How to use datastore-core - 10 common examples

/* eslint-env mocha */
'use strict'

const chai = require('chai')
chai.use(require('dirty-chai'))
const expect = chai.expect
const path = require('path')
const promisify = require('util').promisify
const noop = () => {}
const mkdirp = require('mkdirp')
const rimraf = promisify(require('rimraf'))
const fs = require('fs')
const fsReadFile = promisify(require('fs').readFile || noop)
const Key = require('interface-datastore').Key
const utils = require('interface-datastore').utils
const ShardingStore = require('datastore-core').ShardingDatastore
const sh = require('datastore-core').shard
const isNode = require('detect-node')

const FsStore = require('../src')

describe('FsDatastore', () => {
  if (!isNode) {
    it('only supports node.js', () => {

    })

    return
  }

  describe('construction', () => {
    it('defaults - folder missing', () => {

return new Promise((resolve, reject) => {
    const ds = ipfs._repo.datastore
    if (!ds) {
      return ipfs.once('start', () => {
        datastore(ipfs, collaboration).then(resolve).catch(reject)
      })
    }
    // resolve(ds)
    resolve(new NamespaceStore(ds, new Key(`peer-base-collab-${collaboration.fqn()}`)))
  })
}

const peerId = ipfs._peerInfo.id

    pubsubDs = new PubsubDatastore(pubsub, localDatastore, peerId)
    ipnsStores.push(pubsubDs)
  }

  // DHT should not be added as routing if we are offline or it is disabled
  if (get(ipfs._options, 'offline') || !get(ipfs._options, 'libp2p.config.dht.enabled', false)) {
    const offlineDatastore = new OfflineDatastore(ipfs._repo)
    ipnsStores.push(offlineDatastore)
  } else {
    ipnsStores.push(ipfs.libp2p.dht)
  }

  // Create ipns routing with a set of datastores
  return new TieredDatastore(ipnsStores)
}

it('sharding files', async () => {
    const dir = utils.tmpdir()
    const fstore = new FsStore(dir)
    const shard = new sh.NextToLast(2)
    await ShardingStore.create(fstore, shard)

    const file = await fsReadFile(path.join(dir, sh.SHARDING_FN))
    expect(file.toString()).to.be.eql('/repo/flatfs/shard/v1/next-to-last/2\n')

    const readme = await fsReadFile(path.join(dir, sh.README_FN))
    expect(readme.toString()).to.be.eql(sh.readme)
    await rimraf(dir)
  })

it('sharding files', async () => {
    const dir = utils.tmpdir()
    const fstore = new FsStore(dir)
    const shard = new sh.NextToLast(2)
    await ShardingStore.create(fstore, shard)

    const file = await fsReadFile(path.join(dir, sh.SHARDING_FN))
    expect(file.toString()).to.be.eql('/repo/flatfs/shard/v1/next-to-last/2\n')

    const readme = await fsReadFile(path.join(dir, sh.README_FN))
    expect(readme.toString()).to.be.eql(sh.readme)
    await rimraf(dir)
  })

it('interop with go', async () => {
    const repodir = path.join(__dirname, '/test-repo/blocks')
    const fstore = new FsStore(repodir)
    const key = new Key('CIQGFTQ7FSI2COUXWWLOQ45VUM2GUZCGAXLWCTOKKPGTUWPXHBNIVOY')
    const expected = fs.readFileSync(path.join(repodir, 'VO', key.toString() + '.data'))
    const flatfs = await ShardingStore.open(fstore)
    let res = await flatfs.get(key)
    let queryResult = flatfs.query({})
    let results = []
    for await (const result of queryResult) results.push(result)
    expect(results).to.have.length(23)
    expect(res).to.be.eql(expected)
  })

'use strict'

const chai = require('chai')
chai.use(require('dirty-chai'))
const expect = chai.expect
const path = require('path')
const promisify = require('util').promisify
const noop = () => {}
const mkdirp = require('mkdirp')
const rimraf = promisify(require('rimraf'))
const fs = require('fs')
const fsReadFile = promisify(require('fs').readFile || noop)
const Key = require('interface-datastore').Key
const utils = require('interface-datastore').utils
const ShardingStore = require('datastore-core').ShardingDatastore
const sh = require('datastore-core').shard
const isNode = require('detect-node')

const FsStore = require('../src')

describe('FsDatastore', () => {
  if (!isNode) {
    it('only supports node.js', () => {

    })

    return
  }

  describe('construction', () => {
    it('defaults - folder missing', () => {
      const dir = utils.tmpdir()

it('sharding files', async () => {
    const dir = utils.tmpdir()
    const fstore = new FsStore(dir)
    const shard = new sh.NextToLast(2)
    await ShardingStore.create(fstore, shard)

    const file = await fsReadFile(path.join(dir, sh.SHARDING_FN))
    expect(file.toString()).to.be.eql('/repo/flatfs/shard/v1/next-to-last/2\n')

    const readme = await fsReadFile(path.join(dir, sh.README_FN))
    expect(readme.toString()).to.be.eql(sh.readme)
    await rimraf(dir)
  })

it('sharding files', async () => {
    const dir = utils.tmpdir()
    const fstore = new FsStore(dir)
    const shard = new sh.NextToLast(2)
    await ShardingStore.create(fstore, shard)

    const file = await fsReadFile(path.join(dir, sh.SHARDING_FN))
    expect(file.toString()).to.be.eql('/repo/flatfs/shard/v1/next-to-last/2\n')

    const readme = await fsReadFile(path.join(dir, sh.README_FN))
    expect(readme.toString()).to.be.eql(sh.readme)
    await rimraf(dir)
  })

it('sharding files', async () => {
    const dir = utils.tmpdir()
    const fstore = new FsStore(dir)
    const shard = new sh.NextToLast(2)
    await ShardingStore.create(fstore, shard)

    const file = await fsReadFile(path.join(dir, sh.SHARDING_FN))
    expect(file.toString()).to.be.eql('/repo/flatfs/shard/v1/next-to-last/2\n')

    const readme = await fsReadFile(path.join(dir, sh.README_FN))
    expect(readme.toString()).to.be.eql(sh.readme)
    await rimraf(dir)
  })