "8547:8545"
+      - "8546:8546"
     volumes:
       - ./build:/ethermint:Z
     networks:
@@ -62,6 +65,7 @@ services:
       - "26663-26664:26656-26657"
       - "1320:1317"
       - "8548:8545"
+      - "8546:8546"
     volumes:
       - ./build:/ethermint:Z
     networks:

docs/quickstart/testnet.md

@@ -233,6 +233,27 @@ example:
 docker logs -f emintdnode0
 ```
 
+### Interact With the Testnet
+
+#### Ethereum JSON RPC & Websocket Ports
+
+To interact with the testnet via WebSockets or RPC/API, you will send your request to the corresponding ports:
+
+| Eth JSON-RPC | Eth WS | 
+|--------------|--------|
+|    `8545`    | `8546` |
+
+You can send a curl command such as:
+
+```bash
+curl -X POST --data '{"jsonrpc":"2.0","method":"eth_accounts","params":[],"id":1}' -H "Content-Type: application/json" 192.162.10.1:8545
+```
+::: tip
+The IP address will be the public IP of the docker container.
+:::
+
+Additional instructions on how to interact with the WebSocket can be found on the [events documentation](./events.md#ethereum-websocket).
+
 ### Keys & Accounts
 
 To interact with `emintcli` and start querying state or creating txs, you use the

networks/local/ethermintnode/Dockerfile

@@ -26,7 +26,7 @@ COPY --from=build-env /go/src/github.com/ChainSafe/ethermint/build/emintd /usr/b
 COPY --from=build-env /go/src/github.com/ChainSafe/ethermint/build/emintcli /usr/bin/emintcli
 COPY --from=build-env /go/src/github.com/ChainSafe/ethermint/scripts/start.sh /
 
-EXPOSE 26656 26657 1317 8545
+EXPOSE 26656 26657 1317 8545 8546
 
 # Run emintd by default, omit entrypoint to ease using container with emintcli
 ENTRYPOINT ["/bin/bash", "-c"]