Table has a
context of properties that are blended with
Model properties before executing APIs. The context is used to provide keys and attributes that apply to more than just one API invocation. A typical use case is for a central authorization module to add an
userId to the context which is then used in keys for items belonging to that account or user. This is useful for multi-tenant applications.
When creating items, context properties are written to the database. When updating, context properties are not, only explicit attributes provided in the API
properties parameter are written.
Context properties take precedence over supplied
properties. This is to prevent accidental updating of context keys. To force an update of context attributes, provide the context properties either by updating the context via
Table.addContext, replacing the context via
Table.setContext or supplying an explicit context via
params.context to the individual API.
Table.setContext method to initialize the context and
Table.clear to reset.