get user role on authProvider
I have authProvider with supabase client
how can I get user's role. I have called the function console.log(authProvider.getPermissions()); but it return a promise
11 Replies
Hi @tandeptraiso1. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
----------------------
The
getPermissions
method in authProvider
is an asynchronous function, which means it returns a Promise. To get the actual value (user's role in this case), you need to use the await
keyword or .then()
method to resolve the Promise.
Here's how you can do it:
Or using async/await:
Remember, await
can only be used inside an async
function.
For more information, refer to the getPermissions
documentation (https://refine.dev/docs/api-reference/core/providers/auth-provider/).
----------------------
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eastern-cyanOP•14mo ago
@kapa.ai Cannot invoke an object which is possibly 'undefined'
Let me check the knowledge base for you. One moment! :books:
----------------------
This error typically occurs when you're trying to call a function or access a property on an object that might not exist at runtime. In JavaScript and TypeScript, this can happen when the object or its property is
undefined
.
In the context of React and Refine, this error often occurs when trying to use hooks or properties before they are defined. For example, if you're using the useForm
or useStepsForm
hooks in Refine, they return an object that includes formProps
. If you try to use formProps
before it's defined, you'll get this error.
Here's an example of how to correctly use formProps
:
In this example, formProps
is destructured from the object returned by useForm
, and then passed to the Form
component. This ensures that formProps
is defined before it's used.
If you're dealing with potentially undefined values in your state, you can use optional chaining (?.
) to safely access nested properties. For example, user?.names?.firstName
would not throw an error or break the page because once it detects that the user or names object is missing, it immediately terminates the operation.
For more information, refer to the Refine Discord support thread (https://discord.com/channels/837692625737613362/1131579446877487135) and the Refine blog post on common useState mistakes (https://refine.dev/blog/common-usestate-mistakes-and-how-to-avoid/).
----------------------
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eastern-cyanOP•14mo ago
@kapa.ai Cannot invoke an object which is possibly 'undefined'.ts
(property) getPermissions?: ((params?: any) => Promise<unknown>) | undefined
Let me check the knowledge base for you. One moment! :books:
----------------------
This error message is indicating that the
getPermissions
function could potentially be undefined
. This can happen if the authProvider
you're using doesn't have a getPermissions
method, or if it's not yet initialized when you're trying to call it.
To avoid this error, you should check if getPermissions
is defined before calling it. You can do this using an if
statement or the optional chaining operator (?.
).
Here's how you can do it with an if
statement:
And here's how you can do it with optional chaining:
In both examples, the getPermissions
function is only called if it's defined. This prevents the error message you're seeing.
For more information, refer to the Refine Discord support thread (https://discord.com/channels/837692625737613362/1131579446877487135) and the Refine blog post on common useState mistakes (https://refine.dev/blog/common-usestate-mistakes-and-how-to-avoid/).
----------------------
Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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eastern-cyanOP•14mo ago
@kapa.ai
now I can get the role, thank you. Here is the next requirement.
I have 3 role with these action
admin -> view, insert, update, delete
editor -> view,insert,update
reador -> view
How can set these action for each role?
Let me check the knowledge base for you. One moment! :books:
----------------------
To set these actions for each role, you can use the
accessControlProvider
prop in the Refine
component. This prop accepts an object with a can
method, which is used to control whether the requested access is granted. This method takes resource
and action
as parameters.
You can use a library like Casbin to define and enforce your access control policies. Here's an example of how you can define a model and a policy for a role:
In this example, the admin
role has access to all actions (*
), the editor
role has access to view
, insert
, and update
actions, and the reader
role only has access to view
action.
Then, you can implement the can
method for accessControlProvider
:
In this example, the can
method uses a newEnforcer
function from Casbin to enforce the access control rules based on the user's role, resource, and action.
For more information, refer to the Refine Discord support thread (https://discord.com/channels/837692625737613362/1164521918926442576) and the Refine blog post on implementing Role Based Access Control (https://refine.dev/blog/refine-pixels-6/).
----------------------
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