How to Connect to Ethereum

How to Access Ethereum Credentials

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Info:

If you haven't configured a node, learn how to deploy one here.

1. Log into the Blockdaemon app.
2. Select Dedicated Nodes from the sidebar menu
3. Go to the My Nodes tab and select the Ethereum node you want to connect to.
4. Navigate to the Connect tab, where you’ll find:
   1. Endpoint URL
   2. Auth String
   3. Auth Token

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

1. How to Connect via cURL

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

curl -X POST 'YOUR_ENDPOINT_URL' \
  -H 'Content-Type: application/json' \
  -H 'X-Auth-Token: YOUR_AUTH_TOKEN' \
  --data-raw '{
    "id": 1,
    "jsonrpc": "2.0",
    "method": "RPC_METHOD",
    "params": [METHOD_PARAMS]
  }'

• Replace YOUR_ENDPOINT_URL with the Endpoint URL in the Blockdaemon app.
• Replace YOUR_AUTH_TOKEN with the Auth Token found in the Blockdaemon app.
• Replace RPC_METHOD with your chosen RPC method.
• Replace METHOD_PARAMS with the necessary parameters for your RPC.

2. How to Connect via GraphQL

curl -X POST 'https://YOUR_ENDPOINT_URL/graphql' \
  -H 'Content-Type: application/json' \
  -H 'X-Auth-Token: YOUR_AUTH_TOKEN' \
  --data-raw '{
    "query": "{ block(number: ######) { hash transactionCount timestamp } }"
  }'

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

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Note:

For details on how to query a node, refer to the Ethereum - How To Query a Node documentation.

3. How to Connect via WebSocket

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

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

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Note:

wscat is a tool that can connect over websockets 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.