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Describe provider-engine in the README

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Alex Beregszaszi 2016-03-25 01:09:57 +00:00
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README.md
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@ -87,6 +87,18 @@ Instance methods:
* `deriveChild(index)` - derive a node based on a child index
* `getWallet()` - return a `Wallet` instance as seen above
## Provider Engine
The Wallet can be easily plugged into [provider-engine](https://github.com/metamask/provider-engine) to provide signing:
```js
const WalletSubprovider = require('ethereumjs-wallet/provider-engine')
<engine>.addProvider(new WalletSubprovider(<wallet instance>))
```
Note it only supports the basic wallet. With a HD Wallet, call `getWallet()` first.
### Remarks about `toV3`
The `options` is an optional object hash, where all the serialization parameters can be fine tuned: