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#### CLI Usage
```bash
$ 0x-deployer --help
0x-deployer [command]
Commands:
0x-deployer compile compile contracts
0x-deployer deploy deploy a single contract with provided arguments
Options:
--version Show version number [boolean]
--contracts-dir path of contracts directory to compile [string] [default:
"/path/to/contracts"]
--network-id mainnet=1, kovan=42, testrpc=50 [number] [default: 50]
--should-optimize enable optimizer [boolean] [default: false]
--artifacts-dir path to write contracts artifacts to [string] [default:
"/path/to/artifacts"]
--jsonrpc-port port connected to JSON RPC [number] [default: 8545]
--gas-price gasPrice to be used for transactions
[string] [default: "2000000000"]
--account account to use for deploying contracts [string]
--contracts comma separated list of contracts to compile
[string] [default: "*"]
--help Show help [boolean]
```
#### API Usage
##### Migrations
You can write migration scripts (similar to `truffle migrate`), that deploys multiple contracts and configures them. Below you'll find a simple example of such a script to help you get started.
```typescript
import { Deployer } from '@0xproject/deployer';
import * as path from 'path';
const deployerOpts = {
artifactsDir: path.resolve('src', 'artifacts'),
jsonrpcUrl: 'http://localhost:8545',
networkId: 50,
defaults: {
gas: 1000000,
},
};
const deployer = new Deployer(deployerOpts);
(async () => {
const etherToken = await deployer.deployAndSaveAsync('WETH9');
})().catch(console.log);
```
**Tip:** Be sure to start an Ethereum node at the supplied `jsonrpcUrl`. We recommend testing with [Ganache-cli](https://github.com/trufflesuite/ganache-cli)
A more sophisticated example can be found [here](https://github.com/0xProject/0x-monorepo/tree/development/packages/contracts/migrations)
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