create a connection pool with snowflake sdk in javascript in javascript

To create a connection pool with the Snowflake SDK in JavaScript, you can use a library like generic-pool to manage the pool of connections. Here's an example code snippet:

index.tsx
const snowflake = require('snowflake-sdk');
const { Pool } = require('generic-pool');

// Create a new connection configuration
const config = {
  account: 'your-account-url',
  username: 'your-username',
  password: 'your-password',
  warehouse: 'your-warehouse',
  database: 'your-database',
  schema: 'your-schema',
};

// Create a factory function to create connections
const factory = {
  create: async function () {
    const connection = snowflake.createConnection(config);
    await connection.connect();
    return connection;
  },
  destroy: function (connection) {
    connection.destroy();
  },
};

// Set up the pool with the factory and connection options
const pool = new Pool(factory, {
  max: 10, // maximum number of connections
  min: 1, // minimum number of connections
  idleTimeoutMillis: 30000, // how long a connection is allowed to stay idle in the pool
});

// Acquire a connection from the pool
pool.acquire().then(async (connection) => {
  try {
    // Execute queries using the connection
    const statement = 'SELECT * FROM your_table';
    const result = await connection.execute({
      sqlText: statement,
    });
    console.log(result);

    // Release the connection back to the pool
    pool.release(connection);
  } catch (error) {
    console.error('Error occurred:', error);
    // Destroy the connection if an error occurs
    pool.destroy(connection);
  }
});

1403 chars
51 lines

In the code above, we first import the snowflake-sdk library and the generic-pool library. Then, we create a new connection configuration object with your Snowflake credentials.

Next, we define a factory object with a create function that creates new connections and a destroy function that destroys connections. Inside the create function, a new Snowflake connection is created and connected.

After that, we create a new instance of Pool from generic-pool. We specify the maximum number of connections, the minimum number of connections, and the idle timeout for connections in the pool.

Finally, we acquire a connection from the pool using pool.acquire(), execute queries using the acquired connection, and then release or destroy the connection based on the result or any error that occurred.

Note: Make sure to replace 'your-account-url', 'your-username', 'your-password', 'your-warehouse', 'your-database', 'your-schema', and 'your_table' with your actual Snowflake account URL, username, password, warehouse, database, schema, and table name.

similar javascript code snippets

how to use useeffect in javascript
how to create a proxy variable in javascript
how to create fibonacci in javascript
how to parse a json string in javascript
how to use usestate in javascript
loop in javascript
create a loop in javascript
loop from 1 to 10 in javascript
create a react context in javascript
how to create a rest api in javascript

related categories

snowflake
connection-pool
javascript

gistlibby LogSnag