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    app.js bitcoin.js blockchain.js chain.js cli.js collection.js fabric.js game.js heartbeat.js http.js index.js network.js oracle.js p2pkh.js relay.js service.js store.js swarm.js witness.js
  • ¶

    Storing Data in Fabric

  • ¶

    One of Fabric’s utilities is as a storage layer for your application. By using the Fabric.Store constructor, you can interact with the network as if it were local storage.

    In this example, we’ll run a single process main() demonstrating common interactions with Fabric’s Storage Engine.

    'use strict';

const Fabric = require('../');
const name = 'martindale';
const key = new Fabric.Key();
const pointer = require('json-pointer');
  • ¶

    Primary Process

    Here, we define our main process.

    async function main () {
  let fabric = new Fabric({
    name: '@fabric/examples/store',
    path: './data/examples',
    persistent: false
  });
  • ¶

    Start the Fabric instance, and log any errors.

      await fabric.start().catch(fabric.error.bind(fabric));
  • ¶

    Let’s use /players as the “address” for a collection of data.

      let mem = `/players`;
  let path = pointer.escape(mem);
  let router = Fabric.sha256(path);
  • ¶

    Use _POST(collection, item) to insert an item into a named collection for later retrieval.

      let link = await fabric._POST(mem, {
    name: name,
    key: key['@data']
  }).catch(fabric.error.bind(fabric));

  console.log('[HTTP]', 201, 'Created', 'link:', `fabric:${link}`);
  console.log('link:', link);

  let player = await fabric._GET(link).catch(fabric.error.bind(fabric));
  console.log('player:', player);

  let players = await fabric._GET(mem).catch(fabric.error.bind(fabric));
  let collection = await fabric._GET(`/collections/${router}`).catch(fabric.error.bind(fabric));
  • ¶

    clean up after ourselves

      await fabric.stop().catch(fabric.error.bind(fabric));

  console.log('players:', players);
  console.log('collection:', collection);
  • ¶

    console.log(‘fabric:’, fabric); console.log(‘state:’, fabric.store.state); console.log(‘players:’, players.constructor.name, players);

    }

try {
  main();
} catch (E) {
  console.trace(E);
}