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Basic-Usage.md

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To use Parity run parity ui command or head on to http://127.0.0.1:8180/ or another port specified by --ui-port PORT option. This will bring up the Parity wallet user interface that can be used to monitor Ethereum blockchain syncing progress and to use installed DApps.

The Parity User Interface

Once the syncing is complete, new transactions can be sent. Before relaying a transaction Secure Transaction Signer has to be used to sign it.

Configuration

Use parity --help to find out about available options. To avoid adding options on every run of Parity a config file. The file can be easily generated using this tool.

Networking

You can connect to the Ropsten testnet with parity --chain ropsten or to the Kovan testnet with parity --chain kovan.

You can override the normal boot nodes with --bootnodes, i.e., you might run a local bootnode and sync from that by running:

$ parity --bootnodes enode://YOU_BOOT_NODE_ID_HERE@127.0.0.1:30303

To maintain permanent connection to your own set of nodes, you can wire them with the --reserved-peers feature. Simply place all node addresses you want to connect to (enode://..., one per line) into a text file, e.g., reserved.txt, and run Parity with:

$ parity --reserved-peers /path/to/reserved.txt

JSON-RPC API

Assuming you start with JSONRPC API enabled (default), then Ethereum's JSON-RPC can be used, e.g.:

$ curl -X POST -H "Content-Type: application/json" --data '{"jsonrpc":"2.0","method":"eth_getBalance","params":["0x0037a6b811ffeb6e072da21179d11b1406371c63", "latest"],"id":1}' http://127.0.0.1:8545
{"jsonrpc":"2.0","result":"0x0406c5a45045137507eb","id":1}

JavaScript Console

Ethereum has the web3 Javascript API for interacting with an Ethereum client.

Browser developer console

The easiest way to interact with parity over the console is to use your browser and Parity's API console. Simply Head to the Applications page and hit the Console application.

Node.js CLI Console

Parity doesn't include a JavaScript interpreter but if you want to use an interactive JavaScript console, you can install node and npm and use its console. Once you have node/NPM installed, you'll just need to install the latest Web3 module:

$ npm install web3

From then on you just need to run node and require the Web3 module:

$ node
> Web3 = require("web3")
> web3 = new Web3(new Web3.providers.HttpProvider("http://localhost:8545"));

After this point, you'll be able to use the Web3 API from with this environment, e.g.:

> web3.eth.blockNumber
743397
Legacy Geth Console

As of this writing, Parity's IPC socket can be readily attached to by Geth. To do this, run Parity with IPC enabled. You can then run Geth with the attach option, just like so:

$ geth attach ~/.local/share/io.parity.ethereum/jsonrpc.ipc

It's no longer required to run Parity in --geth compatibility mode to use the Geth console.