form0-connector-pg

Note

form0 is in active development and is available to use today. Its schema format and core concepts are stable in practice, but releases before 1.0 may include breaking changes. Pin your versions and review the release notes when upgrading. A formally stable release is coming.

form0-connector-pg stores form0 structured records in a PostgreSQL database that you control. It keeps the complete form payload as JSONB while projecting common metadata into dedicated columns and preserving parent-child relationships for repeatable sections.

🚀 Start with the CLI

The recommended integration path is form0-cli. From the interactive CLI, install and configure the connector:

form0> connector install form0-connector-pg
form0> connector configure form0-connector-pg
form0> connector test form0-connector-pg

Follow the form0 quickstart first if you do not already have a project.

📦 Direct installation

npm install form0-connector-pg

Copy the variables you need from .env.example into a local .env.local file. At minimum, configure the database name, username, and password. Do not commit .env.local or database credentials.

FORM0_CONNECTOR_PG_HOST=localhost
FORM0_CONNECTOR_PG_PORT=5432
FORM0_CONNECTOR_PG_DATABASE=form0
FORM0_CONNECTOR_PG_USERNAME=form0
FORM0_CONNECTOR_PG_PASSWORD=replace-me

The connector can also be initialized directly:

import { Form0PostgreSQLConnector } from 'form0-connector-pg';

const connector = new Form0PostgreSQLConnector();

await connector.initialize();
console.log(await connector.healthCheck());

// Pass canonical structured records to connector.onFormSubmit(record).

await connector.destroy();

initialize(config, envVars) accepts explicit configuration overrides when environment variables are not appropriate for the host application.

Schema and table names must be lowercase, unquoted PostgreSQL identifiers: they must start with a letter or underscore and contain only lowercase letters, digits, and underscores. Schema names may be up to 63 characters; table names may be up to 41 characters so the connector can safely derive its PostgreSQL index, trigger, and function names. The main and child table names must be different. Set FORM0_CONNECTOR_PG_DEBUG=true to include the configured schema and table names in lifecycle diagnostics.

Storage behavior

• The configured schema and tables are created when the connector initializes.
• Main submissions and nested repeatable-section records retain their relationships.
• Canonical structured records are accepted through onFormSubmit().
• Server timestamps are added when records are stored.
• healthCheck() reports connection health, and destroy() closes the pool.

Review schema changes and database permissions before using the connector with production data. Use a dedicated database role with only the privileges the connector needs, require TLS for remote connections, and keep credentials outside source control.

✅ Requirements

• Node.js 22 or newer
• PostgreSQL reachable from the process running the connector
• Permission to create and write the configured schema and tables

📚 Documentation

• Connectors overview
• PostgreSQL setup and configuration
• PostgreSQL storage model and operations
• Direct integration
• CLI connector management
• Direct usage example

🔒 Security

Report vulnerabilities according to SECURITY.md. For database deployments, the application remains responsible for network access, credentials, PostgreSQL authorization, backups, retention, and regulatory requirements.

🤝 Support and contributing

See SUPPORT.md for help and CONTRIBUTING.md to contribute.

📄 License

MIT