Winding Tree Off Chain Data Accessor - In memory
Very simple in-memory key-value storage that can be used in Winding Tree wt-js-libs.
Installation
npm install @windingtree/off-chain-accessor-in-memory
# or
git clone https://github.com/windingtree/off-chain-accessor-in-memory
nvm install
npm install
Usage
import WTLibs from '@windingtree/wt-js-libs';
import InMemoryAccessor from '@windingtree/off-chain-accessor-in-memory';
const libs = WTLibs.createInstance({
dataModelOptions: {
provider: 'http://localhost:8545',
},
offChainDataOptions: {
accessors: {
json: {
options: {
// some: options
}
create: (options) => {
return new InMemoryAccessor(options);
},
},
},
},
});
const index = await libs.getWTIndex('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;