Winding Tree Off Chain Data Adapter - In memory


Very simple in-memory key-value storage that can be used in
Winding Tree wt-js-libs.

Installation

``sh
npm install @windingtree/off-chain-adapter-in-memory


or


git clone https://github.com/windingtree/off-chain-adapter-in-memory
nvm install
npm install
`

Usage

`javascript
import { WtJsLibs } from '@windingtree/wt-js-libs';
import InMemoryAdapter from '@windingtree/off-chain-adapter-in-memory';

const libs = WtJsLibs.createInstance({
onChainDataOptions: {
provider: 'http://localhost:8545',
},
offChainDataOptions: {
adapters: {
'in-memory': {
options: {
// some: options
}
create: (options) => {
return new InMemoryAdapter(options);
},
},
},
},
});
const index = await libs.getWTIndex('hotels', '0x...');
const hotel = await index.getHotel('0x...');
// Accessing off-chain data - url is actually stored on chain
const hotelDescriptionUrl = await (await hotel.dataIndex).ref;
// This data is fetched from some off-chain storage
const hotelDescription = await (await hotel.dataIndex).contents.description;
const hotelName = await hotelDescription.contents.name;
``