Row-Level Authorization
Row-level authorization enables control over specific rows of an entity based on user roles, ownership, or custom logic. This feature is essential for applications that need fine-grained permissions.
Consider the following example:
Understanding Each Authorization Option
-
allowApiRead: true
allowApiRead
controls whether rows are accessible for reading through the API, and it defaults totrue
, unlike other options that default tofalse
.- Although you cannot use an arrow function with
allowApiRead
to restrict specific rows, this can be achieved using row-level filters, which we’ll cover in the next lesson, “Filtering Rows Based on User Permissions”.
-
allowApiInsert: remult.authenticated
- Restricts the ability to create new tasks to authenticated users. Any user who is not logged in will be denied insert access.
-
allowApiDelete: 'admin'
- Limits deletion of tasks to users with the
admin
role, preventing other users from deleting tasks through the API.
- Limits deletion of tasks to users with the
-
allowApiUpdate
with Conditional Logic- The
allowApiUpdate
option here uses an arrow function to set conditional update access based on role and ownership: - This configuration allows:
- Admin users to update any task, and
- Non-admin users to update only their own tasks, identified by matching
task.ownerId
to the current user’s ID.
- Such logic provides flexibility for controlling access at a granular level, aligning permissions with both general access and specific ownership.
- The
Versatility Across Options
Each of these options—allowApiRead
, allowApiInsert
, allowApiDelete
, and allowApiUpdate
—can accept different inputs to define permissions:
- Boolean values (
true
orfalse
) for universal access or denial. - Role strings or arrays of roles (e.g.,
'admin'
or['admin', 'manager']
) for access control based on user roles. - Arrow functions for
allowApiInsert
,allowApiDelete
, andallowApiUpdate
, providing custom logic based on roles, user IDs, or specific row attributes.
In the upcoming lesson, “Filtering Rows Based on User Permissions”, we’ll explore how to apply row-level access control dynamically, allowing each user to view only the rows they are permitted to access using specific filters.
Files
Preparing Environment
- Installing dependencies
- Starting http server