Function construct

drizzle-orm/src/vercel-postgres/driver.ts:48–85

(
	client: VercelPgClient,
	config: DrizzleConfig<TSchema> = {},
)

}

function construct<TSchema extends Record<string, unknown> = Record<string, never>>(
	client: VercelPgClient,
	config: DrizzleConfig<TSchema> = {},
): VercelPgDatabase<TSchema> & {
	$client: VercelPgClient;
} {
	const dialect = new PgDialect({ casing: config.casing });
	let logger;
	if (config.logger === true) {
		logger = new DefaultLogger();
	} else if (config.logger !== false) {
		logger = config.logger;
	}

	let schema: RelationalSchemaConfig<TablesRelationalConfig> | undefined;
	if (config.schema) {
		const tablesConfig = extractTablesRelationalConfig(
			config.schema,
			createTableRelationsHelpers,
		);
		schema = {
			fullSchema: config.schema,
			schema: tablesConfig.tables,
			tableNamesMap: tablesConfig.tableNamesMap,
		};
	}

	const driver = new VercelPgDriver(client, dialect, { logger, cache: config.cache });
	const session = driver.createSession(schema);
	const db = new VercelPgDatabase(dialect, session, schema as any) as VercelPgDatabase<TSchema>;
	(<any> db).$client = client;
	(<any> db).$cache = config.cache;
	if ((<any> db).$cache) {
		(<any> db).$cache['invalidate'] = config.cache?.onMutate;
	}

	return db as any;
}

export function drizzle<
	TSchema extends Record<string, unknown> = Record<string, never>,