What does it do?
Instead of relying on a single connection between your Chainlink node and an ETH node (your own or EaaS), you can use this proxy to fail over between multiple ETH nodes. All endpoints are just URLs, so there's no need for the nodes to be on the local network.
- Automatic failover for any number of ETH nodes
- Connection timeouts
- Automatically checks if it's receiving block header notifications
How to use
Pull the image from Docker:
docker pull fiews/cl-eth-failover
Start the container: (Read more in Usage to learn how to set multiple endpoints)
docker run fiews/cl-eth-failover wss://cl-ropsten.fiews.io/v1/yourApiKey
To start off, you need Yarn/Node.js installed (and git, for cloning the repo).
Clone repository and enter directory:
git clone https://github.com/OracleFinder/ChainlinkEthFailover.git && cd ChainlinkEthFailover/
Make sure we set the correct permissions:
chmod +x ./index.js
This proxy will add any arguments to the script as ETH node endpoints.
docker run fiews/cl-eth-failover [node-1] [node-2] [...] [node-n]
If not using Docker, replace
docker run fiews/cl-eth-failover with
Example start command:
docker run fiews/cl-eth-failover wss://cl-ropsten.fiews.io/v1/myApiKey ws://localhost:8546/
This will output the following:
Adding endpoint wss://cl-ropsten.fiews.io/v1/myApiKey to list Adding endpoint ws://localhost:8546/ to list Server is listening on port :4000
To use this proxy with your Chainlink node, just set the
ETH_URL environment variable to port 4000 of the instance
that's running the proxy. Eg.