Function Attribute

The @Attribute decorator is used to add an attribute to a model. It is used on an instance property.

Example

The simplest way to use it is to pass a data type as the parameter:

class User extends Model<InferAttributes<User>, InferCreationAttributes<User>> {
  @Attribute(DataTypes.STRING)
  declare firstName: string | null;
}
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Example

@Attribute also accepts an option bag, index~AttributeOptions, which allows you to configure all available attribute definition options.

class User extends Model<InferAttributes<User>, InferCreationAttributes<User>> {
  @Attribute({
    type: DataTypes.STRING,
    allowNull: false,
  })
  declare firstName: string;
}
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