rbac in supabase

unique-blue · 2024-04-13T20:01:30.184Z

Can i have rbac on the whole application and then rbac within a module of that application

K

kapa.ai•4/13/24, 8:01 PM

Hi @venom. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base.

K

kapa.ai•4/13/24, 8:01 PM

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Yes, you can implement Role-Based Access Control (RBAC) on both the whole application and within a specific module of that application using Refine and Supabase.

In Refine, user roles are fetched by the

authProvider

authProvider

authProvider

authProvider's

getPermissions()

getPermissions()

getPermissions()

getPermissions() method. This method is already defined for you by

@refinedev/supabase

@refinedev/supabase

@refinedev/supabase

@refinedev/supabase. However, Supabase does not support setting user roles to

users

users

in the

auth.users

auth.users

auth.users

auth.users table by default. Therefore, you need to set up custom user roles using Supabase Custom Claims[^1^].

Here's an example of how the

getPermissions()

getPermissions()

getPermissions()

getPermissions() method looks like:

getPermissions: async () => {  
 const user = await supabaseClient.auth.getUser();  
  
 if (user) {  
 return user.data.user?.role;  
 }  
  
 return null;  
};

getPermissions: async () => {  
 const user = await supabaseClient.auth.getUser();  
  
 if (user) {  
 return user.data.user?.role;  
 }  
  
 return null;  
};

getPermissions: async () => {  
 const user = await supabaseClient.auth.getUser();  
  
 if (user) {  
 return user.data.user?.role;  
 }  
  
 return null;  
};

getPermissions: async () => {  
 const user = await supabaseClient.auth.getUser();  
  
 if (user) {  
 return user.data.user?.role;  
 }  
  
 return null;  
};

To implement RBAC within a specific module of your application, you can use the

accessControlProvider

accessControlProvider

accessControlProvider

accessControlProvider interface in Refine. This allows you to define the

can

can

can

can function however you want, enabling you to control access to specific resources based on user roles[^2^].

Here's an example of how you can implement RBAC using Casbin and Refine's

accessControlProvider

accessControlProvider

accessControlProvider

accessControlProvider:

accessControlProvider: {
    can: async (params) => {
        const user = await supabaseClient.auth.getUser();
        const { data } = await supabaseClient.rpc("get_my_claim", {
            claim: "role",
        });

        const enforcer = await new casbin.Enforcer(model, policy);
        return enforcer.enforce(data, params.resource, params.action, params.record);
    },
}

accessControlProvider: {
    can: async (params) => {
        const user = await supabaseClient.auth.getUser();
        const { data } = await supabaseClient.rpc("get_my_claim", {
            claim: "role",
        });

        const enforcer = await new casbin.Enforcer(model, policy);
        return enforcer.enforce(data, params.resource, params.action, params.record);
    },
}

accessControlProvider: {
    can: async (params) => {
        const user = await supabaseClient.auth.getUser();
        const { data } = await supabaseClient.rpc("get_my_claim", {
            claim: "role",
        });

        const enforcer = await new casbin.Enforcer(model, policy);
        return enforcer.enforce(data, params.resource, params.action, params.record);
    },
}

accessControlProvider: {
    can: async (params) => {
        const user = await supabaseClient.auth.getUser();
        const { data } = await supabaseClient.rpc("get_my_claim", {
            claim: "role",
        });

        const enforcer = await new casbin.Enforcer(model, policy);
        return enforcer.enforce(data, params.resource, params.action, params.record);
    },
}

In this example, the

can

can

can

can function uses Casbin to enforce access control policies based on the user's role, the resource they're trying to access, and the action they're trying to perform[^3^].

K

kapa.ai•4/13/24, 8:01 PM

Remember, you're not tied to using Casbin or any other specific tool for implementing RBAC in your Refine application. You can implement the

can

can

can

can function however you want, depending on your specific needs[^2^].

^1^]: [Refine Blog - Implementing Role Based Access Control (https://refine.dev/blog/refine-pixels-6#user-permissions-with-supabase-in-refine)
^2^]: [Refine Documentation - Authorization Guide (https://refine.dev/docs/guides-concepts/authorization/#access-control-provider)
^3^]: [Refine Blog - A week of Refine ft. Supabase (https://refine.dev/blog/refine-pixels-1#day-six---add-role-based-authorization)
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