trino-js-client

A Trino client for Node.js.

Features

• Connections over HTTP or HTTPS
• Supports HTTP Basic Authentication
• Per-query user information for access control

Requirements

• Node 12 or newer.
• Trino 0.16x or newer.

Install

npm install trino-client or yarn add trino-client

Usage

For additional info on all available methods and types have a look at the API docs here.

Create a Trino client

const trino: Trino = Trino.create({
  server: 'http://localhost:8080',
  catalog: 'tpcds',
  schema: 'sf100000',
  auth: new BasicAuth('test'),
});
Copy

Submit a query

const iter: Iterator<QueryResult> = await trino.query(
  'select * from customer limit 100'
);
Copy

Iterate through the query results

for await (const queryResult of iter) {
  console.log(queryResult.data);
}
Copy

Alternative: map and aggregate the data

const data: QueryData[] = await iter
  .map(r => r.data ?? [])
  .fold<QueryData[]>([], (row, acc) => [...acc, ...row]);
Copy

Examples

More usage examples can be found in the integration tests.

Filipe Regadas (regadas) 2022