How to Connect to Optimism

In this guide, we will cover the following connection methods:

• How to Connect to Optimism HTTP RPC via cURL
• Optimism Connection via WebSocket

👍

Note:

Visit the Optimism marketplace page to explore Blockdaemon’s Optimism infrastructure.

How to Access Your Blockdaemon Optimism Credentials

Once you have purchased your Blockdaemon Optimism infrastructure, you can access your credentials:

1. Log into the Blockdaemon app.
2. Click Nodes under the Access menu.
3. Select the Optimism node.
4. Select the Connect tab. You'll find the following information:
   1. Endpoint URL
   2. Auth String
   3. Auth Token

📘

Info:

Please reach out to [email protected] or your Customer Success Manager for support.

How to Connect to Optimism HTTP RPC via cURL

Here's how you add your access credentials to a cURL request:

curl --location --request POST 'YOUR_ENDPOINT_URL' \ --header 'X-Auth-Token: YOUR_AUTH_TOKEN' \ --header 'Content-Type: application/json' \ --data-raw '{ "jsonrpc": "2.0", "method": "YOUR_RPC_METHOD", "params": YOUR_PARAMS }' 

• Replace YOUR_ENDPOINT_URL with the Endpoint URL in the Blockdaemon app.
• Replace YOUR_AUTH_TOKEN with the Auth Token in the Blockdaemon app.
• Replace YOUR_RPC_METHOD with your chosen RPC method.
• Replace YOUR_PARAMS with the necessary params for your RPC.

Optimism Connection via WebSocket

wscat -H "X-Auth-Token: YOUR_AUTH_TOKEN" -c wss://YOUR_ENDPOINT_URL:8443/websocket

• Replace YOUR_AUTH_TOKEN with the Auth Token in the Blockdaemon app.
• Replace YOUR_ENDPOINT_URL with the Endpoint URL in the Blockdaemon app.

📘

Info:

wscat is a tool that can connect over WebSocket(s) and may need to be installed. You can use your preferred tool of choice.

👋 Need Help?

Contact us through email or our support page for any issues, bugs, or assistance you may need.