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Depending on the SQL database you selected, a src/<database>.ts file will be created that sets up a connection using KnexJS. It uses the connection settings from the <database> configuration value and exports a configure function that initializes the database connection. The Knex connection object is then accessible wherever you have access to the app object via

const knex = app.get('<database>Client')

The database pool size can be set in the configuration like this:

"postgresql": {
  "client": "pg",
  "connection": "<pg connection string>",
  "pool": {
    "min": 0,
    "max": 7

connection can also be an object instead of a connection string:

"postgresql": {
  "client": "pg",
  "connection": {
    "host": "localhost",
    "port": 5432,
    "user": "postgres",
    "password": "postgres",
    "database": "pgtest"


KnexJS does not have a concept of models. Instead a new service is initialized with the table name and app.get('<database>Client') as the connection. For more information on how to create custom queries and more, see the SQL database adapter API documentation.

Released under the MIT License.