Blockdaemon Documentation

How to Connect to Polkadot

It’s easy to connect to your Polkadot infrastructure via RPC or WebSocket.

If you haven’t already configured any Polkadot infrastructure, visit the Polkadot marketplace page to learn more about Blockdaemon’s Polkadot options.

In this guide, we will cover the following simple methods of connection to your infrastructure:

Polkadot HTTP RPC Connection via cURL
Polkadot Connection via Websocket
Polkadot Connection via Sidecar API

How to acces Your Blockdaemon Polkadot Credentials

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

1. Log into the Blockdaemon app.
2. In the Blockchain Access menu, click Nodes.
3. Click the Polkadot node.
4. Click the Connect tab.

In the Connection Information area, you’ll find the following:

- Your Endpoint URL
- Your Auth Token

Polkadot HTTP RPC Connection via cURL

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

curl curl -H "Content-Type: application/json" \
-H "X-Auth-Token: YOUR_AUTH_TOKEN" \
-d '{"id":1, "jsonrpc":"2.0", "method": "YOUR_RPC_METHOD"}' \
https://YOUR_ENDPOINT_URL/http-rpc

Replace YOUR_ENDPOINT_URL with the Endpoint URL found in the Blockdaemon app.
Replace YOUR_AUTH_TOKEN with the Auth Token found in the Blockdaemon app.
Replace YOUR_RPC_METHOD with your chosen RPC method

Polkadot Connection via WebSocket

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

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

- Replace YOUR_ENDPOINT_URL with the Endpoint URL sent found in the Blockdaemon app.
- Replace YOUR_AUTH_TOKEN with the Auth Token found in the Blockdaemon app.

Polkadot Connection via Sidecar API

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

curl -X GET -H 'Content-Type: application/json' -H 'X-Auth-Token: YOUR_AUTH_TOKEN' 'https://YOUR_ENDPOINT_URL/YOUR_SIDECAR_ENDPOINT'

- Replace YOUR_ENDPOINT_URL with the Endpoint URL found in the Blockdaemon app.
- Replace YOUR_AUTH_TOKEN with the Auth Token found in the Blockdaemon app.
- Replace YOUR_SIDECAR_ENDPOINT with your chosen REST endpoint