What is an Entity?

• Langstack applications support Entities to store data.

• Using the Entity template, users can create database entities to store, display and access data.

• Users may create an Entity by defining the fields for the entity.

• An Entity may be created, updated, copied, or deleted.

• Users can define two (2) types of relationships between Entities:

  • One-to-One (1-to-1): One Parent Entity can be related to One Child Entity

  • One-to-Many (1-to-M): One Parent Entity record can be related to multiple child records in another Entity.

• An Entity may be configured with a Validation pipeline for data creation or update. The Validation pipeline serves as a series of checks before the data is stored in the target Entity.

• Triggers can be added and configured to perform operations when data is created, updated, or deleted in an Entity.

• Data within Entities can be accessed independently and through Langstack applications such as APIs, Flows, and ETL pipelines.

How to create and work with an Entity

To create an Entity:

• Click on Database>Entity database on the left side panel.

• Click on the [+ Entity] button.

• Add and define relevant fields.

• Click the [Save] button.