knexfile.js

module.exports = {
  development: {
    client: "sqlite3",
    useNullAsDefault: true,
    connection: {
      filename: "./data/emails.db3"
    },
    migrations: {
      directory: "./data/migrations"
    },
    seeds: {
      directory: "./data/seeds"
    },
    pool: {
      "min": 2,
      "max": 100,
      "createTimeoutMillis": 3000,
      "acquireTimeoutMillis": 30000,
      "idleTimeoutMillis": 30000,
      "reapIntervalMillis": 1000,
      "createRetryIntervalMillis": 100,
      "propagateCreateError": false,
      afterCreate: (conn, done) => {
        conn.run("PRAGMA foreign_keys = ON", done);
      }
    }
  },

  production: {
    client: "pg",
    connection: process.env.DATABASE_URL,
    migrations: {
      tableName: "knex_migrations",
      directory: "./data/migrations"
    },
    seeds: {
      directory: "./data/seeds"
    }
  },

  testing: {
    client: "sqlite3",
    connection: { filename: "./data/testemails.db3" },
    useNullAsDefault: true,
    migrations: {
      directory: "./data/migrations"
    },
    seeds: { directory: "./data/seeds" }
  }
};