Dataset

Dataset is a secondary unit in Glacier, similar to the MongoDB database, but each Dataset must belong to a Namespace.

The code for creating Dataset is as follows, you need to get Namespace to which it belongs through client.namespace(name) firstly:

src/createDataset.ts

async function createDataset() {
  const myproject = client.namespace('myproject');
  const result = await myproject.createDataset('mydataset');
  console.log(result);
}

Output result:

{
  insertedId: 'mydataset';
}

If you want to query the details of a Dataset, you can use the queryDataset method provided by Namespace, the example is as follows:

src/queryDataset.ts

async function queryDataset() {
  const myproject = client.namespace('myproject');
  const result = await myproject.queryDataset('mydataset');
  console.log(result);
}

Output result:

{
  owner: '0xb4c42d4b15aa65f782b81ac01eaba2472f83b4e9',
  network: 'ethereum',
  namespace: 'myproject',
  dataset: 'mydataset',
  seqId: 0,
  collections: [
    {
      collection: 'notes',
      owner: '0xb4c42d4b15aa65f782b81ac01eaba2472f83b4e9',
      network: 'ethereum',
      schema: '{"title":"notes","type":"object","properties":{"title":{"type":"string","title":"","description":""},"content":{"type":"string","title":"","description":""},"createdAt":{"type":"number","title":"","description":""}},"required":["title","content","createdAt"]}',
      seqId: 0,
      createdAt: 1672069218,
      updatedAt: 1672069218
    }
  ],
  createdAt: 1672036876,
  updatedAt: 1672069218
}

collections from the above codes is Collection contained in this Dataset.