polkadotjs-proxy

This server acts as a bridge for systems to communicate with Polkadot's WSS endpoints using the pure PolkadotJS API functionality, allowing seamless interaction without the need for native support.

Overview

The polkadotjs-proxy enables communication to the RPC proxy on the specified port. Example JSON command can be found below:

{
    "type": "query",
    "namespace": "system",
    "method": "account",
    "params": ["5FHneW46xGXgs5mUiveU4sbTyGBzmstUspZC92UhjJM694ty"],
    "network": "wss://rpc.ibp.network/kusama",
    "blockHash": "0xabc123"
}

(Note: Please remove the extra backslashes \ before the backticks around the JSON code block.)

The type, namespace, method, params, network, and blockHash are input variables. This proxy facilitates queries and interactions with the Polkadot nodes.

Dependencies

• Node.js
• Express
• @polkadot/api

Compilation & Launch Instructions

1. Ensure you have Node.js installed.
2. Install the necessary npm packages:

npm install

3. Run the server using the server.js file:

node server.js

4. Launch using systemd:

   • Create a systemd service file, e.g., /etc/systemd/system/polkadotjs-proxy.service:

[Unit]
Description=PolkadotJS Proxy Server

[Service]
ExecStart=/usr/bin/node /path/to/your/server.js
Restart=always
User=your_username
Group=your_group
Environment=PATH=/usr/bin:/usr/local/bin
WorkingDirectory=/path/to/your/directory

[Install]
WantedBy=multi-user.target

• Reload systemd:

sudo systemctl daemon-reload

• Start the service:

sudo systemctl start polkadotjs-proxy

• (Optional) Enable on boot:

sudo systemctl enable polkadotjs-proxy

Note: Replace /path/to/your/ with the actual path to your server.js file and adjust User and Group as necessary.