@forrestjs/service-pg

ForrestJS service which keeps a pooled connection to a PostgreSQL database. It's a wrapper around pg library.

Usage

You can run the $PG_READY extension to execute SQL logic at boot time:

const myFeature = {
  target: '$PG_READY',
  handler: async ({ query }) => {
    const res = await query('SELECT NOW()');
    console.log(res.rows);
  },
};

Or you can get a reference to the query function or the pool object from the context:

const myFeature = {
  target: '$START_FEATURE',
  handler: async ({ getContext }) => {
    const query = getContext('pg.query');
    await query('CREATE TABLE IF NOT EXISTS...');
  },
};

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Configuration

pg.connectionString

Falls back on env PGSTRING.

pg.exitOnError

Falls back on env SERVICE_PG_EXIT_ON_ERROR.

pg.maxConnections

Falls back on env SERVICE_PG_MAX_CONNECTIONS.

pg.poolConfig

Any configuration that you can give to the library pg.

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Environment

PGSTRING

Standard connectivity string for PostgreSQL

PGSTRING=postgres://postgres:postgres@localhost:5432/postgres

SERVICE_PG_EXIT_ON_ERROR

If set to true the library will crash the project in case connectivity is lost. Default is false.

SERVICE_PG_MAX_CONNECTIONS

Max number of pooled connections to the database server. Default is 10.